DQRs for Session: 154268 User:jsong52Completed: 11-15-2013

Data Quality Reports for Session: 154268 User: jsong52 Completed: 11/15/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D001011.17	SGP/TWR/C1 - SE-side RH and Vapor Pressure	sgp30twr10xC1.b1, sgp30twr10xC1.a1, sgp1twr10xC1.a1, sgp1twr10xC1.b1
D001128.5	SGP/TWR/C1 - Temperature probe incorrectly configured	sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
D001207.17	SGP/TWR/C1 - SE-side 25m Incorrect	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
D001207.20	SGP/TWR/C1 - SE-side 25m data incorrect	sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1
D001207.23	SGP/TWR/C1 - SE-side 60m data incorrect	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
D001207.9	SGP/TWR/C1 - West-side 25m and 60m data incorrect.	sgp30twr25mC1.b1, sgp30twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1
D021105.2	SGP/TWR/C1 - SE-side 60m RH and VP Biased High	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
D030110.7	SGP/TWR/C1 - Tower 60m SE Temperature Flat	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
D030415.9	SGP/TWR/C1 - West-side 25m data incorrect due to low battery	sgp1twr25mC1.b1, sgp30twr25mC1.a1, sgp30twr25mC1.b1
D040225.10	SGP/TWR/C1 - Temperature Sensor Not Connected to Datalogger	sgp1twr10xC1.b1, sgp30twr10xC1.b1
D040304.30	SGP/TWR/C1 - Southeast Side RH Too Large	sgp1twr10xC1.b1, sgp30twr10xC1.b1
D040830.3	SGP/TWR/C1 - 25m SW Incorrect	sgp1twr25mC1.b1, sgp30twr25mC1.b1
D040830.4	SGP/TWR/C1 - Tower SE-side lowered for maintenance	sgp1twr10xC1.b1, sgp30twr10xC1.b1
D071217.2	SGP/TWR/C1 - Southeast Side (10X) Temperature and RH Spikes	sgp1twr10xC1.b1, sgp30twr10xC1.b1
D090930.1	SGP/TWR/C1 - 25m RH low	sgp1440twr25mC1.b1, sgp1twr25mC1.b1, sgp30twr25mC1.b1
D121017.3	SGP/TWR/C1 - Tower lowered for maintenance	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr10xC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr10xC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
D121017.4	SGP/TWR/C1 - West tower lowered for maintenance	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
D121019.2	SGP/TWR/C1 - 60m temps on SE tower suspect	sgp1twr10xC1.b1
D130116.6	SGP/TWR/C1 - Temp data suspect	sgp1twr25mC1.b1, sgp30twr25mC1.b1
D131031.3	SGP/TWR/C1 - T/RH/VP Incorrect at times	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr10xC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr10xC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
D980528.11	SGP/TWR/C1 - Tower SE-side lowered for maintenance	sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1
D990415.4	SGP/TWR/C1 - Missing data	sgp30twr25mC1.b1, sgp1440twr25mC1.b1, sgp1twr25mC1.b1
D990415.6	SGP/TWR/C1 - Missing data	sgp1twr60mC1.b1, sgp30twr60mC1.b1, sgp1440twr60mC1.b1
D990421.1	SGP/TWR/C1 - Missing data	sgp30twr10xC1.a1, sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1
D990607.1	SGP/TWR/C1 - W Side of Tower lowered for maintenance	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1

DQRID : D001011.17

Start Date	Start Time	End Date	End Time
09/19/2000	1852	09/21/2000	1803

Subject:	SGP/TWR/C1 - SE-side RH and Vapor Pressure
DataStreams:	sgp30twr10xC1.b1, sgp30twr10xC1.a1, sgp1twr10xC1.a1, sgp1twr10xC1.b1
Description:	The RH and vapor pressure measurements are incorrect.
Measurements:	sgp30twr10xC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sd_vap_pres_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_rh_25m sd_vap_pres_25m sd_rh_60m sgp1twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp30twr10xC1.b1: sd_vap_pres_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_rh_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_vap_pres_60m Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D001128.5

