DQRs for Session: 121209 User:dmfoperCompleted: 08-03-2009

Data Quality Reports for Session: 121209 User: dmfoper Completed: 08/03/2009

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D060928.3	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry	sgpsondewnpnC1.b1
D060928.4	NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry	nsasondewnpnC1.b1
D090331.2	NSA/MET/C1 - Temp/RH/wind data questionable	nsametC1.b1, nsatwrC1.b1
D090331.3	NSA/MET/C1 - PWS data missing due to snow impaction	nsametC1.b1
D090331.4	NSA/MET/C1 - Wind data intermittent	nsametC1.b1, nsatwrC1.b1
D090331.5	NSA/MET/C1 - CMH data missing	nsametC1.b1

DQRID : D060928.3

Start Date	Start Time	End Date	End Time
09/28/2006	1728	12/31/9999	2359

Subject:	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry
DataStreams:	sgpsondewnpnC1.b1
Description:	The output precision of the following variables was increased 20060928 alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data.
Measurements:	sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) Retrieved pressure profile(pres) Dummy altitude for Zeb(alt)

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DQRID : D060928.4

Start Date	Start Time	End Date	End Time
09/29/2006	0500	12/31/9999	2359

Subject:	NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry
DataStreams:	nsasondewnpnC1.b1
Description:	The output precision of the following variables was increased 20060929: alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data.
Measurements:	nsasondewnpnC1.b1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry) Dummy altitude for Zeb(alt) Retrieved pressure profile(pres) Surface dew point temperature(dp)

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DQRID : D090331.2

Start Date	Start Time	End Date	End Time
09/18/2008	0000	09/20/2008	2359

Subject:	NSA/MET/C1 - Temp/RH/wind data questionable
DataStreams:	nsametC1.b1, nsatwrC1.b1
Description:	New wind sensors and new T/RH probes were being installed during this time period. The tower booms were lowered and much of the data collected were not at listed heights nor were the data accurate due to configurations during install.
Measurements:	nsametC1.b1: qc_wspd_arith_mean qc_rh_mean rh_mean wspd_arith_mean qc_vapor_pressure_mean vapor_pressure_mean dew_point_std wspd_vec_mean qc_wspd_vec_mean qc_wdir_vec_mean wdir_vec_mean rh_std Mean Air Temperature or Hardware Error(temp_mean) trh_err_code qc_temp_mean vapor_pressure_std wdir_vec_std temp_std qc_dew_point_mean dew_point_mean nsatwrC1.b1: rh_mean qc_wdir_vec_mean Mean Air Temperature or Hardware Error(temp_mean) dew_point_std trh_err_code vapor_pressure_std qc_vapor_pressure_mean wdir_vec_std qc_rh_mean temp_std vapor_pressure_mean qc_wspd_vec_mean rh_std qc_temp_mean qc_wspd_arith_mean wspd_vec_mean wspd_arith_mean wdir_vec_mean qc_dew_point_mean dew_point_mean

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DQRID : D090331.3

Start Date	Start Time	End Date	End Time
10/10/2008	1220	10/10/2008	1750
10/11/2008	0700	10/11/2008	1100
11/07/2008	0652	11/08/2008	1903
11/22/2008	1400	11/24/2008	0310
11/25/2008	1900	11/27/2008	0300
02/13/2009	1450	02/18/2009	1800

Subject:	NSA/MET/C1 - PWS data missing due to snow impaction
DataStreams:	nsametC1.b1
Description:	Blizzard conditions caused the optics to become impacted with snow and ice rendering the Present Weather Detector inoperative.
Measurements:	nsametC1.b1: pws_pw_code_1hr qc_pws_err_code qc_pws_pw_code_1hr pws_precip_rate_mean_1min pws_vis_mean_1min pws_pw_code_15min pws_err_code pws_pw_code_inst qc_pws_pw_code_inst pws_cumul_rain qc_pws_cumul_rain qc_pws_vis_mean_10min qc_pws_cumul_snow qc_pws_vis_mean_1min pws_cumul_snow pws_vis_mean_10min qc_pws_precip_rate_mean_1min qc_pws_pw_code_15min

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DQRID : D090331.4

Start Date	Start Time	End Date	End Time
11/01/2008	0000	12/18/2008	2100

Subject:	NSA/MET/C1 - Wind data intermittent
DataStreams:	nsametC1.b1, nsatwrC1.b1
Description:	There was a loose wire on the serial data multiplexer causing the wind data to become missing during high wind situations. The high winds caused the enclosure to vibrate making the connection intermittent.
Measurements:	nsametC1.b1: qc_wspd_arith_mean wspd_arith_mean wdir_vec_std wspd_vec_mean qc_wspd_vec_mean wdir_vec_mean qc_wdir_vec_mean nsatwrC1.b1: qc_wdir_vec_mean qc_wspd_arith_mean wspd_vec_mean wspd_arith_mean wdir_vec_mean wdir_vec_std qc_wspd_vec_mean

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DQRID : D090331.5

Start Date	Start Time	End Date	End Time
11/29/2008	1800	11/30/2008	1730
12/29/2008	1500	12/30/2008	0800
01/01/2009	0138	01/02/2009	0447
01/04/2009	0624	01/06/2009	1428
01/07/2009	1740	01/08/2009	1720
01/14/2009	0930	01/14/2009	2103

Subject:	NSA/MET/C1 - CMH data missing
DataStreams:	nsametC1.b1
Description:	The data from the CMH was missing during these times due to a failing logic board. The board was replaced.
Measurements:	nsametC1.b1: qc_cmh_dew_point qc_cmh_temp qc_cmh_sat_vapor_pressure qc_cmh_rh cmh_vapor_pressure cmh_sat_vapor_pressure cmh_temp cmh_rh qc_cmh_vapor_pressure cmh_dew_point

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