DQRs for Session: 127422 User:wljCompleted: 04-28-2010

Data Quality Reports for Session: 127422 User: wlj Completed: 04/28/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020509.10	NSA/CMH/C2 - Occasional Bad Temp and DP	nsacmhC2.00, nsacmhC2.a1
D020509.11	NSA/CMH/C2 - Data Missing	nsacmhC2.00, nsacmhC2.a1
D020509.12	NSA/CMH/C2 - Data Missing	nsacmhC2.00
D020509.13	NSA/CMH/C2 - Data Intermittently Missing	nsacmhC2.00, nsacmhC2.a1
D020509.14	NSA/CMH/C2 - Data Intermittently Missing	nsacmhC2.00
D020509.17	NSA/CMH/C2 - Data Missing	nsacmhC2.00, nsacmhC2.a1
D020509.4	NSA/CMH/C2 - Temp and DP have spikes	nsacmhC2.00
D020509.5	NSA/CMH/C2 - Temp and DP have spikes	nsacmhC2.00, nsacmhC2.a1
D020509.6	NSA/CMH/C2 - Some RH Values incorrect	nsacmhC2.00, nsacmhC2.a1
D020509.7	NSA/CMH/C2 - Some RH Values incorrect	nsacmhC2.00
D020509.8	NSA/CMH/C2 - Temp and DP incorrect	nsacmhC2.00, nsacmhC2.a1
D020509.9	NSA/CMH/C2 - Temp and DP incorrect	nsacmhC2.00
D020610.4	NSA/CMH/C1 - Data missing due to Power Failure	nsacmhC1.00, nsacmhC1.a1
D020611.1	NSA/METTIPTWR/C2 - Data missing due to Power Failure	nsametC2.00, nsamettiptwrC2.a1, nsamettiptwrC2.b1
D030328.1	NSA/CMH/C1 - Data not representative	nsacmhC1.00, nsacmhC1.b1
D981102.1	NSA/TOWER - Mislabeled tower sensors	nsametC1.00, nsamettwrC1.a1
D991116.1	NSA/METTOWER - Questionable NSA Met-tower wind data	nsametC1.00, nsamettwrC1.a1
D991116.2	NSA/METTOWER - Questionable NSA Met-tower wind data	nsametC1.00, nsamettwrC1.a1
D991129.1	NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima	nsametC1.00, nsamettwrC1.a1

DQRID : D020509.10

Start Date	Start Time	End Date	End Time
04/23/2001	1731	05/30/2001	2100

Subject:	NSA/CMH/C2 - Occasional Bad Temp and DP
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time period indicated, temperature was occasionally incorrectly reported as -320 and dew point was occasionally incorrectly reported as -32.
Measurements:	nsacmhC2.a1: Dew point temperature(dew_pt_temp) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.11

Start Date	Start Time	End Date	End Time
05/30/2001	2101	06/16/2001	0629
07/04/2001	1701	07/14/2001	1700
07/30/2001	0501	08/06/2001	0630

Subject:	NSA/CMH/C2 - Data Missing
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, all data were reported as -9999, missing.
Measurements:	nsacmhC2.a1: Relative Humidity out of range error(relh_out_of_range_error) Read timeout error(read_timeout_error) Dew point temperature(dew_pt_temp) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Serial port read error(serial_read_error) Relative humidity(relh) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.12

Start Date	Start Time	End Date	End Time
08/16/2001	1701	03/09/2002	2359

Subject:	NSA/CMH/C2 - Data Missing
DataStreams:	nsacmhC2.00
Description:	During the time periods indicated, all data were reported as -9999, missing.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.13

Start Date	Start Time	End Date	End Time
06/16/2001	0630	07/04/2001	1700
07/14/2001	1701	07/30/2001	0500
08/06/2001	0631	08/07/2001	2359

Subject:	NSA/CMH/C2 - Data Intermittently Missing
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, data were reported as -9999, missing, intermittently.
Measurements:	nsacmhC2.a1: Relative Humidity out of range error(relh_out_of_range_error) Read timeout error(read_timeout_error) Dew point temperature(dew_pt_temp) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Serial port read error(serial_read_error) Relative humidity(relh) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.14

Start Date	Start Time	End Date	End Time
08/08/2001	0000	08/16/2001	1700

Subject:	NSA/CMH/C2 - Data Intermittently Missing
DataStreams:	nsacmhC2.00
Description:	During the time periods indicated, data were reported as -9999, missing, intermittently.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.17

