SGP/SMOS/E21 - E21 SMOS Missing Data Values

All data values missing.  Suspected power outage due to ice storm.

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

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

SGP/SMOS/E21 - E21 SMOS ALL DATA STREAMS MISSING

All data streams missing.  Reason unknown.

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

SGP/SMOS/E24 - E24 SMOS RH% VALUES OUTSIDE TOLERANCE

Rh% values outside toerance on the high side.

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

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

SGP/SMOS/E20 - E20 SMOS ALL DATA STREAMS MISSING

All data streams missing.  Reason unknown

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

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

SGP/SMOS/E20 - Tower lowered for work on instrumentation

Due to tower being lowered to work on instrumentation between 
1700 and 1830 GMT on 03 NOV 94, all wind data are incorrect.

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

• Unit Vector Wind Direction(wdir)
• 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)

SGP/SMOS/E20 - E20 SMOS lowered to surface to install counterweights

The E20 SMOS was lowered to the surface on 13 OCT 1999 between 1003 and 1015 GMT 
while counterweights were installed.  All wind speed and direction are incorrect 
during this period.

• Raw data stream - documentation not supported

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

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

• Raw data stream - documentation not supported

• 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)

SGP/SMOS/E24 - E24 SMOS lowered to surface to install counterweights

The E24 SMOS was lowered to the surface on 13 OCT 1999 between 1345 and 1420 GMT 
while counterweights were installed.  All wind speed and direction data are incorrect 
during this period.

• Unit Vector Wind Direction(wdir)
• 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)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• 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)
• Unit Vector Wind Direction(wdir)

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

SGP/SMOS/E21 - Reprocess: Errors in Global Metadata

The netcdf files for SMOS.E21 incorrectly list sensor heights at E21, Okmulgee
as being 10m for winds, 2m for temp, RH and vapor pressure, and 1m for barometric
pressure.  The Okmulgee site is a forested site and these sensors are mounted on
a tower above the canopy.  The actual sensor heights are 18m for winds, 17m for
temp, RH and vapor pressure, and 19m for barometric pressure which corresponds
to 3.7m, 2.7m, and 4.7m above average canopy height respectively.

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

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

SGP/SMOS/E15 - 6-month Calibration Checks

During the time periods specified, the SMOS.E15 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.

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

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

• Humidity, relative(rh)
• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• 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)

SGP/SMOS/E20 - 6-month Calibration Checks

During the time periods specified, the SMOS.E20 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.

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

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

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

SGP/SMOS/E21 - 6-month Calibration Checks

During the time periods specified, the SMOS.E21 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)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Wind Speed(min_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Relative Humidity(time_min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Time of Maximum Temperature(time_max_temp)

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

SGP/SMOS/E24 - 6-month Calibration Checks

During the time periods specified, the SMOS.E24 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(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• sd_vap_pres
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_bar_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• 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 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)

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

SGP/SMOS/E21 - Temp and RH data highly suspect

Temp and RH data noisy and fluctuating.  All variable and derived variables should be 
scrutinized before considering the data useful.

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

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

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

SGP/SMOS/E20 - Reprocess: Wind speed calibrations

EDITOR'S NOTE:  The earliest portion of the time period 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 by special request.  The actual period of time covered
by this DQR is 930403-930819.1430.


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

SGP/SMOS/E20 - Tower lowered for work on instrumentation

Due to tower being lowered to work on instrumentation between
1700 and 1830 GMT on 03 NOV 94, all temperature and humidity
data are questionable.

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

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

SGP/SMOS/E20 - Data questionable/missing due to low battery voltage

All data questionable or missing due to low battery voltage.
    Battery not changed due to a loss of AC power.

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

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

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

SGP/SMOS/E20 - Sensor replacement

Temperature and Humidity data incorrect or missing during sensor
    replacement.

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

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

SGP/SMOS/E24 - Questionable data during SIROS maintenance

SMOS tower was lowered for SIROS maintenance.

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

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

SGP/SMOS/E20 - Bad humidity data

The Relative Humidity sensor failed.  It appears to have operated
      intermittantly for the first few days of this period and then
      failed entirely.  The temperature portion of the probe appears to
      be unaffected.  The probe was replaced on 20 JUN 96.  The replacement
      probe reported unusually low values of relative humidity.  The probe
      was replaced again on 15 AUG 96 at 1700 GMT.

• 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
• Precipitation, total(precip)

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

SGP/SMOS/E20 - Incorrect data

The data for SMOS at E20 was all 9's or 0's for 1730 GMT
      on 8 NOV 96 for an unknown reason.

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

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

SGP/SMOS/E15 - Incorrect humidity data from E15 SMOS

For unknown reasons, the RH probe on the SMOS E15 failed and reported zero
relative humidities between approximately 1115 and 1830 GMT on 11 FEB 98.

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

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E15 - RH probe failure and replacement at E15

The SMOS RH probe at E15 failed again and reported zero RH's at approximately 
0120 GMT on 24 FEB 98. The probe was replaced the same day at approximately 
1610 GMT.

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

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E15 - SMOS temperature anomaly on 11 MAY 1998

For reasons unknown the E15, Ringwood OK, SMOS temperature measurements were
abnormally high and the relative humidity measurements were low between 1400
and 2300 GMT on 11 MAY 1998.

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

• Raw data stream - documentation not supported

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E15 - Incorrect SMOS temperatures at E15

The temperatures reported by the SMOS at E15 started drifting high at about 
1300 GMT on 1 JUN 1998 until reporting 72.6 C, and then the sensor failed.  
It started reporting correctly again at about 1930 GMT on 2 JUN 1998.  The 
humidity data reported during this period is either questionable or missing.
The cause of the drift and subsequent failure as well as the cause of recovery
are unknown.  The techs reported no problems during the bi-weekly check on
2 JUN 1998 at 1850 GMT.

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

• Raw data stream - documentation not supported

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E15 - Incorrect data during E15 SMOS repair

Temperature and humidity data are incorrect or missing due to a repair on the
E15 SMOS on 16 JUN 98 between 1400 and 1430 GMT.

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E15 - E15 SMOS down for tower replacement

The E15 SMOS was shut down from 11 MAY 1999 at 1400 GMT until 18 MAY 1999 at 1940 GMT 
while the tower was replaced.

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

• Raw data stream - documentation not supported

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

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

• Raw data stream - documentation not supported

SGP/SMOS/E20 - E20 SMOS down for tower replacement

The E20 SMOS was shut down from 22 APR 1999 at 1540 GMT until 6 MAY 1999 at 1945 GMT 
while the tower was replaced.

• Raw data stream - documentation not supported

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

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

• Raw data stream - documentation not supported

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

SGP/SMOS/E24 - E24 SMOS lowered to surface to install counterweights

The E24 SMOS was lowered to the surface on 13 OCT 1999 between 1345 and 1420 GMT 
while counterweights were installed.  All temperature and humidity data taken 
during this period are questionable.

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

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

• Raw data stream - documentation not supported

• Raw data stream - documentation not supported

SGP/SMOS/E20 - E20 SMOS lowered to surface to install counterweights

The E20 SMOS was lowered to the surface on 13 OCT 1999 between 1003 and 1015 GMT 
while counterweights were installed.  All temperature and humidity data are 
questionable during this period.

• Raw data stream - documentation not supported

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

• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• 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)
• Time of Maximum Vapor Pressure(time_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 maximum(max_rh)

• Raw data stream - documentation not supported

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