Start Date	Start Time	End Date	End Time
10/30/2000	1931	10/30/2000	2120

Subject:	SGP/TWR/C1 - Temperature probe incorrectly configured
DataStreams:	sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
Description:	Temperature and vapor pressure were incorrect because the excitation voltage for the temperature probe was incorrectly set.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp) sd_vap_pres sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sgp30twr60mC1.b1: 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) sgp1twr60mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp)

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DQRID : D001207.17

Start Date	Start Time	End Date	End Time
10/20/2000	1151	10/30/2000	1804

Subject:	SGP/TWR/C1 - SE-side 25m Incorrect
DataStreams:	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
Description:	Data for the 25m level was incorrect.
Measurements:	sgp30twr10xC1.a1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_temp_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) sd_rh_25m sd_vap_pres_25m sgp1twr10xC1.a1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp1twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) sgp30twr10xC1.b1: sd_vap_pres_25m sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_25m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m)

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DQRID : D001207.20

Start Date	Start Time	End Date	End Time
10/30/2000	1806	11/09/2000	2243

Subject:	SGP/TWR/C1 - SE-side 25m data incorrect
DataStreams:	sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1
Description:	The 25m level data was incorrect because of damage to and then repairs to the SE elevator 25m connection.
Measurements:	sgp30twr10xC1.a1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_temp_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) sd_rh_25m sd_vap_pres_25m sgp1twr10xC1.a1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp1twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) sgp30twr10xC1.b1: sd_vap_pres_25m sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_25m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m)

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DQRID : D001207.23

Start Date	Start Time	End Date	End Time
11/07/2000	1500	11/09/2000	2243

Subject:	SGP/TWR/C1 - SE-side 60m data incorrect
DataStreams:	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
Description:	SE-side 60m level data were incorrect during elevator repair.
Measurements:	sgp30twr10xC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sd_vap_pres_60m Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_temp_60m sd_rh_60m sgp1twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sgp30twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_60m sd_temp_60m sd_vap_pres_60m Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D001207.9

Start Date	Start Time	End Date	End Time
10/12/2000	1610	10/12/2000	1735

Subject:	SGP/TWR/C1 - West-side 25m and 60m data incorrect.
DataStreams:	sgp30twr25mC1.b1, sgp30twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1
Description:	Data at 25m and 60m levels were incorrect.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_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(temp) sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) sgp30twr60mC1.b1: Temperature, air(temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) Humidity, relative(rh) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sgp1twr60mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) Temperature, air(temp)

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DQRID : D021105.2

Start Date	Start Time	End Date	End Time
08/02/2002	1913	10/25/2002	1806

Subject:	SGP/TWR/C1 - SE-side 60m RH and VP Biased High
DataStreams:	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
Description:	The 60m SE-side RH was biased high when RH was > 65%. At saturation the 60m RH was sometimes higher than the West-side measurement by 7%.
Measurements:	sgp30twr10xC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sd_vap_pres_60m sd_rh_60m sgp1twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp30twr10xC1.b1: sd_rh_60m sd_vap_pres_60m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D030110.7

Start Date	Start Time	End Date	End Time
12/09/2002	0409	12/09/2002	0456
12/09/2002	0641	12/09/2002	0655
12/09/2002	1224	12/09/2002	1256
01/03/2003	0819	01/03/2003	1338
12/20/2002	1222	12/20/2002	1311
12/10/2002	0408	12/10/2002	0700
12/10/2002	0805	12/10/2002	0858
12/21/2002	0057	12/21/2002	0132
12/24/2002	0422	12/24/2002	0714
12/24/2002	1331	12/24/2002	1425
12/25/2002	2106	12/25/2002	2218
12/26/2002	1801	12/26/2002	1826
12/29/2002	0334	12/29/2002	0440
12/29/2002	0455	12/29/2002	0528
12/29/2002	0551	12/29/2002	0610
01/02/2003	1214	01/02/2003	1245

