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/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/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/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/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/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/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/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/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/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/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/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/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/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/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/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/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/E8 - 6-month Calibration Checks

During the time periods specified, the SMOS.E8 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.

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

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

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

SGP/SMOS/E8 - 6-month Calibration Checks

During the time periods specified, the SMOS.E8 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)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)

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

• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• 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)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E8 - 6-month Calibration Checks

During the time periods specified, the SMOS.E8 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)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• 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)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)

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

• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• 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)
• 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)

SGP/SMOS/E9 - 6-month Calibration Checks

During the time periods specified, the SMOS.E9 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.

• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Temperature(max_temp)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Barometric Pressure(min_bar_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 Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Minimum Temperature(min_temp)

• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• 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)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)

SGP/SMOS/E9 - 6-month Calibration Checks

During the time periods specified, the SMOS.E9 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.

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

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

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

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

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

SGP/SMOS/E9 - 6-month Calibration Checks

During the time periods specified, the SMOS.E9 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.

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• 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)

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

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

SGP/SMOS/E8 - T/RH probe Intermittently failing

Beginning of 12/14/2004 the RH% values at E8 became intermittently bad.  RH% values drop 
to 0% at times.  On 01/25/2005 @ 1820GMT a new probe was installed.  New probe RH% 
readings were over 104% in saturated conditions.  This probe was also replaced.

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

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

SGP/SMOS/E9 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

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

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

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

SGP/SMOS/E8 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

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

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

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

SGP/SMOS/E8 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

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

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

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

SGP/SMOS/E8 - Incorrect Temp, RH and windspeed

Bovines chewed through the T/RH and wind speed and direction cable.

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

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

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

SGP/SMOS/E8 - Wind Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be incorrect.  In many 
instances it was frozen and unmoving, at times it measured values but those are extremely 
suspect.

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

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

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

SGP/SMOS/E9 - Wind Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be incorrect.  In many 
instances it was frozen and unmoving, at times it measured values but those are extremely 
suspect.

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

• 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)

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

SGP/SMOS - Snowfall caused delayed count of precip

A snow/ice storm moved through the SGP region on 01/31/08 bringing below-freezing 
temperatures, affecting the precip field.  Data is suspect during the date/time range specified 
due to melting ice after temperatures warmed above freezing.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E8 - Missing Data

Data are missing and unrecoverable.

• base time(base_time)
• Wind Speed (vector averaged)(wspd_va)
• Dummy altitude for Zeb(alt)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)
• lat(lat)
• 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)
• Batter Voltage(vbat)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)

• Mean Wind Speed(wspd)
• lon(lon)
• 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)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Beam 0 Temperature(temp)
• base time(base_time)

• lat(lat)
• Minimum Temperature(min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Dummy altitude for Zeb(alt)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Time offset of tweaks from base_time(time_offset)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Temperature(time_max_temp)
• lon(lon)
• Time of Maximum Snow Depth(time_max_snow)
• Maximum Vapor Pressure(max_vap_pres)
• base time(base_time)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Temperature(max_temp)
• Maximum Snow Depth(max_snow)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

SGP/SMOS/E8 - Missing Data

Data are missing and unrecoverable

• Minimum Snow Depth(min_snow_depth)
• time(time)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Temperature(time_min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time offset of tweaks from base_time(time_offset)
• Minimum of Wind speed(min_wspd)
• Minimum Temperature(min_temp)
• lon(lon)
• base time(base_time)
• Maximum Barometric Pressure(max_bar_pres)
• maximum wind speed (gusts)(max_wspd)
• Dummy altitude for Zeb(alt)
• lat(lat)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Snow Depth(max_snow)
• Time of Maximum Wind Speed(time_max_wspd)

• base time(base_time)
• Wind Speed (vector averaged)(wspd_va)
• Dummy altitude for Zeb(alt)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)
• lat(lat)
• 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)
• Batter Voltage(vbat)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)

• Mean Wind Speed(wspd)
• lon(lon)
• 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)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Beam 0 Temperature(temp)
• base time(base_time)