Start Date	Start Time	End Date	End Time
03/10/2002	0000	04/20/2003	0203

Subject:	NSA/CMH/C2 - Data Missing
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	Data collection and processing turned off due to chronic instrument problems. No raw or processed data are available.
Measurements:	nsacmhC2.a1: Relative Humidity out of range error(relh_out_of_range_error) Dummy altitude for Zeb(alt) base time(base_time) lon(lon) Time offset of tweaks from base_time(time_offset) Dew point temperature(dew_pt_temp) Serial port read error(serial_read_error) Read timeout error(read_timeout_error) lat(lat) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Relative humidity(relh) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.4

Start Date	Start Time	End Date	End Time
07/19/2000	0000	10/28/2000	0400
10/30/2000	0131	11/07/2000	2100
11/09/2000	1601	11/13/2000	0100
11/13/2000	0501	11/22/2000	2100
11/24/2000	0201	11/27/2000	0700
11/28/2000	1701	11/29/2000	0100
11/30/2000	1301	12/05/2000	1800
12/07/2000	2001	12/09/2000	2000
12/13/2000	0001	12/23/2000	0000
12/26/2000	2001	12/30/2000	1400
12/31/2000	1701	01/03/2001	1100
01/03/2001	1701	01/09/2001	0100
01/10/2001	1701	01/13/2001	1400
01/13/2001	1901	01/17/2001	0500
01/20/2001	1001	01/22/2001	0700
01/22/2001	2201	01/24/2001	1600
01/25/2001	0101	02/02/2001	0100
02/03/2001	1501	02/21/2001	1600
02/23/2001	1401	02/27/2001	0700
02/27/2001	1801	03/03/2001	1300
03/07/2001	0901	03/31/2001	2319

Subject:	NSA/CMH/C2 - Temp and DP have spikes
DataStreams:	nsacmhC2.00
Description:	During the time periods indicated, the temperature and dew point data contain spikes. This usually meant the first record had 99.99 meaning missing, but sometimes the whole record was bad.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.5

Start Date	Start Time	End Date	End Time
03/31/2001	2320	04/04/2001	1000
04/06/2001	1001	04/18/2001	1100
04/19/2002	0001	04/23/2002	1730

Subject:	NSA/CMH/C2 - Temp and DP have spikes
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, the temperature and dew point data contain spikes. This usually meant the first record had 99.99 meaning missing, but sometimes the whole record was bad.
Measurements:	nsacmhC2.a1: Dew point temperature(dew_pt_temp) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.6

Start Date	Start Time	End Date	End Time
03/31/2001	2320	04/25/2001	2359

Subject:	NSA/CMH/C2 - Some RH Values incorrect
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time period indicated, RH values were off by a factor of 10 (decimal shifted to the left one place) whenever temp, dew point or both were between 1 deg and 9 deg. RH was reported as zero whenever temp, dew point or both were 0 deg or less. RH values are okay when temp and dew point were both 10 deg or above.
Measurements:	nsacmhC2.a1: Relative Humidity out of range error(relh_out_of_range_error) Relative humidity(relh) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.7

Start Date	Start Time	End Date	End Time
07/19/2000	0000	03/31/2001	2319

Subject:	NSA/CMH/C2 - Some RH Values incorrect
DataStreams:	nsacmhC2.00
Description:	During the time period indicated, RH values were off by a factor of 10 (decimal shifted to the left one place) whenever temp, dew point or both were between 1 deg and 9 deg. RH was reported as zero whenever temp, dew point or both were 0 deg or less. RH values are okay when temp and dew point were both 10 deg or above.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.8

Start Date	Start Time	End Date	End Time
04/04/2001	1001	04/06/2001	1000
04/18/2001	1101	04/19/2001	0000

Subject:	NSA/CMH/C2 - Temp and DP incorrect
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, temperature was incorrectly reported as -320 and dew point was incorrectly reported as -32.
Measurements:	nsacmhC2.a1: Dew point temperature(dew_pt_temp) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020509.9