Subject:	SGP/TWR/C1 - Tower 60m SE Temperature Flat
DataStreams:	sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1, sgp30twr10xC1.b1
Description:	During these periods the Southeast side 60 m Temperature was unchanging (flat). This can occur for several consecutive minutes, but not for as long as occurred here. Therefore the Temperature and Vapor Pressure measurements are suspect.
Measurements:	sgp30twr10xC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sd_vap_pres_60m sd_rh_60m sgp1twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp30twr10xC1.b1: sd_rh_60m sd_vap_pres_60m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D030415.9

Start Date	Start Time	End Date	End Time
02/21/2003	2140	02/22/2003	1916
02/22/2003	2140	02/26/2003	1520

Subject:	SGP/TWR/C1 - West-side 25m data incorrect due to low battery
DataStreams:	sgp1twr25mC1.b1, sgp30twr25mC1.a1, sgp30twr25mC1.b1
Description:	A low battery voltage caused T, RH, and VP to be incorrect. Data may be missing from some of the second period because battery voltage dropped to zero at one point.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_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(temp) sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) sgp30twr25mC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Humidity, relative(rh) Temperature, air(temp) Temperature, air, 30-min intervals, standard deviation(sd_temp)

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DQRID : D040225.10

Start Date	Start Time	End Date	End Time
02/05/2004	1631	02/09/2004	1926

Subject:	SGP/TWR/C1 - Temperature Sensor Not Connected to Datalogger
DataStreams:	sgp1twr10xC1.b1, sgp30twr10xC1.b1
Description:	One of the southeast side 25 m Temperature sensor leads was pulled out from the CR10X datalogger terminal strip.
Measurements:	sgp1twr10xC1.b1: Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp30twr10xC1.b1: Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m)

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DQRID : D040304.30

Start Date	Start Time	End Date	End Time
08/15/2003	1345	02/10/2004	2310

Subject:	SGP/TWR/C1 - Southeast Side RH Too Large
DataStreams:	sgp1twr10xC1.b1, sgp30twr10xC1.b1
Description:	The T/RH probes installed on the 25 m and 60 m levels of the southeast side of the tower on 8/15/03 gave RH readings that were too large for RH above 65%. The difference between the west and southeast side RH was within the combined accuracies of the sensors up to about 80% RH. Above 80% RH the southeast side RH was much larger, with the difference increasing to 10% larger (or more) at 100% RH. The vapor pressure from the southeast side (calculated with RH) was also too large. The probes were replaced on 2/10/04 and the two sides of the tower now agree fairly well, with RH not exceeding 100% during saturation.
Measurements:	sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp30twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m)

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DQRID : D040830.3

Start Date	Start Time	End Date	End Time
08/05/2004	1526	09/16/2004	1615

Subject:	SGP/TWR/C1 - 25m SW Incorrect
DataStreams:	sgp1twr25mC1.b1, sgp30twr25mC1.b1
Description:	Wires were touching the fan inside the aspirator of the 25m SW level. This occurred during maintenance to instruments on the SW side on 8/05/04; vibration of the carriage probably jostled the wires loose. The temperature and relative humidity sensors were not adequately ventilated and therefore produced incorrect measurements of temperature, relative humidity, and vapor pressure.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) Humidity, relative, 30-min intervals, standard deviation(sd_rh) Temperature, air(temp) sd_vap_pres sgp1twr25mC1.b1: Temperature, air(temp) Humidity, relative(rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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DQRID : D040830.4

Start Date	Start Time	End Date	End Time
11/19/2003	2104	11/19/2003	2118
12/08/2003	1941	12/09/2003	1422
02/10/2004	1856	02/10/2004	2308
02/13/2004	1751	02/13/2004	2138
02/20/2004	1458	02/23/2004	1840
08/05/2004	1412	08/05/2004	1451
09/27/2004	1438	09/27/2004	2056
02/14/2006	2002	02/14/2006	2105
05/31/2006	1756	05/31/2006	1852
10/11/2006	1446	10/11/2006	2039
07/26/2007	1340	07/26/2007	1900
08/20/2007	1450	08/20/2007	1555

Subject:	SGP/TWR/C1 - Tower SE-side lowered for maintenance
DataStreams:	sgp1twr10xC1.b1, sgp30twr10xC1.b1
Description:	The southeast side tower carriage was lowered for maintenance and/or data are off-scale during maintenance.
Measurements:	sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sgp30twr10xC1.b1: sd_vap_pres_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_25m sd_rh_60m sd_temp_60m sd_vap_pres_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D071217.2