SGP/SMOS/E9 - Missing Data

Data are missing and unrecoverable

• Maximum Relative Humidity(max_rh)
• Minimum of Wind speed(min_wspd)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Time offset of tweaks from base_time(time_offset)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Snow Depth(min_snow_depth)
• Time of Minimum Temperature(time_min_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Dummy altitude for Zeb(alt)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• base time(base_time)
• Time of Maximum Relative Humidity(time_max_rh)
• maximum wind speed (gusts)(max_wspd)
• lat(lat)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Temperature(min_temp)
• lon(lon)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Temperature(max_temp)

• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Hourly precipitation(precip)
• Dummy altitude for Zeb(alt)
• Snow Depth(snow)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Batter Voltage(vbat)
• base time(base_time)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• lon(lon)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Time offset of tweaks from base_time(time_offset)
• Beam 0 Temperature(temp)
• Snow Depth Sensor(snow_sen)

• Time offset of tweaks from base_time(time_offset)
• Mean Wind Speed(wspd)
• lon(lon)
• Unit Vector Wind Direction(wdir)
• base time(base_time)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• barometric pressure(bar_pres)
• lat(lat)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

SGP/SMOS/E9 - Missing Data

Data are missing and unrecoverable

• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Hourly precipitation(precip)
• Dummy altitude for Zeb(alt)
• Snow Depth(snow)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Batter Voltage(vbat)
• base time(base_time)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• lon(lon)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Time offset of tweaks from base_time(time_offset)
• Beam 0 Temperature(temp)
• Snow Depth Sensor(snow_sen)

• Minimum of Wind speed(min_wspd)
• Time of Minimum Temperature(time_min_temp)
• Maximum Vapor Pressure(max_vap_pres)
• lat(lat)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time offset of tweaks from base_time(time_offset)
• Maximum Snow Depth(max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Snow Depth(min_snow_depth)
• Time of Minimum Snow Depth(time_min_snow)
• base time(base_time)
• Minimum Temperature(min_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Relative Humidity(min_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Dummy altitude for Zeb(alt)
• time(time)
• lon(lon)
• maximum wind speed (gusts)(max_wspd)

• Time offset of tweaks from base_time(time_offset)
• Mean Wind Speed(wspd)
• lon(lon)
• Unit Vector Wind Direction(wdir)
• base time(base_time)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• barometric pressure(bar_pres)
• lat(lat)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

SGP/SMOS/E9 - Bad Humidity Data

During a rain storm the relative humidity readings (and vapor pressure
which is derived from RH) became erroneous.  The sensor electronics may
have gotten wet.  The sensor recovered from whatever problem occurred
e.g., the sensor dried out).  No permanent damage occurred.

No other measurements appear to have been affected.  Temperature
measurements during the period in question, agree with those obtained
by the EBBR.

• lon(lon)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• base time(base_time)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Temperature(max_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• lat(lat)
• Time offset of tweaks from base_time(time_offset)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Relative Humidity(time_min_rh)
• Dummy altitude for Zeb(alt)
• Minimum Snow Depth(min_snow_depth)
• Maximum Relative Humidity(max_rh)
• Maximum Snow Depth(max_snow)
• Minimum Temperature(min_temp)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• lat(lat)
• lon(lon)
• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• base time(base_time)
• barometric pressure(bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)

• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth Sensor(snow_sen)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Snow Depth(snow)
• barometric pressure(bar_pres)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Batter Voltage(vbat)
• Standard Deviation of Relative Humidity(sd_rh)
• lon(lon)

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

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

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

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

SGP/SMOS/E8 - Reprocess: Incorrect wind speed calibration

The wrong data logger program file was loaded into the data logger.
The best guess is that this was done when the system was relocated
on 10 MAY 95.  It was discovered and corrected during the 6 month 
sensor verification.

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

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

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

SGP/SMOS/E9 - Missing data incorrectly reported

Data for this brief period were incorrectly reported, some as 0.  These data should have 
been reported as missing, -9999.

• 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/E9 - Incorrect wind data

Wind Monitor mount broke, sensor hanging upside down.  Repaired
on 24 OCT 95.

• 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)

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

SGP/SMOS/E9 - Erroneous SMOS E9 humidity data

SMOS E9 humidity data were erroneous between 0630 on 25 MAY 97 and 2000 GMT
on 28 MAY 97.  The cause is unknown.  Site Ops personnel visited the
site on 29 MAY 97 and found no problems.

