SGP/SMOS/E3 - Questionable RH data at E3 on 22 JUN 2000

The RH data from E3 SMOS on 22 JUN 2000 between 0530 and 0700 is questionable.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Relative Humidity(min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E6 - E6 SMOS Wind Direction

Wind Direction incorrect during this time period.
The bracket used to mount the wind direction sensor
broke (ice suspected) on the 9th of February. It was replaced during
routine maintenance on the 16th of February. We do not know why the data
did not recover until the 22nd.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E6 - E6 SMOS Wind Direction

Wind Direction incorrect during this time period.

We noticed the data was incorrect on the 28th of February.  
During routine maintenance on the 1st of March the
technician checked the wind direction sensor and noted that 
it needed to be replaced (no spares on hand at the time).  
On the 15th of March the sensor was replaced.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E9 - E9 SMOS RH Drifting High

RH began drifting on high side from 10/16/2000 until replacement on 2/27/2001.  
Replacement drifitng high also.  Replaced 3/13/2001.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E1 - E1 SMOS Wind speed and direction values incorrect

Wind speed and direction sensors reporting incorrect values due to accumulation of ice on 
the sensors.

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E5 - E5 SMOS Wind speed sensor frozen

Wind speed data incorrect due to ice accumulation on sensor.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E6 - E6 SMOS Wind speed values incorrect

Wind speed sensor values incorrect due to ice accumulation on the sensor.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E7 - E7 SMOS Wind speed values incorrect

Wind speed sensor had ice accumulation causing wind speed data to be incorrect.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E4 - E4 SMOS Wind Speed data incorrect

Wind speed sensor had ice accumulation causing data to be incorrect.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E8 - E8 SMOS Wind speed sensor data incorrect

Wind speed sensor had ice accumulation causing data to be incorrect.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E9 - E9 SMOS Wind speed and direction values incorrect

Wind speed and direction sensors had ice accumulation, causing data to be incorrect.

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E4 - E4 SMOS Missing Data Values

Data values missing due to loose power wire.

• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Snow Depth Sensor(snow_sen)
• Snow Depth(snow)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)

• Maximum Snow Depth(max_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Temperature(min_temp)
• Maximum Temperature(max_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Vapor Pressure(max_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Snow Depth(time_min_snow)

SGP/SMOS/E8 - E8 SMOS RH values beyond tolerance

RH% values reading above 103%, which is beyond tolerance.

• Relative humidity inside the instrument enclosure(rh)

• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Maximum Relative Humidity(max_rh)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E9 - E9 SMOS RH values outside tolerance

RH values recorded above 103%.  These values are outside tolerance.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E9 - E9 SMOS RH VALUES SUSPECT

Rh values reported at greater than 103% and failing to 0% intermittently during time 
period.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E6 - E6 SMOS WIND SPEED AND DIRECTION DATA INCORRECT

Wind speed and direction data incorrect due to ice accumulation and a broken mount 
bracket.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E6 - E6 SMOS WIND DIRECTION DATA 180 DEGREES IN ERROR

Wind direction data 180 degrees in error due to sensor wires being reversed.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E9 - E9 SMOS WIND SPEED DATA INCORRECT

Wind speed data incorrect due to ice accumulation on sensor.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E6 - E6 SMOS ALL DATA VALUES OFF SCALE

All data values off scale due to routine maintenance.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)

• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Standard Deviation of Relative Humidity(sd_rh)
• Wind Speed (vector averaged)(wspd_va)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Snow Depth(snow)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E8 - E8 SMOS RH VALUES OUTSIDE OF TOLERANCE

Rh% values readings falling outside of tolerance on high side

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E6 - E6 SMOS WIND SPEED AND DIRECTION VALUES INCORRECT

Wind speed and direction values incorrect due to ice accumulation on the sensors.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E8 - E8 WS DATA INCORRECT

WS data artificially low due to ice accumulation on sensor.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E4 - E4 SMOS WIND DIRECTION AND SPEED DATA INCORRECT

Wind speed data and wind direction data incorrect due to ice accumulation on the sensors.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E5 - E5 SMOS WIND DIRECTION AND SPEED DATA INCORRECT

Wind speed and direction data incorrect due to ice accumulation on the sensors.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E3 - E3 SMOS WIND SPEED DATA INCORRECT

Wind speed data incorrect due to ice accumulation.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)

SGP/SMOS/E6 - E6 SMOS WIND SPEED AND DIRECTION VALUES INCORRECT

Wind speed and direction values incorrect due to ice accumulation on sensors.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E6 - E6 SMOS ALL DATA VALUES MISSING

All data values missing.  Reason unknown.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)

• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Standard Deviation of Relative Humidity(sd_rh)
• Wind Speed (vector averaged)(wspd_va)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Snow Depth(snow)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E9 - E9 SMOS DATA VALUES OFF SCALE

Data values off scale during T/RH sensor replacement.

• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Snow Depth(snow)

SGP/SMOS/E1 - E1 SMOS RH VALUES INCORRECT

Rh% values reported as -69999.  Reason unknown, suspect loose wire.

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E1 - E1 SMOS ALL DATA VALUES OFF SCALE

All data values off scale due to routine maintenance.

• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Snow Depth Sensor(snow_sen)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Snow Depth(snow)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E8 - E8 SMOS RH DATA VALUES ARTIFICIALLY HIGH

Rh% values approximately 10% at 70% and above.  Sensor drifted out of tolerance.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Minimum Vapor Pressure(min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E8 - E8 SMOS RH% Values Suspect

RH% values approximately 10% high above 70%.  Sensor replaced.

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E3 - E3 DATA VALUES MISSING

All data values missing due to SDS modem failure.

• Hourly precipitation(precip)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• barometric pressure(bar_pres)
• Snow Depth(snow)

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• Minimum Snow Depth(min_snow_depth)
• Minimum Barometric Pressure(min_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Temperature(time_min_temp)
• Maximum Temperature(max_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Relative Humidity(min_rh)
• Minimum Temperature(min_temp)

SGP/SMOS/E8 - E8 SMOS BAROMETRIC PRESSURE VALUES INTERMITTENT -9999

Barometric pressure values intermittent -9999 due to a loose wire.

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

SGP/SMOS/E6 - E6 SMOS DATA VALUES INCORRECT

All data values off scale due to routine maintenance.

• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Hourly precipitation(precip)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)

• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Snow Depth(snow)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Mean Wind Speed(wspd)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Relative Humidity(sd_rh)
• Hourly precipitation(precip)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Wind Speed (vector averaged)(wspd_va)

• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Wind Speed (vector averaged)(wspd_va)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Snow Depth(snow)
• Beam 0 Temperature(temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E4 - E4 SMOS DATA VALUES INCORRECT

All data values off-scale during routine maintenance.

• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Hourly precipitation(precip)
• Snow Depth Sensor(snow_sen)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Snow Depth(snow)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Snow Depth Sensor(snow_sen)
• Snow Depth(snow)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)

• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• barometric pressure(bar_pres)

SGP/SMOS/E9 - E9 SMOS RH% DATA INCORRECT

RH% values recorded as 0.  Sensor replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

SGP/SMOS/E1 - E1 SMOS RH% VALUES SUSPECT

RH% values approximately 10% high at values of 70% and higher.  Sensor replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E1 - E1 SMOS DATA VALUES OFF SCALE

All data values off-scale during replacement of T/RH probe.

• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)

• Standard Deviation of Wind Speed(sd_wspd)
• Relative humidity inside the instrument enclosure(rh)
• Snow Depth Sensor(snow_sen)
• Hourly precipitation(precip)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth(snow)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Snow Depth Sensor(snow_sen)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Beam 0 Temperature(temp)
• Snow Depth(snow)

• Mean Wind Speed(wspd)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)

SGP/SMOS/E3 - E3 SMOS 1 MINUTE DATA VALUES INCORRECT

The 1-minute data values were all off-scale during lowering of tower for routine 
maintenance.

• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)

• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E3 - E3 SMOS WIND SPEED DATA INCORRECT

Due to an ice storm and subsequent accumulation of ice on the wind speed sensor, the wind 
speed values are artificially low.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E6 - E6 SMOS WIND SPEED VALUES INCORRECT

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E6 -E6 SMOS T/RH VALUES SUSPECT

All T/RH values and those calculated from them are suspect due to possible icing on the 
sensor.  Ice accumulated on sensor or housing during ice storm.

• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Temperature(time_max_temp)
• Minimum Temperature(min_temp)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)

• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)

SGP/SMOS/E7 - E7 SMOS 1-MINUTE DATA VALUES INCORRECT

The 1-minute data values were all off-scale due to tower being lowered for routine 
maintenance.

• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)

• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E1 - Incorrect Windspeed

The E1 SMOS was lowered to the surface on 5 OCT 1999 between 1600 and 1617 GMT
to install counterweights.

• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• null(Raw data stream - documentation not supported)

• null(Raw data stream - documentation not supported)

SGP/SMOS/E1 - Icing affected E1 SMOS wind speed

Icing conditions at E1 caused the wind speed to be questionable starting at
0600 GMT on 16 MAR 98.  By 1310 GMT, the icing caused the propellor to quit.
Recovery date and time unknown because power outage caused loss of data.  The
incorrect data and missing data are identified via other DQRs.

• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• null(Raw data stream - documentation not supported)

SGP/SMOS/E1 - Storage module and rain gauge damaged by lightning

The SMOS E1 storage module and rain gauge were damaged by lightning
at 0030 GMT.  All data were lost 8 JUL - 10 JUL, 2000 GMT.  Rain gauge
data were lost until the gauge was replaced on 24 JUL 96.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E8 - Reprocess: Wind speed calibration

EDITOR'S NOTE:  The earliest portion of the period of time covered 
by this DQR occurred prior to the begin date of regular ARM data.
Those data are not readily available from the ARM archive, but are
available upon request.  The actual period of time covered by this
DQR is 930403.0000-930811.1530.


Practically all of the information in this DQR is derived from
P930723.1 and C930830.1, both of which were submitted by Dick Hart. 

The calibrations initially used for wind speeds on SMOS systems at 
Coldwater (E8), Ashton (E9), the central faciality (E13), Ringwood (E15),
and Meeker (E20) were originally "generic"values, but analysis of the 
N.I.S.T traceable calibration data reveals that use of these "generic" 
calibrations produces data with insufficient accuracy. The calibrations 
for the wind speed sensor associated with the instrument must be used 
in the datalogger program in order to obtain data with a 1% uncertainty.
For the worst case, one wind speed sensor underestimates the wind speed 
by 1.1 m/s at 30 m/s when the "generic" calibration is used.  This is 
on top of the 1% calibration uncertainty.  

No unreported data loss occurred as a result of this calibration question, 
but users of the data should adjust the wind speed values before analysis 
involving these wind speed values.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E9 - Reprocess: Wind speed calibrations

EDITOR'S NOTE:  The earliest portion of the period of time covered
by this DQR occurred prior to the begin data of regular ARM data.
Those data are not readily available from the ARM archive but are
available upon request.  The actual period of time covered by this
DQR is 930331.0000-930823.2359.


Practically all of the information in this DQR is derived from
P930723.1 and C930830.1, both of which were submitted by Dick Hart. 

The calibrations initially used for wind speeds on SMOS systems at 
Coldwater (E8), Ashton (E9), the central faciality (E13), Ringwood (E15),
and Meeker (E20) were originally "generic"values, but analysis of the 
N.I.S.T traceable calibration data reveals that use of these "generic" 
calibrations produces data with insufficient accuracy. The calibrations 
for the wind speed sensor associated with the instrument must be used 
in the datalogger program in order to obtain data with a 1% uncertainty.
For the worst case, one wind speed sensor underestimates the wind speed 
by 1.1 m/s at 30 m/s when the "generic" calibration is used.  This is 
on top of the 1% calibration uncertainty.  

No unreported data loss occurred as a result of this calibration question, 
but users of the data should adjust the wind speed values before analysis 
involving these wind speed values.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E5 - Lowered to surface to install counterweights

The E5 SMOS was lowered to the surface on 6 OCT 1999 between 1050 and 1110 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• null(Raw data stream - documentation not supported)

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)

• null(Raw data stream - documentation not supported)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E6 - E6 SMOS lowered to surface to install counterweights

The E6 SMOS was lowered to the surface on 6 OCT 1999 between 1505 and 1522 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• null(Raw data stream - documentation not supported)

• null(Raw data stream - documentation not supported)

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E7 - E7 SMOS lowered to surface to install counterweights

The E7 SMOS was lowered to the surface on 8 OCT 1999 between 0740 and 0755 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• null(Raw data stream - documentation not supported)

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• null(Raw data stream - documentation not supported)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E8 - Incorrect E8 SMOS rain data

The E8 SMOS rain gauge pulse counter was found to be non-operational during the 16 SEP 97 
PM.  It was repaired by replacing the CR10 wiring harness on 29 OCT 97 at 1815 GMT.

• Hourly precipitation(precip)

• null(Raw data stream - documentation not supported)

• Hourly precipitation(precip)

SGP/SMOS/E8 - E8 SMOS lowered to surface to install counterweights

The E8 SMOS was lowered to the surface on 5 OCT 1999 between 1325 and 1350 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• null(Raw data stream - documentation not supported)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)

• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)

• null(Raw data stream - documentation not supported)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E9 - Tower lowered for work on instrumentation

Due to tower being lowered to work on instrumentation, all wind data
taken between 1515 and 2030 GMT on 18 OCT 94 are incorrect.