Start Date	Start Time	End Date	End Time
10/28/2000	0401	10/30/2000	0130
11/07/2000	2101	11/09/2000	1600
11/13/2000	0101	11/13/2000	0500
11/22/2000	2101	11/24/2000	0200
11/27/2000	0701	11/28/2000	1700
11/29/2000	0101	11/30/2000	1300
12/05/2000	1801	12/07/2000	2000
12/09/2000	2001	12/13/2000	0000
12/23/2000	0001	12/26/2000	2000
12/30/2000	1401	12/31/2000	1700
01/03/2001	1101	01/03/2001	1700
01/09/2001	0101	01/10/2001	1700
01/13/2001	1401	01/13/2001	1900
01/17/2001	0501	01/20/2001	1000
01/22/2001	0701	01/22/2001	2200
01/24/2001	1601	01/25/2001	0100
02/02/2001	0101	02/03/2001	1500
02/21/2001	1601	02/23/2001	1400
02/27/2001	0701	02/27/2001	1800
03/03/2001	1301	03/07/2001	0900

Subject:	NSA/CMH/C2 - Temp and DP incorrect
DataStreams:	nsacmhC2.00
Description:	During the time periods indicated, temperature was incorrectly reported as -320 and dew point was incorrectly reported as -32.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported)

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DQRID : D020610.4

Start Date	Start Time	End Date	End Time
06/06/2002	0150	06/07/2002	0010

Subject:	NSA/CMH/C1 - Data missing due to Power Failure
DataStreams:	nsacmhC1.00, nsacmhC1.a1
Description:	From 020606.0150-0204, CMH data are all -9999 due to power failure. From 0205-2000, the collection program was shut down and no CMH data were collected. From 020606.2001-020607.0010, CMH data are all -9999 due to power failure.
Measurements:	nsacmhC1.00: null(Raw data stream - documentation not supported) nsacmhC1.a1: lat(lat) lon(lon) base time(base_time) Dew point temperature(dew_pt_temp) Serial port read error(serial_read_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Read timeout error(read_timeout_error) Air temperature(air_temp) Time offset of tweaks from base_time(time_offset) Dummy altitude for Zeb(alt) Relative Humidity out of range error(relh_out_of_range_error) Relative humidity(relh) Air temperature out of range error(air_temp_out_of_range_error)

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DQRID : D020611.1

Start Date	Start Time	End Date	End Time
06/05/2002	1227	06/06/2002	2100

Subject:	NSA/METTIPTWR/C2 - Data missing due to Power Failure
DataStreams:	nsametC2.00, nsamettiptwrC2.a1, nsamettiptwrC2.b1
Description:	No data were collected due to a power failure.
Measurements:	nsametC2.00: null(Raw data stream - documentation not supported) nsamettiptwrC2.a1: Mean Dew Point Temperature(dew_pt_temp_mean) Temperature maximum(temp_max) base time(base_time) lat(lat) Minimum Wind Direction(wind_dir_min) Std Dev of Air Temperature Difference(temp_sd_diff) Air Temperature Hardware Error(temp_hardware_error) Maximum Wind Direction(wind_dir_max) Std Dev of Air Temperature(temp_sd) Minimum Dew Point Temperature(dew_pt_temp_min) Std Dev of Wind Speed(wind_spd_sd) Air Temperature out of range error(temp_out_of_range_error) Number of timeouts reading the met tower data by height(read_timeout_count) Vapor Pressure out of range error(vap_pres_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Internal Temperature out of range error(internal_temp_out_of_range_error) Mean Relative Humidity(relh_mean) Minimum Air Temperature Difference(temp_min_diff) Mean Air Temperature Difference(temp_mean_diff) Out of Range