DQRs for Session: 111781 User:lyle.freesCompleted: 05-01-2008

Data Quality Reports for Session: 111781 User: lyle.frees Completed: 05/01/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020909.5	SGP/SMOS/E4 - Snow depth sensor removed; data reported as missing	sgp1440smosE4.a1, sgp30smosE4.a1, sgp30smosE4.b1
D031015.1	SGP/SMOS/E4 - Sensor failure--RH data bad	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
D031106.3	SGP/SMOS/E4 - Sensor failure--RH data incorrect	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D040130.3	SGP/SMOS/E4 - Sensor failure	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D040212.1	SGP/SMOS/E4 - RH sensor intermittent	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
D040212.2	SGP/SMOS/E4 - RH sensor intermittent	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D040316.2	SGP/SMOS/E4 - 6-month Calibration Checks	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
D040316.3	SGP/SMOS/E4 - 6-month Calibration Checks	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D040427.1	SGP/SMOS/E4 - RH Sensor failure	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D050131.2	SGP/SMOS/E4 - Ice storm froze wind speed sensor	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D050131.3	SGP/SMOS/E4 - Missing data due to ice storm	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D050209.3	SGP/SMOS/E4 - Wind Data Suspect	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D050421.10	SGP/SMOS/E4 - Reprocess: Wind direction offset	sgp1smosE4.b1, sgp30smosE4.b1
D080116.3	SGP/SMOS/E4 - Wind Monitor Data Incorrect Due to Icing	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
D080222.4	SGP/SMOS - Snowfall caused delayed count of precip	sgp1smosE1.b1, sgp1smosE11.b1, sgp1smosE13.b1, sgp1smosE15.b1, sgp1smosE20.b1, sgp1smosE21.b1, sgp1smosE24.b1, sgp1smosE27.b1, sgp1smosE3.b1, sgp1smosE4.b1, sgp1smosE5.b1, sgp1smosE6.b1, sgp1smosE7.b1, sgp1smosE8.b1, sgp1smosE9.b1, sgp30smosE1.b1, sgp30smosE11.b1, sgp30smosE13.b1, sgp30smosE15.b1, sgp30smosE20.b1, sgp30smosE21.b1, sgp30smosE24.b1, sgp30smosE27.b1, sgp30smosE3.b1, sgp30smosE4.b1, sgp30smosE5.b1, sgp30smosE6.b1, sgp30smosE7.b1, sgp30smosE8.b1, sgp30smosE9.b1
D080306.3	SGP/SMOS/E4 - Incorrect Offset for Wind Directon	sgp1smosE4.b1, sgp30smosE4.b1

DQRID : D020909.5

Start Date	Start Time	End Date	End Time
08/14/2002	1430	07/17/2003	2359

Subject:	SGP/SMOS/E4 - Snow depth sensor removed; data reported as missing
DataStreams:	sgp1440smosE4.a1, sgp30smosE4.a1, sgp30smosE4.b1
Description:	The snow depth sensor was removed from service. The program was changed so that -9999 is entered into the datastream.
Measurements:	sgp30smosE4.b1: Snow Depth(snow) Snow Depth Sensor(snow_sen) sgp1440smosE4.a1: Minimum Snow Depth(min_snow_depth) Time of Maximum Snow Depth(time_max_snow) Time of Minimum Snow Depth(time_min_snow) Maximum Snow Depth(max_snow) sgp30smosE4.a1: Snow Depth Sensor(snow_sen) Snow Depth(snow)

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DQRID : D031015.1

Start Date	Start Time	End Date	End Time
09/22/2003	0447	10/12/2003	2359

Subject:	SGP/SMOS/E4 - Sensor failure--RH data bad
DataStreams:	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
Description:	RH readings are questionable during high moisture conditions. Readings frequently are above tolerance (104%) during saturated conditions. During non-saturated conditions the RH% readings are fine.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp1440smosE4.a1: Time of Minimum Relative Humidity(time_min_rh) Maximum Relative Humidity(max_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Time of Maximum Vapor Pressure(time_max_vap_pres) Maximum Vapor Pressure(max_vap_pres) sgp30smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp1smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh)