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

• 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/E8 - Reprocess: Incorrect wind directions from E8 SMOS

When the Wind Monitor was changed at E8 for scheduled PM, the replacement sensor was 
incorrectly wired to the data logger.  It did not effect the wind speed readings, but wind 
directions had E and W reversed.  Thus winds from 15 deg were reported as being from 345 
deg, and vice-versa, and winds from 165 deg were reported as being from 195 degrees, and 
vice-versa.

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E8 - Questionable 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 - Icing affected E8 SMOS wind speed

Icing conditions at E8 caused the SMOS wind speed data to be questionable
between 1400 and 2130 GMT on 16 MAR 98 and again between 0430 and 1630 GMT
on 17 MAR 98. The data appear to be unaffected between those two periods,
but may also be questionable.

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

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_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)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E8 - Questionable SMOS wind speeds at E8

Wind speed data reported between 0800 GMT on 30 JAN 99 and 0800 GMT on 31 JAN 99
 is questionable, apparently due to icing.

No other data seems to have been affected.

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

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_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)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E9 - Incorrect E9 RH data

For unknown reason or reasons the E9 SMOS reported incorrect RH data starting
on 8 FEB 99 at 1900 until 9 FEB 99 at 1530.  All humidity data reported during
that period should be flagged as incorrect.

Field techs found nothing wrong with the probe or the data when they checked
it on their rounds 18 FEB 99.

• 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)

• null(Raw data stream - documentation not supported)

• 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 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 temperature and humidity data are questionable 
during this period.

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

• null(Raw data stream - documentation not supported)

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

• null(Raw data stream - documentation not supported)

• Beam 0 Temperature(temp)
• 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)
• Standard Deviation of Air Temperature(sd_temp)

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

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

• null(Raw data stream - documentation not supported)

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

• Time of Minimum Temperature(time_min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Temperature(min_temp)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Temperature(time_max_temp)
• 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)
• Maximum Temperature(max_temp)

• null(Raw data stream - documentation not supported)

• Beam 0 Temperature(temp)
• 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 Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E8 - E8 SMOS down for tower replacement

The E8 SMOS was shut down from 12 MAY 1999 at 1600 GMT until 20 MAY 1999 at 1735 GMT 
while the tower was replaced.

• null(Raw data stream - documentation not supported)

• Hourly precipitation(precip)
• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Dummy altitude for Zeb(alt)
• Beam 0 Temperature(temp)
• lon(lon)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)

• Time of Maximum Wind Speed(time_max_wspd)
• lat(lat)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Dummy altitude for Zeb(alt)
• Maximum Snow Depth(max_snow)
• Minimum Barometric Pressure(min_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Snow Depth(min_snow_depth)
• Minimum Relative Humidity(min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Temperature(time_max_temp)
• lon(lon)
• Maximum Temperature(max_temp)
• base time(base_time)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Temperature(min_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Snow Depth(time_max_snow)

• null(Raw data stream - documentation not supported)

• Dummy altitude for Zeb(alt)
• 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)
• lat(lat)
• base time(base_time)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)
• Standard Deviation of Relative Humidity(sd_rh)
• Hourly precipitation(precip)
• Batter Voltage(vbat)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E9 - E9 SMOS down for tower replacement

The E9 SMOS was shut down from 20 MAY 1999 at 1625 GMT until 28 MAY 1999 at 1715 GMT 
while the tower was replaced.

• lon(lon)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• base time(base_time)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Temperature(max_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• lat(lat)
• Time offset of tweaks from base_time(time_offset)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Relative Humidity(time_min_rh)
• Dummy altitude for Zeb(alt)
• Minimum Snow Depth(min_snow_depth)
• Maximum Relative Humidity(max_rh)
• Maximum Snow Depth(max_snow)
• Minimum Temperature(min_temp)

• null(Raw data stream - documentation not supported)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• lat(lat)
• lon(lon)
• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• base time(base_time)
• barometric pressure(bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)

• null(Raw data stream - documentation not supported)

• Time offset of tweaks from base_time(time_offset)
• base time(base_time)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth Sensor(snow_sen)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• Snow Depth(snow)
• barometric pressure(bar_pres)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Batter Voltage(vbat)
• Standard Deviation of Relative Humidity(sd_rh)
• lon(lon)