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E9 - E9 SMOS lowered to surface to install counterweights

The E9 SMOS was lowered to the surface on 20 OCT 1999 between 1110 and 1126 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)

• null(Raw data stream - documentation not supported)

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• null(Raw data stream - documentation not supported)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E4 - E4 SMOS lowered to surface to install counterweights

The E4 SMOS was lowered to the surface on 6 OCT 1999 between 0835 and 0855 GMT 
while counterweights were installed.  All wind speed and direction data taken during this 
period should be flagged as incorrect.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• null(Raw data stream - documentation not supported)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• null(Raw data stream - documentation not supported)

SGP/SMOS/E3 - E3 SMOS DATA VALUES INCORRECT

All data values incorrect due to tower being lowered in order to clean the radiometer 
domes.

• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Hourly precipitation(precip)
• Snow Depth(snow)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• barometric pressure(bar_pres)
• Snow Depth(snow)

• Mean Wind Speed(wspd)
• Hourly precipitation(precip)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E9 - E9 SMOS RH VALUES SUSPECT

RH values and data values calculated from RH are suspect due to the sensor malfunctioning 
and reporting RH % values in excess of 104% during saturated conditions.

• Maximum Relative Humidity(max_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Relative Humidity(min_rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E9 - E9 SMOS ALL DATA VALUES INCORRECT

All data values incorrect due to tower being lowered during T/RH probe replacement.

• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Mean Wind Speed(wspd)

• Hourly precipitation(precip)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E6 - E6 SMOS RH VALUES INCORRECT

RH% values ranged from 0 to 95% in short periods of time.  Suspect the sensor element 
became wet causing the unusual readings.

• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E6 - E6 TEMPERATURE AND RH DATA INCORRECT

Temperature and RH data incorrect during sensor replacement.

• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)

• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E8 - E8 WIND SPEED VALUES SUSPECT

The wind speed sensor failed the 6-month field calibrations.  Data should be considered 
suspect during this time period.

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E8 - E8 SMOS DATA VALUES OFF-SCALE

All data values off-scale during wind monitor replacement.

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)

• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)

SGP/SMOS/E6 - RH Values Incorrect

RH and values calculated from RH suspect due to malfunction of sensor during saturated 
conditions.  RH readings exceeded 104% and at times reached 111%.  During non-saturated 
periods RH readings appear to be ~20% higher than neighboring sites.

• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E6 - 1 minute Data Values Incorrect

All data values incorrect due to tower being lowered for T/RH probe replacement.

• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)

• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E7 - 1 minute Data Values Incorrect

Data values incorrect due to tower being lowered for T/RH probe replacement.

• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)

• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E8 - Data Values Incorrect

Data values incorrect due to intermediate processing not being turned off during extended 
maintenance procedures.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Snow Depth(snow)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Snow Depth Sensor(snow_sen)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)

• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Hourly precipitation(precip)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)

• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Snow Depth(snow)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Hourly precipitation(precip)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)

• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)

SGP/SMOS/E7 - Barometric Pressure Incorrect

The barometric pressure readings were reported as 0.00, reason unknown.

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

SGP/SMOS/E3 - E3 SMOS 1 MINUTE T/RH DATA INCORRECT

T/RH vlaues incorrect during maintenance check of the probe.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)

• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E6 - RH 1 min data incorrect

RH% values were reported as 0%.  Reason unknown.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E1 - Wind Speed data incorrect due to icing

Wind speeds were artificially low due to icing on the sensor.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E8 - Wind speed data incorrect due to icing

Wind speed values are artificially low due to icing on sensor.

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

SGP/SMOS/E7 - Barometric Pressure Data Incorrect

Barometric pressure values were reported as 0.00 or -9999.  Barometer was replaced.

• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)

SGP/SMOS/E3 - Precip data incorrect

The precipitation that was reported on this date was caused by technicians tip testing the 
gage.  Disregard any precipitation data that was generated.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E7 - Precip data not reported

No Precip data collected during this time period.  The CR-10 wiring panel failed and was 
replaced.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E3 - E3 SMOS WIND DATA INCORRECT

Wind speed data began to be reported as 0 m/s on 05/01/2003 @ 04:59 GMT.  The wind 
direction data became incorrect soon after the wind speed data.  It was found that the wiring 
had been broken.  The data wires were re-routed and repaired.

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E9- E9 TEMPERATURE & RH% DATA INCORRECT

The T/RH probe failed although there are intermittent periods of useful data.