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DQRID : D031106.3

Start Date	Start Time	End Date	End Time
10/13/2003	0000	10/27/2003	1655

Subject:	SGP/SMOS/E4 - Sensor failure--RH data incorrect
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	RH readings are questionable during high moisture conditions. Readings frequently are above tolerance (104%) during saturated conditions. During non-saturated conditions the RH% readings are fine.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh) sgp1440smosE4.b1: Minimum Vapor Pressure(min_vap_pres) Maximum Relative Humidity(max_rh) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) Minimum Relative Humidity(min_rh)

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DQRID : D040130.3

Start Date	Start Time	End Date	End Time
01/17/2004	1545	01/19/2004	1730

Subject:	SGP/SMOS/E4 - Sensor failure
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	RH values drop to zero during most of the period between 01/17 and 01/19. Sensor was replaced.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Vapor Pressure(sd_vap_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE4.b1: Maximum Relative Humidity(max_rh) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Minimum Vapor Pressure(min_vap_pres) Maximum Vapor Pressure(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres)

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DQRID : D040212.1

Start Date	Start Time	End Date	End Time
10/02/2003	1136	10/12/2003	2359

Subject:	SGP/SMOS/E4 - RH sensor intermittent
DataStreams:	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
Description:	RH sensor intermittently failing during entire period.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Vapor Pressure(sd_vap_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE4.a1: Time of Minimum Relative Humidity(time_min_rh) Maximum Relative Humidity(max_rh) Time of Maximum Relative Humidity(time_max_rh) Minimum Vapor Pressure(min_vap_pres) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Time of Maximum Vapor Pressure(time_max_vap_pres) Maximum Vapor Pressure(max_vap_pres) sgp30smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Vapor Pressure(sd_vap_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Relative Humidity(sd_rh) sgp1smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Relative humidity inside the instrument enclosure(rh)

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DQRID : D040212.2

Start Date	Start Time	End Date	End Time
10/13/2003	0000	10/22/2003	1648

Subject:	SGP/SMOS/E4 - RH sensor intermittent
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	RH sensor intermittently failing during entire period. Sensor replaced 10/22/2003 @ 16:48 GMT.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Vapor Pressure(sd_vap_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE4.b1: Maximum Relative Humidity(max_rh) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Minimum Vapor Pressure(min_vap_pres) Maximum Vapor Pressure(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres)

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DQRID : D040316.2

Start Date	Start Time	End Date	End Time
04/25/2001	1410	04/25/2001	1435
11/07/2001	1520	11/07/2001	1720
05/22/2002	1434	05/22/2002	1512
11/06/2002	1625	11/06/2002	1700
05/07/2003	1605	05/07/2003	1635

