DQRs for Session: 109185 User:jsoonerCompleted: 11-30-2007

Data Quality Reports for Session: 109185 User: jsooner Completed: 11/30/2007

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020620.45	SGP/SMOS/E20 - Tower lowered for work on instrumentation	sgp1smosE20.a0, sgp30smosE20.a1
D040318.18	SGP/SMOS/E20 - 6-month Calibration Checks	sgp1440smosE20.a0, sgp1smosE20.a0, sgp30smosE20.a1
D940812.2	SGP/SMOS/E20 - Reprocess: Wind speed calibrations	sgp1smosE20.a0, sgp30smosE20.a1
D941109.1	SGP/SMOS/E20 - Tower lowered for work on instrumentation	sgp1smosE20.a0, sgp30smosE20.a1
D950509.5	SGP/SMOS/E20 - Data questionable/missing due to low battery voltage	sgp1440smosE20.a0, sgp1smosE20.a0, sgp30smosE20.a1
D951101.8	SGP/SMOS/E20 - Sensor replacement	sgp1smosE20.a0, sgp30smosE20.a1
D960911.4	SGP/SMOS/E20 - Bad humidity data	sgp1smosE20.a0, sgp30smosE20.a1
D961210.17	SGP/SMOS/E20 - Incorrect data	sgp1smosE20.a0, sgp30smosE20.a1

DQRID : D020620.45

Start Date	Start Time	End Date	End Time
11/03/1995	1700	11/03/1995	1830

Subject:	SGP/SMOS/E20 - Tower lowered for work on instrumentation
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	Due to tower being lowered to work on instrumentation between 1700 and 1830 GMT on 03 NOV 94, all wind data are incorrect.
Measurements:	sgp1smosE20.a0: Unit Vector Wind Direction(wdir) Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va) Standard Deviation of wind direction(sd_deg) sgp30smosE20.a1: Wind Speed (vector averaged)(wspd_va) Standard Deviation of Wind Speed(sd_wspd) Unit Vector Wind Direction(wdir) Mean Wind Speed(wspd) Standard Deviation of wind direction(sd_deg)

Back To Table of Contents

DQRID : D040318.18

Start Date	Start Time	End Date	End Time
06/09/1994	1624	06/09/1994	1824
11/25/1994	1622	11/25/1994	1822
04/27/1995	1437	04/27/1995	1637
10/13/1995	1300	10/13/1995	1520
04/10/1996	1629	04/10/1996	1900
10/23/1996	1705	10/23/1996	1905
04/09/1997	1850	04/09/1997	2300
05/21/1997	1420	05/21/1997	1620
10/22/1997	1255	10/22/1997	1455
05/20/1998	1300	05/20/1998	1900
11/20/1998	1739	11/20/1998	1939
03/24/1999	1409	03/24/1999	1609
04/07/1999	1515	04/07/1999	1620
12/15/1999	2011	12/15/1999	2045
05/17/2000	1855	05/17/2000	1940
10/04/2000	1922	10/04/2000	2000

Subject:	SGP/SMOS/E20 - 6-month Calibration Checks
DataStreams:	sgp1440smosE20.a0, sgp1smosE20.a0, sgp30smosE20.a1
Description:	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.
Measurements:	sgp1smosE20.a0: Vapor Pressure (kiloPascals)(vap_pres) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) Barometric pressure(bar_pres) Wind Speed (vector averaged)(wspd_va) Beam 0 Temperature(temp) sgp30smosE20.a1: Wind Speed (vector averaged)(wspd_va) Standard Deviation of Vapor Pressure(sd_vap_pres) Mean Wind Speed(wspd) Standard Deviation of Barometric Pressure(sd_bar_pres) Standard Deviation of wind direction(sd_deg) Beam 0 Temperature(temp) Standard Deviation of Air Temperature(sd_temp) Barometric pressure(bar_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Wind Speed(sd_wspd) Unit Vector Wind Direction(wdir) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE20.a0: Maximum Temperature(max_temp) Time of Maximum Wind Speed(time_max_wspd) Time of Maximum Temperature(time_max_temp) Maximum Vapor Pressure(max_vap_pres) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Minimum Barometric Pressure(time_min_bar_pres) Minimum Temperature(min_temp) Minimum of Wind speed(min_wspd) Time of Minimum Wind Speed(time_min_wspd) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Barometric Pressure(time_max_bar_pres) Time of Minimum Temperature(time_min_temp) Minimum Barometric Pressure(min_bar_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) maximum wind speed (gusts)(max_wspd) Maximum Barometric Pressure(max_bar_pres) Maximum Relative Humidity(max_rh) Minimum Relative Humidity(min_rh) Minimum Vapor Pressure(min_vap_pres)

Back To Table of Contents

DQRID : D940812.2

Start Date	Start Time	End Date	End Time
07/08/1993	1431	08/19/1993	1430

Subject:	SGP/SMOS/E20 - Reprocess: Wind speed calibrations
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	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.
Measurements:	sgp1smosE20.a0: Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va) sgp30smosE20.a1: Wind Speed (vector averaged)(wspd_va) Standard Deviation of Wind Speed(sd_wspd) Mean Wind Speed(wspd)

Back To Table of Contents

DQRID : D941109.1

Start Date	Start Time	End Date	End Time
11/03/1995	1700	11/03/1995	1830

Subject:	SGP/SMOS/E20 - Tower lowered for work on instrumentation
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	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.
Measurements:	sgp1smosE20.a0: Beam 0 Temperature(temp) Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp30smosE20.a1: Beam 0 Temperature(temp) Standard Deviation of Vapor Pressure(sd_vap_pres) Standard Deviation of Air Temperature(sd_temp) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Relative Humidity(sd_rh) Relative humidity inside the instrument enclosure(rh)

