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)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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

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

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E11 - E11 SMOS Wind speed and direction data incorrect

Wind speed and direction sensor had ice accumulation casusing data to be incorrect.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E11 - E11 SMOS Data values off scale

All data values off scale or incorrect due to routine maintenance and lowering of the 
tower.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Snow, depth, 30-min intervals(snow)
• Unit Vector Wind Direction(wdir)
• Precipitation, total(precip)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Humidity, relative(rh)
• sd_bar_pres
• snow_sen
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

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)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E9 - E9 SMOS RH VALUES SUSPECT

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

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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

Wind speed data incorrect due to ice accumulation on sensor.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

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

Data values off scale during T/RH sensor replacement.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Temperature, air(temp)
• Precipitation, total(precip)
• Snow, depth, 30-min intervals(snow)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• snow_sen
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)

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

RH% values recorded as 0.  Sensor replaced.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - E11 SMOS PRESSURE VALUES INCORRECT

Pressure values reported as -9999, reason unknown.

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• sd_bar_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

SGP/SMOS/E11 - E11 SMOS WIND SPEED DATA INCORRECT

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

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

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.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(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.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)

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.

• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E11 - Humidity sensor failed

RH Sensor failed.  Replaced on 31 OCT 95.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

SGP/SMOS/E11 - E11 SMOS lowered to surface to install counterweights

The E11 SMOS was lowered to the surface on 5 OCT 1999 between 1005 and 1035 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect
during this period.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Raw data stream - documentation not supported

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• Raw data stream - documentation not supported

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.

• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(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.

• Precipitation, total(precip)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Temperature, air(temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Precipitation, total(precip)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - Rain Gauge Inoperative

Rain gauge was found to be inoperative by technicians on 05/17/2002.  Last precipitation 
measurement by site was on 04/27/2002.

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

SGP/SMOS/E11 - 1 minute Data Values Incorrect

Data values off-scale during barometer re-test.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Mean Wind Speed(wspd)
• Temperature, air(temp)

• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

SGP/SMOS/E11 - 1 minute Data Values Incorrect

Data values incorrect due to barometer and T/RH probe re-test from 15:58 - 16:20 GMT.
All T/RH/water vapor measurements off-scale from 16:38 - 16:43 GMT during T/RH probe 
replacement.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Mean Wind Speed(wspd)
• Temperature, air(temp)

• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

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

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

• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(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.

• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)

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.

• Highest gust within hour is reported(max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Minimum Wind Speed(min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)

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.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_bar_pres
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)

• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Maximum Barometric Pressure(max_bar_pres)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - 6-month Calibration Checks

During the time periods specified, the SMOS.E11 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, 30-min intervals, standard deviation(sd_wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Humidity, relative(rh)
• sd_bar_pres
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Highest gust within hour is reported(max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)

• Mean Wind Speed(wspd)
• Temperature, air(temp)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E11 - 6-month Calibration Checks

During the time periods specified, the SMOS.E11 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.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_bar_pres
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)

• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - 6-month Calibration Checks

During the time periods specified, the SMOS.E11 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.

• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Highest gust within hour is reported(max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)

• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• sd_vap_pres
• Temperature, air(temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E11 - Sensor failing during saturation conditions

RH% readings from this sensor exceeded the 104% threshold during saturated conditions.  
Sensor replaced.

• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)

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

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

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Highest gust within hour is reported(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E11 - Missing data due to ice storm

Data are missing due to severe ice storm.

• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• time_offset
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Snow Depth(time_max_snow)
• lat
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Snow Depth(max_snow)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Minimum Snow Depth(min_snow_depth)
• alt
• time
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Highest gust within hour is reported(max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• base_time
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• lon
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)

• lat
• lon
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• time_offset
• Temperature, air(temp)
• Precipitation, total(precip)
• alt
• base_time
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• alt
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Precipitation, total(precip)
• Snow, depth, 30-min intervals(snow)
• Humidity, relative(rh)
• lon
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• snow_sen
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• base_time
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• vbat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• time_offset

SGP/SMOS/E11 - Wind Data Suspect

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

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E11  - Reprocess: Barometer data factor of 10 too high.