Start Date	Start Time	End Date	End Time
12/04/2007	1700	01/24/2008	2030

Subject:	SGP/TWR/C1 - Southeast Side (10X) Temperature and RH Spikes
DataStreams:	sgp1twr10xC1.b1, sgp30twr10xC1.b1
Description:	Southeast side 25 m and 60 m (10X datastreams) carriage connectors may not have been well connected; temperatures and relative humidities spiked sometimes. This problem occurred after the carriages were lowered on 12/04.
Measurements:	sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sgp30twr10xC1.b1: sd_vap_pres_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_25m sd_rh_60m sd_temp_60m sd_vap_pres_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D090930.1

Start Date	Start Time	End Date	End Time
01/01/2009	0000	09/21/2009	1505

Subject:	SGP/TWR/C1 - 25m RH low
DataStreams:	sgp1440twr25mC1.b1, sgp1twr25mC1.b1, sgp30twr25mC1.b1
Description:	The west side 25m RH gradually drifted downwards over this period such that it was 8% lower than the 60m level RH measurement when compared side by side at ground level. T/RH sensor was replaced 21 September 2009.
Measurements:	sgp30twr25mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) sgp1twr25mC1.b1: Humidity, relative(rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sgp1440twr25mC1.b1: 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 minimum(min_rh) Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

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DQRID : D121017.3

Start Date	Start Time	End Date	End Time
10/09/2012	1845	10/09/2012	2210

Subject:	SGP/TWR/C1 - Tower lowered for maintenance
DataStreams:	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr10xC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr10xC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
Description:	The Tower carriages were lowered for T/RH probe replacements. All measurements from the instruments on the carriages are incorrect.
Measurements:	sgp30twr25mC1.b1: Humidity, relative(rh) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres aspirator Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp) sgp1440twr60mC1.b1: Time of Minimum Vapor Pressure(time_min_vap_pres) Temperature, air, at 60-m height, 24-hr maximum(max_temp) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres) Time of Relative Humidity(time_min_rh) 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) Time of Minimum Temperature(time_min_temp) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) aspirator sgp30twr60mC1.b1: Temperature, air(temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Humidity, relative(rh) aspirator Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air, 30-min intervals, standard deviation(sd_temp) sgp1twr60mC1.b1: aspirator Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) Temperature, air(temp) sgp1twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp30twr10xC1.b1: sd_vap_pres_25m Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_rh_60m sd_temp_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_vap_pres_60m Temperature, air, 25-m height, 30-min intervals(temp_25m) sd_temp_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp1440twr25mC1.b1: Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Temperature(time_min_temp) Temperature, air, at 60-m height, 24-hr minimum(min_temp) Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Temperature, air, at 60-m height, 24-hr maximum(max_temp) 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) Time of Maximum Vapor Pressure(time_max_vap_pres) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Maximum Temperature(time_max_temp)

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DQRID : D121017.4

Start Date	Start Time	End Date	End Time
10/10/2012	1905	10/10/2012	2045

Subject:	SGP/TWR/C1 - West tower lowered for maintenance
DataStreams:	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
Description:	The west tower elevator was operated to find a 60 m temperature sensor problem. All measurements on the west side are incorrect during this period.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_temp) 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 aspirator Temperature, air(temp) sgp1440twr60mC1.b1: Time of Minimum Vapor Pressure(time_min_vap_pres) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Temperature, air, at 60-m height, 24-hr maximum(max_temp) Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Pressure, vapor, at 60-m height, 24-hr maximum(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) Time of Relative Humidity(time_min_rh) Time of Minimum Temperature(time_min_temp) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) aspirator sgp30twr60mC1.b1: Humidity, relative(rh) aspirator Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) sgp1twr60mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) aspirator Humidity, relative(rh) Temperature, air(temp) sgp1440twr25mC1.b1: Time of Maximum Relative Humidity(time_max_rh) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Time of Minimum Temperature(time_min_temp) Temperature, air, at 60-m height, 24-hr minimum(min_temp) 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 maximum(max_temp) Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Relative Humidity(time_min_rh) Time of Maximum Temperature(time_max_temp)