Error(atmos_pressure_out_of_range_error) Maximum Dew Point Temperature(dew_pt_temp_max) Dummy altitude for Zeb(alt) Temperature minimum(temp_min) Read Timeout Error(atmos_pressure_read_timeout_error) Mean Wind Speed(wind_spd_mean) Minimum Wind Speed(wind_spd_min) Maximum Wind Speed(wind_spd_max) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Wind Direction out of range error(wind_dir_out_of_range_error) Relative humidity minimum(relh_min) Vector-averaged Wind Direction(wind_dir_vec_avg) lon(lon) Std Dev of Wind Direction(wind_dir_sd) Internal Voltage out of range error(internal_voltage_out_of_range) Maximum Air Temperature Difference(temp_max_diff) PTB Serial Error(atmos_pressure_PTB_serial_error) Relative humidity maximum(relh_max) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Time offset of tweaks from base_time(time_offset) Mean Air Temperature or Hardware Error(temp_mean) Barometric Pressure(atmos_pressure) Wind Speed out of range error(wind_spd_out_of_range_error) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Maximum Vapor Pressure(vap_pres_max) Mean Vapor Pressure(vap_pres_mean) Std Dev of Vapor Pressure(vap_pres_sd) nsamettiptwrC2.b1: Mean Vapor Pressure(vap_pres_mean) Vector-averaged Wind Direction(wind_dir_vec_avg) Mean Wind Speed(wind_spd_mean) Dummy altitude for Zeb(alt) Time offset of tweaks from base_time(time_offset) Std Dev of Vapor Pressure(vap_pres_sd) Mean Relative Humidity(relh_mean) Internal Voltage out of range error(internal_voltage_out_of_range) Vapor Pressure out of range error(vap_pres_out_of_range_error) Std Dev of Air Temperature(temp_sd) Air Temperature out of range error(temp_out_of_range_error) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Maximum Air Temperature Difference(temp_max_diff) Number of timeouts reading the met tower data by height(read_timeout_count) Wind Speed out of range error(wind_spd_out_of_range_error) Std Dev of Wind Speed(wind_spd_sd) Barometric Pressure(atmos_pressure) lon(lon) Internal Temperature out of range error(internal_temp_out_of_range_error) Mean Dew Point Temperature(dew_pt_temp_mean) Temperature maximum(temp_max) Temperature minimum(temp_min) Wind Direction out of range error(wind_dir_out_of_range_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Out of Range Error(atmos_pressure_out_of_range_error) Minimum Air Temperature Difference(temp_min_diff) Mean Air Temperature Difference(temp_mean_diff) Mean Air Temperature or Hardware Error(temp_mean) Air Temperature Hardware Error(temp_hardware_error) Relative humidity maximum(relh_max) Relative humidity minimum(relh_min) Vector-averaged Wind Speed(wind_spd_vec_avg) Maximum Vapor Pressure(vap_pres_max) lat(lat) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Minimum Dew Point Temperature(dew_pt_temp_min) Maximum Wind Direction(wind_dir_max) Minimum Wind Direction(wind_dir_min) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Std Dev of Dew Point Temperature(dew_pt_temp_sd) base time(base_time) Std Dev of Wind Direction(wind_dir_sd) Maximum Dew Point Temperature(dew_pt_temp_max) Std Dev of Air Temperature Difference(temp_sd_diff) Minimum Wind Speed(wind_spd_min) Maximum Wind Speed(wind_spd_max) Read Timeout Error(atmos_pressure_read_timeout_error) Relative Humidity out of range error(relh_out_of_range_error)