• Maximum Relative Humidity(max_rh)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Temperature(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Maximum Temperature(max_temp)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)

• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

SGP/SMOS/E6 - E6 SMOS RH% VALUES ARTIFICIALLY LOW

RH% values were artificially low compared to other nearby sites.  Reason unknown.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E6 - Sensor failure

On 08/30, after heavy rains had fallen, the RH sensor
began occasionally reporting readings of around 0 or
erratic data.  Although frequently readings appearred
reasonable, they unpredictably dropped or become erratic
again for long periods of time.  The sensor was replaced
on 09/11/2003 @ 16:40 GMT.

• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E4 - Sensor failure--RH data bad

RH readings are questionable during high moisture conditions.  Readings frequently are 
above tolerance (104%) during saturated conditions. During non-saturated conditions the RH% 
readings are fine.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

SGP/SMOS/E4 - Sensor failure--RH data incorrect

RH readings are questionable during high moisture conditions.  Readings
   frequently are above tolerance (104%) during saturated conditions. During
   non-saturated conditions the RH% readings are fine.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Minimum Vapor Pressure(min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)

SGP/SMOS/E6 - Temperature values incorrect, sensor failure.

The temperature element of the T/RH probe failed.  Sensor was replaced.

• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Minimum Temperature(min_temp)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)

• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)

SGP/SMOS/E4 - Sensor failure

RH values drop to zero during most of the period between 01/17 and 01/19.  Sensor was 
replaced.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E4 - RH sensor intermittent

RH sensor intermittently failing during entire period.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

SGP/SMOS/E4 - RH sensor intermittent

RH sensor intermittently failing during entire period.  Sensor replaced 10/22/2003 @ 16:48 
GMT.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E1 - 6-month Calibration Checks

During the time periods specified, the SMOS.E1 tower was
lowered for 6-month Calibration Checks.   During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Minimum Temperature(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Relative Humidity(min_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Temperature(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Relative Humidity(time_min_rh)

• Standard Deviation of Air Temperature(sd_temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E1 - 6-month Calibration Checks

During the time periods specified, the SMOS.E1 tower was
lowered for 6-month Calibration Checks.   During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.
   
Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)

• Standard Deviation of Wind Speed(sd_wspd)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Beam 0 Temperature(temp)

• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)

• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Temperature(time_max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Relative Humidity(time_min_rh)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Temperature(time_min_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Temperature(min_temp)
• Minimum of Wind speed(min_wspd)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Temperature(max_temp)
• Time of Minimum Wind Speed(time_min_wspd)

SGP/SMOS/E1 - 6-month Calibration Checks

During the time periods specified, the SMOS.E1 tower was lowered for 6-month Calibration 
Checks.   During these times wind data are incorrect and temperature and humidity data may 
be incorrect.

Note, exact times when tower was down or maintenance was being performed is sometimes 
unknown.  Users should use the remaining data from these days with caution.

• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Temperature(min_temp)
• Maximum Temperature(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Minimum of Wind speed(min_wspd)

SGP/SMOS/E3 - 6-month Calibration Checks

During the time periods specified, the SMOS.E3 tower was
lowered for 6-month Calibration Checks.   During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)

• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• maximum wind speed (gusts)(max_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Temperature(max_temp)
• Minimum Relative Humidity(min_rh)
• Maximum Relative Humidity(max_rh)
• Minimum Temperature(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)

SGP/SMOS/E3 - 6-month Calibration Checks

During the time periods specified, the SMOS.E3 tower was
lowered for 6-month Calibration Checks.   During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Relative Humidity(min_rh)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Temperature(min_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Maximum Temperature(max_temp)
• Time of Minimum Temperature(time_min_temp)
• Maximum Relative Humidity(max_rh)
• Minimum of Wind speed(min_wspd)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)

• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E3 - 6-month Calibration Checks

During the time periods specified, the SMOS.E3 tower was lowered for 6-month Calibration 
Checks.   During these times wind data are incorrect and temperature and humidity data may 
be incorrect.

Note, exact times when tower was down or maintenance was being performed is sometimes 
unknown.  Users should use the remaining data from these days with caution.

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)

• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Temperature(min_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Temperature(time_min_temp)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)

SGP/SMOS/E4 - 6-month Calibration Checks

During the time periods specified, the SMOS.E4 tower was
lowered for 6-month Calibration Checks.   During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Temperature(min_temp)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Maximum Temperature(time_max_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Vapor Pressure(min_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Relative Humidity(time_min_rh)