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DQRID : D121019.2

Start Date	Start Time	End Date	End Time
03/08/2012	2300	10/09/2012	2300

Subject:	SGP/TWR/C1 - 60m temps on SE tower suspect
DataStreams:	sgp1twr10xC1.b1
Description:	60m 10x temperature was biased low during the period 03/08/2012 2300 UTC through 06/04/2012 1500 UTC. After maintenance on 06/04/2012 the temperature was slightly biased high until another sensor changeout on 10/09/2012 2300 UTC.
Measurements:	sgp1twr10xC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m)

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DQRID : D130116.6

Start Date	Start Time	End Date	End Time
10/26/2012	1800	10/28/2012	0130

Subject:	SGP/TWR/C1 - Temp data suspect
DataStreams:	sgp1twr25mC1.b1, sgp30twr25mC1.b1
Description:	The 1twr25m_temp data stream remained constant (data looks stepped) at varying intervals and appears erroneous when compared with the other twr measurements. The problem was only severe for the time period indicated. This behavior has been seen before and since, but usually not this severe. It has a small effect on the calculated vapor pressure.
Measurements:	sgp30twr25mC1.b1: Temperature, air(temp) sgp1twr25mC1.b1: Temperature, air(temp)

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DQRID : D131031.3

Start Date	Start Time	End Date	End Time
10/22/2013	1830	10/25/2013	1700

Subject:	SGP/TWR/C1 - T/RH/VP Incorrect at times
DataStreams:	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr10xC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr10xC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
Description:	T/RH/VP were incorrect at times because the tower was undergoing maintenance or instrument issues were being assessed.
Measurements:	sgp30twr25mC1.b1: Humidity, relative(rh) Humidity, relative, 30-min intervals, standard deviation(sd_rh) aspirator Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) lat alt time_offset base_time Temperature, air(temp) sd_vap_pres lon sgp1440twr60mC1.b1: lat Time of Minimum Vapor Pressure(time_min_vap_pres) Temperature, air, at 60-m height, 24-hr maximum(max_temp) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres) Time of Relative Humidity(time_min_rh) alt Humidity, relative, at 60-m height, 24-hr maximum(max_rh) time_offset Time of Minimum Temperature(time_min_temp) time Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Temperature, air, at 60-m height, 24-hr minimum(min_temp) lon Time of Maximum Vapor Pressure(time_max_vap_pres) base_time sgp1twr25mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) vbat base_time lat lon time_offset aspirator Temperature, air(temp) alt Humidity, relative(rh) sgp30twr60mC1.b1: lon base_time Temperature, air(temp) Humidity, relative(rh) time_offset lat Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres alt aspirator Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air, 30-min intervals, standard deviation(sd_temp) sgp1twr60mC1.b1: time_offset lat alt Humidity, relative(rh) aspirator base_time Pressure, vapor, 60-m height, 30-min intervals(vap_pres) lon vbat Temperature, air(temp) sgp1twr10xC1.b1: Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) vbat Humidity, relative, 60-m height, 30-min intervals(rh_60m) time_offset base_time Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) lat alt lon sgp1440twr25mC1.b1: Time of Maximum Relative Humidity(time_max_rh) Temperature, air, at 60-m height, 24-hr minimum(min_temp) Temperature, air, at 60-m height, 24-hr maximum(max_temp) time_offset lon Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Maximum Temperature(time_max_temp) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Time of Minimum Temperature(time_min_temp) base_time lat Humidity, relative, at 60-m height, 24-hr minimum(min_rh) alt Time of Relative Humidity(time_min_rh) Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres) time Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp30twr10xC1.b1: base_time sd_rh_25m sd_temp_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) lon sd_temp_25m lat time_offset sd_vap_pres_25m Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_rh_60m sd_vap_pres_60m Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) alt Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D980528.11