Subject:	SGP/SMOS/E4 - 6-month Calibration Checks
DataStreams:	sgp1440smosE4.a1, sgp1smosE4.a1, sgp1smosE4.b1, sgp30smosE4.a1, sgp30smosE4.b1
Description:	During the time periods specified, the SMOS.E4 tower was lowered for 6-month Calibration Checks. During these times wind data are incorrect and temperature and humidity data may be incorrect. Note, exact times when tower was down or maintenance was being performed is sometimes unknown. Users should use the remaining data from these days with caution.
Measurements:	sgp1smosE4.b1: Beam 0 Temperature(temp) Mean Wind Speed(wspd) barometric pressure(bar_pres) Standard Deviation of wind direction(sd_deg) Wind Speed (vector averaged)(wspd_va) Vapor Pressure (kiloPascals)(vap_pres) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Air Temperature(sd_temp) barometric pressure(bar_pres) Relative humidity inside the instrument enclosure(rh) Wind Speed (vector averaged)(wspd_va) Unit Vector Wind Direction(wdir) Standard Deviation of Vapor Pressure(sd_vap_pres) Standard Deviation of Wind Speed(sd_wspd) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) Beam 0 Temperature(temp) Standard Deviation of Relative Humidity(sd_rh) Standard Deviation of Barometric Pressure(sd_bar_pres) sgp1440smosE4.a1: Maximum Relative Humidity(max_rh) Minimum Barometric Pressure(min_bar_pres) Minimum Temperature(min_temp) Time of Maximum Barometric Pressure(time_max_bar_pres) Time of Minimum Relative Humidity(time_min_rh) maximum wind speed (gusts)(max_wspd) Maximum Barometric Pressure(max_bar_pres) Time of Minimum Temperature(time_min_temp) Time of Maximum Temperature(time_max_temp) Maximum Vapor Pressure(max_vap_pres) Minimum of Wind speed(min_wspd) Maximum Temperature(max_temp) Time of Maximum Wind Speed(time_max_wspd) Time of Minimum Wind Speed(time_min_wspd) Time of Maximum Relative Humidity(time_max_rh) Minimum Vapor Pressure(min_vap_pres) Time of Minimum Barometric Pressure(time_min_bar_pres) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp30smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of wind direction(sd_deg) Standard Deviation of Vapor Pressure(sd_vap_pres) Standard Deviation of Relative Humidity(sd_rh) barometric pressure(bar_pres) Standard Deviation of Barometric Pressure(sd_bar_pres) Beam 0 Temperature(temp) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Wind Speed(sd_wspd) Mean Wind Speed(wspd) Standard Deviation of Air Temperature(sd_temp) Wind Speed (vector averaged)(wspd_va) sgp1smosE4.a1: Vapor Pressure (kiloPascals)(vap_pres) Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va) Relative humidity inside the instrument enclosure(rh) Unit Vector Wind Direction(wdir) Standard Deviation of wind direction(sd_deg) Beam 0 Temperature(temp) barometric pressure(bar_pres)

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DQRID : D040316.3

Start Date	Start Time	End Date	End Time
10/22/2003	1455	10/22/2003	1655
04/21/2004	1529	04/21/2004	1550
10/20/2004	1515	10/20/2004	1535
04/06/2005	1520	04/06/2005	1600
11/17/2005	1700	11/17/2005	1729
04/19/2006	1553	04/19/2006	1625
10/04/2006	1655	10/04/2006	1745
04/04/2007	1737	04/04/2007	1809
10/17/2007	1652	10/17/2007	1727

Subject:	SGP/SMOS/E4 - 6-month Calibration Checks
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	During the time periods specified, the SMOS.E4 tower was lowered for 6-month Calibration Checks. During these times wind data are incorrect and temperature and humidity data may be incorrect. Note, exact times when tower was down or maintenance was being performed is sometimes unknown. Users should use the remaining data from these days with caution. Calibration results are available from the OMIS database at http://www.ops.sgp.arm.gov:591/smos6cal/default.htm To view all 6-month calibration reports leave the date time entry blank.
Measurements:	sgp1smosE4.b1: Beam 0 Temperature(temp) Mean Wind Speed(wspd) Standard Deviation of wind direction(sd_deg) Wind Speed (vector averaged)(wspd_va) Vapor Pressure (kiloPascals)(vap_pres) barometric pressure(bar_pres) Unit Vector Wind Direction(wdir) Relative humidity inside the instrument enclosure(rh) sgp1440smosE4.b1: Minimum Barometric Pressure(min_bar_pres) Maximum Relative Humidity(max_rh) maximum wind speed (gusts)(max_wspd) Time of Minimum Relative Humidity(time_min_rh) Time of Minimum Temperature(time_min_temp) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Maximum Barometric Pressure(time_max_bar_pres) Time of Minimum Wind Speed(time_min_wspd) Minimum Vapor Pressure(min_vap_pres) Time of Maximum Wind Speed(time_max_wspd) Maximum Vapor Pressure(max_vap_pres) Time of Minimum Barometric Pressure(time_min_bar_pres) Maximum Temperature(max_temp) Time of Maximum Relative Humidity(time_max_rh) Minimum of Wind speed(min_wspd) Time of Maximum Temperature(time_max_temp) Minimum Relative Humidity(min_rh) Minimum Temperature(min_temp) Maximum Barometric Pressure(max_bar_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp30smosE4.b1: Unit Vector Wind Direction(wdir) Standard Deviation of Vapor Pressure(sd_vap_pres) Standard Deviation of Wind Speed(sd_wspd) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Air Temperature(sd_temp) Beam 0 Temperature(temp) barometric pressure(bar_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Barometric Pressure(sd_bar_pres) Standard Deviation of Relative Humidity(sd_rh) Wind Speed (vector averaged)(wspd_va)