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DQRID : D030328.1

Start Date	Start Time	End Date	End Time
03/26/2003	1200	10/22/2003	1700

Subject:	NSA/CMH/C1 - Data not representative
DataStreams:	nsacmhC1.00, nsacmhC1.b1
Description:	The CMH at the NS Barrow site was moved from the base of the tower to the top of the Great White Building. This was done to test the communication of the sensor without having to use any bit drivers.
Measurements:	nsacmhC1.00: null(Raw data stream - documentation not supported) nsacmhC1.b1: Dew point temperature(dew_pt_temp) Dummy altitude for Zeb(alt) base time(base_time) Relative humidity(relh) Time offset of tweaks from base_time(time_offset) Relative Humidity out of range error(relh_out_of_range_error) Air temperature(air_temp) Serial port read error(serial_read_error) lon(lon) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Read timeout error(read_timeout_error) Air temperature out of range error(air_temp_out_of_range_error) lat(lat)

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DQRID : D981102.1

Start Date	Start Time	End Date	End Time
08/21/1998	0000	10/22/1998	2200

Subject:	NSA/TOWER - Mislabeled tower sensors
DataStreams:	nsametC1.00, nsamettwrC1.a1
Description:	The NSA tower data displayed on the local computer screen had the height mislabeled. Data written to files were correct. When the data acquisition program was fixed on 22 OCT 1998, only the computer display was changed.
Measurements:	nsamettwrC1.a1: Barometric Pressure(atmos_pressure) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Relative humidity minimum(relh_min) Maximum Wind Direction(wind_dir_max) Mean Vapor Pressure(vap_pres_mean) Internal Temperature out of range error(internal_temp_out_of_range_error) Vector-averaged Wind Direction(wind_dir_vec_avg) Out of Range Error(atmos_pressure_out_of_range_error) Dummy altitude for Zeb(alt) Std Dev of Wind Speed(wind_spd_sd) Minimum Wind Speed(wind_spd_min) Std Dev of Wind Direction(wind_dir_sd) Maximum Vapor Pressure(vap_pres_max) Mean Wind Speed(wind_spd_mean) Mean Dew Point Temperature(dew_pt_temp_mean) base time(base_time) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Std Dev of Air Temperature(temp_sd) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) lon(lon) Wind Speed out of range error(win_spd_out_of_range_error) Minimum Wind Direction(wind_dir_min) Air Temperature out of range error(temp_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Read Timeout Error(atmos_pressure_read_timeout_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Number of timeouts reading the met tower data by height(read_timeout_count) Mean Air Temperature or Hardware Error(temp_mean) Minimum Dew Point Temperature(dew_pt_temp_min) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air Temperature Hardware Error(temp_hardware_error) GPS raw data filename(filename) Vapor Pressure out of range error(vap_pres_out_of_range_error) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Wind Speed(wind_spd_max) lat(lat) Temperature maximum(temp_max) Relative humidity maximum(relh_max) Internal Voltage out of range error(internal_voltage_out_of_range_error) Time offset of tweaks from base_time(time_offset) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Maximum Dew Point Temperature(dew_pt_temp_max) Wind Direction out of range error(win_dir_out_of_range_error) nsametC1.00: null(Raw data stream - documentation not supported)

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DQRID : D991116.1

Start Date	Start Time	End Date	End Time
09/08/1999	2200	10/25/1999	2300

Subject:	NSA/METTOWER - Questionable NSA Met-tower wind data
DataStreams:	nsametC1.00, nsamettwrC1.a1
Description:	The data analysis software for the NSA Met_tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included replacement of missing data with -99.99's when the routine that polled the Met-tower sensors timed out. This resulted in large negative spikes in the 1-min averages. These spikes almost always occurred during the first several 1-min periods of a half-hour data processing routine. On 25 OCT 1999 at 2300 the routine that replaced missing data was changed to insert the previous 1-min averaged data instead of -99.99. Since at the most only one or two values are missing in ay averaging period, this change results in a reasonable estimate of the true mean values
Measurements:	nsamettwrC1.a1: Barometric Pressure(atmos_pressure) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Relative humidity minimum(relh_min) Maximum Wind Direction(wind_dir_max) Mean Vapor Pressure(vap_pres_mean) Internal Temperature out of range error(internal_temp_out_of_range_error) Vector-averaged Wind Direction(wind_dir_vec_avg) Out of Range Error(atmos_pressure_out_of_range_error) Dummy altitude for Zeb(alt) Std Dev of Wind Speed(wind_spd_sd) Minimum Wind Speed(wind_spd_min) Std Dev of Wind Direction(wind_dir_sd) Maximum Vapor Pressure(vap_pres_max) Mean Wind Speed(wind_spd_mean) Mean Dew Point Temperature(dew_pt_temp_mean) base time(base_time) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Std Dev of Air Temperature(temp_sd) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) lon(lon) Wind Speed out of range error(win_spd_out_of_range_error) Minimum Wind Direction(wind_dir_min) Air Temperature out of range error(temp_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Read Timeout Error(atmos_pressure_read_timeout_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Number of timeouts reading the met tower data by height(read_timeout_count) Mean Air Temperature or Hardware Error(temp_mean) Minimum Dew Point Temperature(dew_pt_temp_min) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air Temperature Hardware Error(temp_hardware_error) GPS raw data filename(filename) Vapor Pressure out of range error(vap_pres_out_of_range_error) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Wind Speed(wind_spd_max) lat(lat) Temperature maximum(temp_max) Relative humidity maximum(relh_max) Internal Voltage out of range error(internal_voltage_out_of_range_error) Time offset of tweaks from base_time(time_offset) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Maximum Dew Point Temperature(dew_pt_temp_max) Wind Direction out of range error(win_dir_out_of_range_error) nsametC1.00: null(Raw data stream - documentation not supported)