Back To Table of Contents

DQRID : D950509.5

Start Date	Start Time	End Date	End Time
03/21/1995	1330	03/30/1995	1700

Subject:	SGP/SMOS/E20 - Data questionable/missing due to low battery voltage
DataStreams:	sgp1440smosE20.a0, sgp1smosE20.a0, sgp30smosE20.a1
Description:	All data questionable or missing due to low battery voltage. Battery not changed due to a loss of AC power.
Measurements:	sgp1smosE20.a0: Time offset of tweaks from base_time(time_offset) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of wind direction(sd_deg) base time(base_time) Wind Speed (vector averaged)(wspd_va) Dummy altitude for Zeb(alt) lon(lon) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) Mean Wind Speed(wspd) Barometric pressure(bar_pres) Hourly precipitation(precip) Beam 0 Temperature(temp) lat(lat) sgp30smosE20.a1: lat(lat) Standard Deviation of Barometric Pressure(sd_bar_pres) lon(lon) Standard Deviation of wind direction(sd_deg) Batter Voltage(vbat) Snow Depth Sensor(snow_sen) Barometric pressure(bar_pres) Unit Vector Wind Direction(wdir) Vapor Pressure (kiloPascals)(vap_pres) Snow Depth(snow) Wind Speed (vector averaged)(wspd_va) Standard Deviation of Vapor Pressure(sd_vap_pres) Mean Wind Speed(wspd) base time(base_time) Beam 0 Temperature(temp) Standard Deviation of Air Temperature(sd_temp) Time offset of tweaks from base_time(time_offset) Relative humidity inside the instrument enclosure(rh) Dummy altitude for Zeb(alt) Standard Deviation of Wind Speed(sd_wspd) Hourly precipitation(precip) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE20.a0: Maximum Temperature(max_temp) Time of Maximum Wind Speed(time_max_wspd) Maximum Vapor Pressure(max_vap_pres) Time of Minimum Barometric Pressure(time_min_bar_pres) Minimum Snow Depth(min_snow_depth) lat(lat) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Barometric Pressure(time_max_bar_pres) Time of Minimum Temperature(time_min_temp) Minimum Barometric Pressure(min_bar_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) Time of Maximum Snow Depth(time_max_snow) Maximum Barometric Pressure(max_bar_pres) Minimum Vapor Pressure(min_vap_pres) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Time offset of tweaks from base_time(time_offset) Minimum Temperature(min_temp) Minimum of Wind speed(min_wspd) Time of Minimum Wind Speed(time_min_wspd) base time(base_time) lon(lon) Maximum Snow Depth(max_snow) Time of Minimum Snow Depth(time_min_snow) maximum wind speed (gusts)(max_wspd) Dummy altitude for Zeb(alt) Maximum Relative Humidity(max_rh) Minimum Relative Humidity(min_rh)

Back To Table of Contents

DQRID : D951101.8

Start Date	Start Time	End Date	End Time
10/26/1995	1532	10/26/1995	1600

Subject:	SGP/SMOS/E20 - Sensor replacement
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	Temperature and Humidity data incorrect or missing during sensor replacement.
Measurements:	sgp1smosE20.a0: Beam 0 Temperature(temp) Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp30smosE20.a1: Beam 0 Temperature(temp) Standard Deviation of Vapor Pressure(sd_vap_pres) Standard Deviation of Air Temperature(sd_temp) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Relative Humidity(sd_rh) Relative humidity inside the instrument enclosure(rh)

Back To Table of Contents

DQRID : D960911.4

Start Date	Start Time	End Date	End Time
06/03/1996	2230	08/15/1996	1700

Subject:	SGP/SMOS/E20 - Bad humidity data
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	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.
Measurements:	sgp1smosE20.a0: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp30smosE20.a1: Hourly precipitation(precip) Standard Deviation of Vapor Pressure(sd_vap_pres) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Relative Humidity(sd_rh) Relative humidity inside the instrument enclosure(rh)

Back To Table of Contents

DQRID : D961210.17

Start Date	Start Time	End Date	End Time
11/08/1996	1701	11/08/1996	1730

Subject:	SGP/SMOS/E20 - Incorrect data
DataStreams:	sgp1smosE20.a0, sgp30smosE20.a1
Description:	The data for SMOS at E20 was all 9's or 0's for 1730 GMT on 8 NOV 96 for an unknown reason.
Measurements:	sgp1smosE20.a0: Time offset of tweaks from base_time(time_offset) Vapor Pressure (kiloPascals)(vap_pres) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) base time(base_time) Barometric pressure(bar_pres) Hourly precipitation(precip) Dummy altitude for Zeb(alt) Wind Speed (vector averaged)(wspd_va) Beam 0 Temperature(temp) lat(lat) lon(lon) sgp30smosE20.a1: Wind Speed (vector averaged)(wspd_va) Standard Deviation of Vapor Pressure(sd_vap_pres) Mean Wind Speed(wspd) base time(base_time) lat(lat) Standard Deviation of Barometric Pressure(sd_bar_pres) lon(lon) Standard Deviation of wind direction(sd_deg) Beam 0 Temperature(temp) Batter Voltage(vbat) Standard Deviation of Air Temperature(sd_temp) Snow Depth Sensor(snow_sen) Time offset of tweaks from base_time(time_offset) Barometric pressure(bar_pres) Relative humidity inside the instrument enclosure(rh) Dummy altitude for Zeb(alt) Standard Deviation of Wind Speed(sd_wspd) Hourly precipitation(precip) Unit Vector Wind Direction(wdir) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Relative Humidity(sd_rh) Snow Depth(snow)

Back To Table of Contents

END OF DATA