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DQRID : D040427.1

Start Date	Start Time	End Date	End Time
04/22/2004	1631	05/06/2004	1531

Subject:	SGP/SMOS/E4 - RH Sensor failure
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	The RH sensor at this site dropped anomalously to zero on 4/21, and was consistently 25% lower than EBBR RH readings on 4/23. Sensor was replaced 5/6.
Measurements:	sgp1smosE4.b1: Relative humidity inside the instrument enclosure(rh) Vapor Pressure (kiloPascals)(vap_pres) sgp30smosE4.b1: Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Vapor Pressure(sd_vap_pres) Relative humidity inside the instrument enclosure(rh) Standard Deviation of Relative Humidity(sd_rh) sgp1440smosE4.b1: Maximum Relative Humidity(max_rh) Time of Minimum Relative Humidity(time_min_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Vapor Pressure(time_min_vap_pres) Minimum Relative Humidity(min_rh) Minimum Vapor Pressure(min_vap_pres) Maximum Vapor Pressure(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres)

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DQRID : D050131.2

Start Date	Start Time	End Date	End Time
01/03/2005	1030	01/05/2005	0202

Subject:	SGP/SMOS/E4 - Ice storm froze wind speed sensor
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	Wind speed sensor frozen or affected by ice storm during the period specified.
Measurements:	sgp1smosE4.b1: Wind Speed (vector averaged)(wspd_va) Mean Wind Speed(wspd) sgp30smosE4.b1: Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va) sgp1440smosE4.b1: Time of Maximum Wind Speed(time_max_wspd) maximum wind speed (gusts)(max_wspd) Minimum of Wind speed(min_wspd) Time of Minimum Wind Speed(time_min_wspd)