The program was modified and an incorrect multiplier was used so that the barometer data 
was reported in hPa instead of kPa.

• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• sd_bar_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

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, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E11 - 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 Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

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.

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

SGP/SMOS/E9 - Missing Data

Data are missing and unrecoverable

• Highest gust within hour is reported(max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• alt
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• base_time
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Snow Depth(time_min_snow)
• time_offset
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• lat
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Snow Depth(min_snow_depth)
• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• lon
• Minimum Wind Speed(min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• time_offset
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• alt
• base_time
• lat
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Snow, depth, 30-min intervals(snow)
• sd_bar_pres
• Precipitation, total(precip)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Unit Vector Wind Direction(wdir)
• snow_sen
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• vbat
• Mean Wind Speed(wspd)
• lon

• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• base_time
• Humidity, relative(rh)
• lat
• time_offset
• lon
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• alt

SGP/SMOS/E9 - Missing Data

Data are missing and unrecoverable

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• time_offset
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• alt
• base_time
• lat
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Snow, depth, 30-min intervals(snow)
• sd_bar_pres
• Precipitation, total(precip)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Unit Vector Wind Direction(wdir)
• snow_sen
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• vbat
• Mean Wind Speed(wspd)
• lon

• Time of Maximum Wind Speed(time_max_wspd)
• lon
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Highest gust within hour is reported(max_wspd)
• Maximum Snow Depth(max_snow)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Snow Depth(time_min_snow)
• base_time
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Minimum Wind Speed(min_wspd)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• time
• alt
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• time_offset
• Time of Maximum Snow Depth(time_max_snow)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Maximum Barometric Pressure(max_bar_pres)
• lat

• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• base_time
• Humidity, relative(rh)
• lat
• time_offset
• lon
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• alt

SGP/SMOS/E11 - Missing Data

Data are missing and unrecoverable

• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Minimum Snow Depth(min_snow_depth)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Maximum Snow Depth(max_snow)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• lon
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• lat
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Barometric Pressure(min_bar_pres)
• base_time
• Time of Relative Humidity(time_min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• time_offset
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• alt

• lat
• lon
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• time_offset
• Temperature, air(temp)
• Precipitation, total(precip)
• alt
• base_time
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• alt
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Precipitation, total(precip)
• Snow, depth, 30-min intervals(snow)
• Humidity, relative(rh)
• lon
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• snow_sen
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• base_time
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• vbat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• time_offset

SGP/SMOS/E11  - Missing Data

Data are missing and unrecoverable

• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• time_offset
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Snow Depth(time_max_snow)
• lat
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Snow Depth(max_snow)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Minimum Snow Depth(min_snow_depth)
• alt
• time
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Highest gust within hour is reported(max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• base_time
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• lon
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)

• lat
• lon
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• time_offset
• Temperature, air(temp)
• Precipitation, total(precip)
• alt
• base_time
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• alt
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Precipitation, total(precip)
• Snow, depth, 30-min intervals(snow)
• Humidity, relative(rh)
• lon
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• snow_sen
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• base_time
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• vbat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• time_offset

SGP/SMOS/E11 - RH Values Incorrect

RH% values incorrect along with derived values.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

SGP/SMOS/E9 - Wind speed incorrect

Wind sensor was reporting winds at 0 m/s for long periods of time. A loose connection was 
found and corrected.

• qc_sd_wspd
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• qc_wspd
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• qc_wspd_va
• Mean Wind Speed(wspd)

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• qc_wspd
• qc_wspd_va
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

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.

• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• alt
• Maximum Barometric Pressure(max_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Maximum Temperature(time_max_temp)
• time_offset
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• lat
• base_time
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• lon
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Snow, depth, 30-min intervals(snow)
• base_time
• Humidity, relative(rh)
• alt
• lat
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• vbat
• Mean Wind Speed(wspd)
• time_offset
• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Precipitation, total(precip)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• snow_sen
• Unit Vector Wind Direction(wdir)
• lon

• lat
• time_offset
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• alt
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• base_time
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• lon
• Precipitation, total(precip)

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.

• Humidity, relative(rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Temperature, air(temp)
• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)

SGP/SMOS/E11 - Bad Humidity Data

All SMOS E11 humidity data taken during this period are incorrect.
The sensor was replaced 22 AUG 95 at 1600 GMT.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

SGP/SMOS/E11 - System down for SIROS maintenance

All SMOS E11 data taken during this period are incorrect due to the tower
being down for SIROS maintenance.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• alt
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Snow, depth, 30-min intervals(snow)
• base_time
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Precipitation, total(precip)
• Temperature, air(temp)
• Humidity, relative(rh)
• sd_bar_pres
• snow_sen
• sd_vap_pres
• lat
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• vbat
• time_offset
• Mean Wind Speed(wspd)
• lon

• Mean Wind Speed(wspd)
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• time_offset
• lat
• base_time
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• alt
• Precipitation, total(precip)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• lon

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.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Precipitation, total(precip)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Temperature, air(temp)
• Precipitation, total(precip)
• Snow, depth, 30-min intervals(snow)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• snow_sen
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E9 - Incorrect wind data

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

• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E11 - Humidity sensor failed

RH Sensor failed.  Replaced on 31 OCT 95.

• Precipitation, total(precip)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Temperature, air(temp)
• Humidity, relative(rh)
• Precipitation, total(precip)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - Questionable humidity data from SMOS E11

All SMOS E11 humidity data taken during this period are questionable.
Maximums exceeding 104% RH were reported.  The sensor was replaced 
on 12 DEC 95 at 2000 GMT.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

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.

• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)

• Raw data stream - documentation not supported

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E11 - E11 SMOS down for tower replacement

The E11 SMOS was shut down from 11 MAY 1999 at 2030 GMT until 19 MAY 1999 at 1930 GMT 
while the tower was replaced.

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Snow, depth, 30-min intervals(snow)
• base_time
• Humidity, relative(rh)
• snow_sen
• lat
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• alt
• Unit Vector Wind Direction(wdir)
• Precipitation, total(precip)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_bar_pres
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• vbat
• time_offset
• lon

• Raw data stream - documentation not supported

• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• lat
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• time_offset
• base_time
• alt
• Precipitation, total(precip)
• lon

• alt
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• lon
• Time of Maximum Wind Speed(time_max_wspd)
• base_time
• Maximum Snow Depth(max_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Wind Speed(min_wspd)
• lat
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Snow Depth(min_snow_depth)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• time_offset
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Highest gust within hour is reported(max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)

• Raw data stream - documentation not supported

SGP/SMOS/E11 - E11 SMOS lowered to surface to install counterweights

The E11 SMOS was lowered to the surface on 5 OCT 1999 between 1005 and 1035 GMT 
while counterweights were installed.  All temperature and humidity data are questionable
during this period.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Raw data stream - documentation not supported

• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Raw data stream - documentation not supported

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)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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.

• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• alt
• Maximum Barometric Pressure(max_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Maximum Temperature(time_max_temp)
• time_offset
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• lat
• base_time
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• lon
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• Snow, depth, 30-min intervals(snow)
• base_time
• Humidity, relative(rh)
• alt
• lat
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• vbat
• Mean Wind Speed(wspd)
• time_offset
• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Precipitation, total(precip)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• snow_sen
• Unit Vector Wind Direction(wdir)
• lon

• lat
• time_offset
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• alt
• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• base_time
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• lon
• Precipitation, total(precip)