Start Date	Start Time	End Date	End Time
03/21/2003	1825	03/21/2003	2027
08/14/2003	1445	08/14/2003	1521
08/14/2003	1902	08/14/2003	1937
08/15/2003	1344	08/15/2003	1945
08/19/2003	1416	08/19/2003	1604
10/06/2003	1713	10/06/2003	1828
03/17/2003	1622	03/17/2003	1704
12/18/2002	2037	12/18/2002	2140
01/30/2003	1655	01/30/2003	1814
02/21/2003	1955	02/21/2003	2057
02/22/2003	1917	02/22/2003	2110
11/07/2002	1557	11/07/2002	1731
12/16/2002	1631	12/16/2002	1710
09/26/1997	2010	09/26/1997	2047
10/24/1997	1746	10/24/1997	1823
05/01/1998	1827	05/01/1998	1936
05/18/1998	1947	05/18/1998	2106
07/16/1998	1442	07/16/1998	1512
08/03/1998	1904	08/03/1998	2035
08/06/1998	1918	08/06/1998	1939
12/08/1998	2107	12/08/1998	2200
11/12/2001	2050	11/12/2001	2110
12/19/2001	2055	12/19/2001	2121
04/11/2002	2003	04/11/2002	2131
08/01/2002	1330	08/01/2002	2201
08/02/2002	1354	08/02/2002	1912
09/03/2002	1937	09/03/2002	2032
09/10/2002	1734	09/10/2002	1843
10/24/2002	1418	10/24/2002	1436
10/25/2002	1806	10/31/2002	1621
10/31/2002	1914	10/31/2002	2209
11/06/2002	1552	11/06/2002	1804
11/06/2002	2017	11/06/2002	2222
10/04/2001	1828	10/04/2001	1913
10/02/2001	2006	10/02/2001	2103
08/08/2001	1356	08/08/2001	1901
09/26/2001	1834	09/26/2001	2122
09/27/2001	1504	09/27/2001	1918
10/02/2001	1549	10/02/2001	1610
08/07/2001	1343	08/07/2001	1841
07/12/2001	2103	07/12/2001	2136
07/13/2001	2018	07/13/2001	2141
07/20/2001	1451	07/20/2001	1657
05/18/2001	1707	05/18/2001	1720
11/16/1999	1701	11/16/1999	1827
11/18/1999	1621	11/18/1999	1748
11/19/1999	1415	11/19/1999	1615
01/06/2000	1942	01/06/2000	2127
08/14/2000	1447	08/14/2000	2138
11/27/2000	1842	11/27/2000	2016
11/29/2000	1400	11/29/2000	1446
05/04/2001	1839	05/04/2001	1855
05/14/2001	1454	05/14/2001	1507
09/15/1999	1353	09/15/1999	1536
09/15/1999	1750	09/15/1999	1850
09/16/1999	1846	09/16/1999	1933
11/15/1999	2011	11/15/1999	2220
07/02/1999	1720	07/02/1999	1735
09/07/1999	1610	09/07/1999	1641
05/19/1999	1755	05/19/1999	1915

Subject:	SGP/TWR/C1 - Tower SE-side lowered for maintenance
DataStreams:	sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1, sgp30twr10xC1.a1
Description:	The SE-side carriage was lowered for maintenance and/or data values are off-scale during maintenance.
Measurements:	sgp30twr10xC1.a1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m sd_vap_pres_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_temp_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) sd_vap_pres_25m sd_temp_60m sd_rh_60m sgp1twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sgp1twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m) sgp30twr10xC1.b1: sd_vap_pres_25m Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_25m sd_rh_60m sd_temp_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_vap_pres_60m Temperature, air, 25-m height, 30-min intervals(temp_25m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D990415.4

Start Date	Start Time	End Date	End Time
02/03/2002	1437	02/10/2002	2223
03/09/2002	2002	03/11/2002	2101
02/22/2003	2320	02/26/2003	1518
03/13/1999	2305	03/15/1999	0611