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DQRID : D050131.3

Start Date	Start Time	End Date	End Time
01/05/2005	0202	01/12/2005	0040

Subject:	SGP/SMOS/E4 - Missing data due to ice storm
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	Data are missing due to a severe ice storm.
Measurements:	sgp1smosE4.b1: Beam 0 Temperature(temp) lat(lat) Time offset of tweaks from base_time(time_offset) Mean Wind Speed(wspd) base time(base_time) barometric pressure(bar_pres) Hourly precipitation(precip) Standard Deviation of wind direction(sd_deg) Wind Speed (vector averaged)(wspd_va) Vapor Pressure (kiloPascals)(vap_pres) Unit Vector Wind Direction(wdir) Dummy altitude for Zeb(alt) Relative humidity inside the instrument enclosure(rh) lon(lon) sgp30smosE4.b1: Time offset of tweaks from base_time(time_offset) lon(lon) Vapor Pressure (kiloPascals)(vap_pres) Standard Deviation of Air Temperature(sd_temp) Hourly precipitation(precip) Snow Depth Sensor(snow_sen) barometric pressure(bar_pres) Relative humidity inside the instrument enclosure(rh) Dummy altitude for Zeb(alt) Wind Speed (vector averaged)(wspd_va) Unit Vector Wind Direction(wdir) Snow Depth(snow) Standard Deviation of Vapor Pressure(sd_vap_pres) Batter Voltage(vbat) Standard Deviation of Wind Speed(sd_wspd) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) base time(base_time) Beam 0 Temperature(temp) Standard Deviation of Relative Humidity(sd_rh) Standard Deviation of Barometric Pressure(sd_bar_pres) lat(lat) sgp1440smosE4.b1: Time offset of tweaks from base_time(time_offset) Maximum Relative Humidity(max_rh) Time of Minimum Relative Humidity(time_min_rh) Maximum Snow Depth(max_snow) Time of Minimum Wind Speed(time_min_wspd) Minimum Vapor Pressure(min_vap_pres) Time of Maximum Relative Humidity(time_max_rh) Minimum of Wind speed(min_wspd) Time of Maximum Temperature(time_max_temp) Minimum Relative Humidity(min_rh) lon(lon) Maximum Barometric Pressure(max_bar_pres) lat(lat) Minimum Barometric Pressure(min_bar_pres) maximum wind speed (gusts)(max_wspd) Time of Minimum Temperature(time_min_temp) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Maximum Barometric Pressure(time_max_bar_pres) Time of Maximum Wind Speed(time_max_wspd) time(time) Time of Maximum Snow Depth(time_max_snow) Maximum Vapor Pressure(max_vap_pres) Time of Minimum Barometric Pressure(time_min_bar_pres) Maximum Temperature(max_temp) Minimum Snow Depth(min_snow_depth) base time(base_time) Time of Minimum Snow Depth(time_min_snow) Minimum Temperature(min_temp) Dummy altitude for Zeb(alt) Time of Maximum Vapor Pressure(time_max_vap_pres)

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DQRID : D050209.3

Start Date	Start Time	End Date	End Time
01/03/2005	0000	02/06/2005	2359

Subject:	SGP/SMOS/E4 - Wind Data Suspect
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	Wind speed and direction data suspect during time period due to icing.
Measurements:	sgp1smosE4.b1: Unit Vector Wind Direction(wdir) Mean Wind Speed(wspd) Standard Deviation of wind direction(sd_deg) Wind Speed (vector averaged)(wspd_va) sgp1440smosE4.b1: maximum wind speed (gusts)(max_wspd) Minimum of Wind speed(min_wspd) Time of Minimum Wind Speed(time_min_wspd) Time of Maximum Wind Speed(time_max_wspd) sgp30smosE4.b1: Unit Vector Wind Direction(wdir) Standard Deviation of Wind Speed(sd_wspd) Standard Deviation of wind direction(sd_deg) Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va)

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DQRID : D050421.10

Start Date	Start Time	End Date	End Time
04/01/2001	0000	03/09/2005	1739

Subject:	SGP/SMOS/E4 - Reprocess: Wind direction offset
DataStreams:	sgp1smosE4.b1, sgp30smosE4.b1
Description:	When the SGP.E4 SMOS tower was installed it was not aligned properly resulting in a 7 degree offset. On 3/9/05, the datalogger program was modifed to correct for this offset.
Measurements:	sgp1smosE4.b1: Unit Vector Wind Direction(wdir) sgp30smosE4.b1: Unit Vector Wind Direction(wdir)

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DQRID : D080116.3

Start Date	Start Time	End Date	End Time
12/10/2007	2324	12/11/2007	0559

Subject:	SGP/SMOS/E4 - Wind Monitor Data Incorrect Due to Icing
DataStreams:	sgp1440smosE4.b1, sgp1smosE4.b1, sgp30smosE4.b1
Description:	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.
Measurements:	sgp1smosE4.b1: Wind Speed (vector averaged)(wspd_va) Unit Vector Wind Direction(wdir) Mean Wind Speed(wspd) sgp1440smosE4.b1: Time of Maximum Wind Speed(time_max_wspd) maximum wind speed (gusts)(max_wspd) Minimum of Wind speed(min_wspd) Time of Minimum Wind Speed(time_min_wspd) sgp30smosE4.b1: Unit Vector Wind Direction(wdir) Standard Deviation of Wind Speed(sd_wspd) Mean Wind Speed(wspd) Wind Speed (vector averaged)(wspd_va)