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DQRID : D991116.2

Start Date	Start Time	End Date	End Time
09/08/1999	2200	11/15/1999	2200

Subject:	NSA/METTOWER - Questionable NSA Met-tower wind data
DataStreams:	nsametC1.00, nsamettwrC1.a1
Description:	The data analysis software for the NSA Met-tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included insertion of -99.99's for the wind vectors when the wind speed or direction were either missing or equal to 0. This resulted in incorrect vector averaged wind speed, wind direction, and standard deviation of wind direction. When this occurred, the vector-averaged wind speed and standard deviation of wind direction were often abnormally high and the vector-averaged wind direction was often approximately 225 deg. Starting at 2300 GMT on 25 OCT 99 missing wind data were replaced by the previous 1-min average and starting at 2200 GMT on 15 NOV 1999 the computed wind vectors were used whenever wind speeds or wind directions were 0.
Measurements:	nsamettwrC1.a1: Barometric Pressure(atmos_pressure) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Relative humidity minimum(relh_min) Maximum Wind Direction(wind_dir_max) Mean Vapor Pressure(vap_pres_mean) Internal Temperature out of range error(internal_temp_out_of_range_error) Vector-averaged Wind Direction(wind_dir_vec_avg) Out of Range Error(atmos_pressure_out_of_range_error) Dummy altitude for Zeb(alt) Std Dev of Wind Speed(wind_spd_sd) Minimum Wind Speed(wind_spd_min) Std Dev of Wind Direction(wind_dir_sd) Maximum Vapor Pressure(vap_pres_max) Mean Wind Speed(wind_spd_mean) Mean Dew Point Temperature(dew_pt_temp_mean) base time(base_time) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Std Dev of Air Temperature(temp_sd) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) lon(lon) Wind Speed out of range error(win_spd_out_of_range_error) Minimum Wind Direction(wind_dir_min) Air Temperature out of range error(temp_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Read Timeout Error(atmos_pressure_read_timeout_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Number of timeouts reading the met tower data by height(read_timeout_count) Mean Air Temperature or Hardware Error(temp_mean) Minimum Dew Point Temperature(dew_pt_temp_min) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air Temperature Hardware Error(temp_hardware_error) GPS raw data filename(filename) Vapor Pressure out of range error(vap_pres_out_of_range_error) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Wind Speed(wind_spd_max) lat(lat) Temperature maximum(temp_max) Relative humidity maximum(relh_max) Internal Voltage out of range error(internal_voltage_out_of_range_error) Time offset of tweaks from base_time(time_offset) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Maximum Dew Point Temperature(dew_pt_temp_max) Wind Direction out of range error(win_dir_out_of_range_error) nsametC1.00: null(Raw data stream - documentation not supported)

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DQRID : D991129.1

Start Date	Start Time	End Date	End Time
03/24/1998	0000	11/29/1999	2000

Subject:	NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima
DataStreams:	nsametC1.00, nsamettwrC1.a1
Description:	From the time of installation of the NSA C1 Met-tower system on 24 MAR 1998 until 29 NOV 1999 all wind direction minima and maxima were reported as raw (unrotated) data. In order to obtain correct minima and maxima 30 deg must be subtracted from the value. All mean wind directions were computed from rotated (corrected) data.
Measurements:	nsamettwrC1.a1: Barometric Pressure(atmos_pressure) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Relative humidity minimum(relh_min) Maximum Wind Direction(wind_dir_max) Mean Vapor Pressure(vap_pres_mean) Internal Temperature out of range error(internal_temp_out_of_range_error) Vector-averaged Wind Direction(wind_dir_vec_avg) Out of Range Error(atmos_pressure_out_of_range_error) Dummy altitude for Zeb(alt) Std Dev of Wind Speed(wind_spd_sd) Minimum Wind Speed(wind_spd_min) Std Dev of Wind Direction(wind_dir_sd) Maximum Vapor Pressure(vap_pres_max) Mean Wind Speed(wind_spd_mean) Mean Dew Point Temperature(dew_pt_temp_mean) base time(base_time) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Std Dev of Air Temperature(temp_sd) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) lon(lon) Wind Speed out of range error(win_spd_out_of_range_error) Minimum Wind Direction(wind_dir_min) Air Temperature out of range error(temp_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Read Timeout Error(atmos_pressure_read_timeout_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Number of timeouts reading the met tower data by height(read_timeout_count) Mean Air Temperature or Hardware Error(temp_mean) Minimum Dew Point Temperature(dew_pt_temp_min) Minimum Vapor Pressure(vap_pres_min) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air Temperature Hardware Error(temp_hardware_error) GPS raw data filename(filename) Vapor Pressure out of range error(vap_pres_out_of_range_error) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Wind Speed(wind_spd_max) lat(lat) Temperature maximum(temp_max) Relative humidity maximum(relh_max) Internal Voltage out of range error(internal_voltage_out_of_range_error) Time offset of tweaks from base_time(time_offset) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Maximum Dew Point Temperature(dew_pt_temp_max) Wind Direction out of range error(win_dir_out_of_range_error) nsametC1.00: null(Raw data stream - documentation not supported)

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