Subject:	SGP/TWR/C1 - Missing data
DataStreams:	sgp30twr25mC1.b1, sgp1440twr25mC1.b1, sgp1twr25mC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_temp) Humidity, relative(rh) Humidity, relative, 30-min intervals, standard deviation(sd_rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) lat alt time_offset sd_vap_pres base_time aspirator lon Temperature, air(temp) sgp1twr25mC1.b1: Temperature, air(temp) alt Pressure, vapor, 60-m height, 30-min intervals(vap_pres) vbat lat lon base_time Humidity, relative(rh) time_offset aspirator sgp1440twr25mC1.b1: Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Time of Maximum Relative Humidity(time_max_rh) Time of Minimum Temperature(time_min_temp) Temperature, air, at 60-m height, 24-hr minimum(min_temp) base_time Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres) lat Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Temperature, air, at 60-m height, 24-hr maximum(max_temp) time_offset lon time Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) alt Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Relative Humidity(time_min_rh) Time of Maximum Temperature(time_max_temp)

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DQRID : D990415.6

Start Date	Start Time	End Date	End Time
02/22/2003	2251	02/26/2003	1946
03/15/1999	0859	03/19/1999	1939
02/03/2002	1439	02/10/2002	2223
03/09/2002	2002	03/11/2002	2101

Subject:	SGP/TWR/C1 - Missing data
DataStreams:	sgp1twr60mC1.b1, sgp30twr60mC1.b1, sgp1440twr60mC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	sgp1440twr60mC1.b1: lat time Time of Minimum Vapor Pressure(time_min_vap_pres) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Temperature, air, at 60-m height, 24-hr maximum(max_temp) Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres) Temperature, air, at 60-m height, 24-hr minimum(min_temp) time_offset Time of Relative Humidity(time_min_rh) lon Time of Minimum Temperature(time_min_temp) Time of Maximum Vapor Pressure(time_max_vap_pres) alt base_time sgp30twr60mC1.b1: Humidity, relative(rh) aspirator lon Pressure, vapor, 60-m height, 30-min intervals(vap_pres) base_time time_offset lat Temperature, air(temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) alt sgp1twr60mC1.b1: lat alt Pressure, vapor, 60-m height, 30-min intervals(vap_pres) lon aspirator time_offset Humidity, relative(rh) base_time vbat Temperature, air(temp)

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DQRID : D990421.1

Start Date	Start Time	End Date	End Time
12/16/2000	0000	12/18/2000	1214
02/08/2002	0443	02/19/2002	1615
02/22/2002	1739	02/25/2002	1918
03/09/2002	2002	03/11/2002	2001
12/14/2002	0702	12/16/2002	1330
10/06/2003	1702	10/08/2003	1401
10/31/1998	1104	11/03/1998	1500
08/08/1999	0000	08/08/1999	2359
10/18/2000	1504	10/20/2000	1150
09/18/1997	0036	09/22/1997	0130
08/21/1998	2004	09/18/1998	1538

Subject:	SGP/TWR/C1 - Missing data
DataStreams:	sgp30twr10xC1.a1, sgp30twr10xC1.b1, sgp1twr10xC1.a1, sgp1twr10xC1.b1
Description:	Data are missing and unrecoverable.
Measurements:	sgp30twr10xC1.a1: Humidity, relative, 60-m height, 30-min intervals(rh_60m) lat lon Humidity, relative, 25-m height, 30-min intervals(rh_25m) sd_temp_25m Temperature, air, 25-m height, 30-min intervals(temp_25m) sd_vap_pres_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) Temperature, air, 60-m height, 30-min intervals(temp_60m) base_time sd_rh_25m time_offset alt sd_vap_pres_60m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_temp_60m sd_rh_60m sgp1twr10xC1.a1: Temperature, air, 60-m height, 30-min intervals(temp_60m) alt Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) vbat time_offset Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) lat Humidity, relative, 60-m height, 30-min intervals(rh_60m) lon base_time Temperature, air, 25-m height, 30-min intervals(temp_25m) sgp1twr10xC1.b1: Humidity, relative, 25-m height, 30-min intervals(rh_25m) Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) Temperature, air, 60-m height, 30-min intervals(temp_60m) Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) vbat alt lat Humidity, relative, 60-m height, 30-min intervals(rh_60m) time_offset base_time lon sgp30twr10xC1.b1: lat base_time time_offset sd_vap_pres_25m Temperature, air, 60-m height, 30-min intervals(temp_60m) sd_rh_25m Pressure, vapor, 25-m height, 30-min intervals(vap_pres_25m) sd_rh_60m sd_temp_60m sd_vap_pres_60m Humidity, relative, 25-m height, 30-min intervals(rh_25m) Temperature, air, 25-m height, 30-min intervals(temp_25m) lon sd_temp_25m Pressure, vapor, 60-m height, 30-min intervals(vap_pres_60m) alt Humidity, relative, 60-m height, 30-min intervals(rh_60m)