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DQRID : D080222.4

Start Date	Start Time	End Date	End Time
01/31/2008	0000	02/02/2008	2000

Subject:	SGP/SMOS - Snowfall caused delayed count of precip
DataStreams:	sgp1smosE1.b1, sgp1smosE11.b1, sgp1smosE13.b1, sgp1smosE15.b1, sgp1smosE20.b1, sgp1smosE21.b1, sgp1smosE24.b1, sgp1smosE27.b1, sgp1smosE3.b1, sgp1smosE4.b1, sgp1smosE5.b1, sgp1smosE6.b1, sgp1smosE7.b1, sgp1smosE8.b1, sgp1smosE9.b1, sgp30smosE1.b1, sgp30smosE11.b1, sgp30smosE13.b1, sgp30smosE15.b1, sgp30smosE20.b1, sgp30smosE21.b1, sgp30smosE24.b1, sgp30smosE27.b1, sgp30smosE3.b1, sgp30smosE4.b1, sgp30smosE5.b1, sgp30smosE6.b1, sgp30smosE7.b1, sgp30smosE8.b1, sgp30smosE9.b1
Description:	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.
Measurements:	sgp1smosE24.b1: Hourly precipitation(precip) sgp1smosE21.b1: Hourly precipitation(precip) sgp30smosE7.b1: Hourly precipitation(precip) sgp1smosE27.b1: Hourly precipitation(precip) sgp1smosE7.b1: Hourly precipitation(precip) sgp30smosE15.b1: Hourly precipitation(precip) sgp30smosE20.b1: Hourly precipitation(precip) sgp1smosE9.b1: Hourly precipitation(precip) sgp1smosE4.b1: Hourly precipitation(precip) sgp30smosE3.b1: Hourly precipitation(precip) sgp1smosE11.b1: Hourly precipitation(precip) sgp30smosE27.b1: Hourly precipitation(precip) sgp1smosE3.b1: Hourly precipitation(precip) sgp30smosE4.b1: Hourly precipitation(precip) sgp30smosE8.b1: Hourly precipitation(precip) sgp1smosE8.b1: Hourly precipitation(precip) sgp30smosE9.b1: Hourly precipitation(precip) sgp1smosE13.b1: Hourly precipitation(precip) sgp30smosE11.b1: Hourly precipitation(precip) sgp1smosE1.b1: Hourly precipitation(precip) sgp30smosE5.b1: Hourly precipitation(precip) sgp1smosE20.b1: Hourly precipitation(precip) sgp30smosE24.b1: Hourly precipitation(precip) sgp30smosE13.b1: Hourly precipitation(precip) sgp30smosE1.b1: Hourly precipitation(precip) sgp1smosE6.b1: Hourly precipitation(precip) sgp30smosE6.b1: Hourly precipitation(precip) sgp1smosE15.b1: Hourly precipitation(precip) sgp30smosE21.b1: Hourly precipitation(precip) sgp1smosE5.b1: Hourly precipitation(precip)

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DQRID : D080306.3

Start Date	Start Time	End Date	End Time
03/09/2005	1739	02/21/2007	1737

Subject:	SGP/SMOS/E4 - Incorrect Offset for Wind Directon
DataStreams:	sgp1smosE4.b1, sgp30smosE4.b1
Description:	An incorrect offset of 7 degrees was subtracted from the wind direction to correct for misalignment of the towers to true north. The wind direction data may be corrected but the vector averaged wind speed cannot. Subsequent audits have highlighted problems with past measurements of tower alignments. All corrections to wind direction are being removed and Users are directed to view the Instrument Handbook for a table listing all tower alignment deviations from true north. Users can adjust the data at their discretion.
Measurements:	sgp1smosE4.b1: Wind Speed (vector averaged)(wspd_va) Unit Vector Wind Direction(wdir) sgp30smosE4.b1: Unit Vector Wind Direction(wdir) Wind Speed (vector averaged)(wspd_va)

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END OF DATA