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DQRID : D990607.1

Start Date	Start Time	End Date	End Time
02/12/1999	1827	02/12/1999	1846
04/30/1999	1515	04/30/1999	1730
05/19/1999	1755	05/20/1999	1755
07/02/1999	1720	07/02/1999	1925
07/16/1999	1417	07/16/1999	1823
11/16/1999	1611	11/16/1999	1701
12/18/2002	1749	12/18/2002	2036
02/21/2003	1927	02/21/2003	2113
02/22/2003	1927	02/22/2003	2111
05/15/2003	1618	05/15/2003	2124
08/05/2003	1837	08/05/2003	1914
08/14/2003	1521	08/15/2003	1945
02/09/2004	1619	02/10/2004	1753
08/14/2000	1447	08/14/2000	2138
02/01/2001	2037	02/01/2001	2112
08/03/2001	1932	08/03/2001	2108
08/08/2001	1356	08/08/2001	1850
08/01/2002	1330	08/01/2002	2201
08/02/2002	1354	08/02/2002	1912
09/10/2002	1839	09/10/2002	1921
10/31/2002	1446	10/31/2002	1621
10/31/2002	2200	11/01/2002	1744
12/17/2002	1634	12/17/2002	2152
02/11/2004	1614	02/11/2004	2213
04/26/2004	1529	04/29/2004	1346
08/05/2004	1451	08/05/2004	1525
09/27/2004	1432	09/27/2004	2105
10/12/2004	1417	10/13/2004	1700
10/20/2004	1755	10/20/2004	1925
05/24/2005	1410	05/25/2005	2145
05/18/2006	1530	05/18/2006	2102
05/22/2006	2002	05/22/2006	2052
05/24/2006	1328	05/24/2006	1631
10/05/2006	1746	10/05/2006	2031
10/11/2006	1505	10/11/2006	2024
07/26/2007	1340	07/26/2007	1900
10/01/2007	1725	10/01/2007	1812
10/03/2007	1736	10/03/2007	1820

Subject:	SGP/TWR/C1 - W Side of Tower lowered for maintenance
DataStreams:	sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1
Description:	The west side tower carriages were lowered for maintenance and/or data are offscale during routine maintenance.
Measurements:	sgp30twr25mC1.b1: Temperature, air, 30-min intervals, standard deviation(sd_temp) 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 Temperature, air(temp) sgp1440twr60mC1.b1: Time of Minimum Vapor Pressure(time_min_vap_pres) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Temperature, air, at 60-m height, 24-hr maximum(max_temp) Humidity, relative, at 60-m height, 24-hr minimum(min_rh) Time of Maximum Temperature(time_max_temp) Time of Maximum Relative Humidity(time_max_rh) Pressure, vapor, at 60-m height, 24-hr maximum(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) Time of Relative Humidity(time_min_rh) Time of Minimum Temperature(time_min_temp) Time of Maximum Vapor Pressure(time_max_vap_pres) sgp1twr25mC1.b1: Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) sgp30twr60mC1.b1: Humidity, relative(rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) sgp1twr60mC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative(rh) Temperature, air(temp) sgp1440twr25mC1.b1: Time of Maximum Relative Humidity(time_max_rh) Humidity, relative, at 60-m height, 24-hr maximum(max_rh) Time of Minimum Temperature(time_min_temp) Temperature, air, at 60-m height, 24-hr minimum(min_temp) 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 maximum(max_temp) Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres) Time of Maximum Vapor Pressure(time_max_vap_pres) Time of Minimum Vapor Pressure(time_min_vap_pres) Time of Relative Humidity(time_min_rh) Time of Maximum Temperature(time_max_temp)

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END OF DATA