DQRs for Session: 108845 User:anna1kleneCompleted: 11-26-2007

Data Quality Reports for Session: 108845 User: anna1klene Completed: 11/26/2007

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020611.1	NSA/METTIPTWR/C2 - Data missing due to Power Failure	nsametC2.00, nsamettiptwrC2.a1, nsamettiptwrC2.b1
D021205.1	NSA/BMET/C2 - NSA/METTIPTOWER/C2 - C2 MET DATA MISSING	nsamettiptwrC2.a1, nsamettiptwrC2.b1
D030411.4	NSA/C2 - Missing met, pws, snodep data due to comm error	nsamettiptwrC2.a1, nsamettiptwrC2.b1, nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1
D040722.3	NSA/METTWR/C2 - Chilled Mirror grounding and timing issues	nsamettwr2hC2.b1
D041004.1	NSA/METTWR/C2 - Data Incorrect during Maintenance	nsamettwr2hC2.b1
D041004.2	NSA/METTWR/C2 - All Data Missing or Incorrect during Maintenance	nsamettwr2hC2.b1
D041004.3	NSA/METTWR/C2 - PWS Data Suspect	nsamettwr2hC2.b1
D041112.1	NSA/METTWR/C2 - Instrument problem	nsamettwr2hC2.b1
D050224.1	NSA/METTWR/C2 - Tower Lowered	nsamettwr2hC2.b1
D050527.3	NSA/METTWR/C2 - Incorrect Maximum for Precip Values	nsamettwr2hC2.b1
D050603.2	NSA/METTWR/C2 - CMH Data Missing During Calibration	nsamettwr2hC2.b1
D050829.1	NSA/METTWR/C2 - Tower Lowered, Data Not Representative	nsamettwr2hC2.b1
D060223.2	NSA/METTWR/C2 - Wind speed values artificially low	nsamettwr2hC2.b1
D060223.3	NSA/METTWR/C2 - CMH Data incorrect	nsamettwr2hC2.b1
D060223.4	NSA/METTWR/C2 - PWS data incorrect	nsamettwr2hC2.b1
D060406.2	NSA/METTWR/C2 - CMH Intake Fan Failure	nsamettwr2hC2.b1
D060426.2	NSA/METTWR/C2 - CMH Data Suspect	nsamettwr2hC2.b1
D060426.4	NSA/METTWR/C2 - CMH Data Suspect	nsamettwr2hC2.b1
D060818.1	NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa	nsamettwr2hC2.b1
D060913.2	NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance.	nsamettwr2hC2.b1
D060913.3	NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.	nsamettwr2hC2.b1
D060913.4	NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance.	nsamettwr2hC2.b1
D061128.1	NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow	nsamettwr2hC2.b1

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: Raw data stream - documentation not supported(Raw data stream - documentation not supported) nsamettiptwrC2.b1: Vapor Pressure out of range error(vap_pres_out_of_range_error) Std Dev of Wind Direction(wind_dir_sd) Number of timeouts reading the met tower data by height(read_timeout_count) Minimum Air Temperature Difference(temp_min_diff) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Std Dev of Air Temperature Difference(temp_sd_diff) Mean Dew Point Temperature(dew_pt_temp_mean) Air Temperature Hardware Error(temp_hardware_error) Relative Humidity out of range error(relh_out_of_range_error) Internal Temperature out of range error(internal_temp_out_of_range_error) Relative humidity maximum(relh_max) Maximum Wind Direction(wind_dir_max) Barometric Pressure(atmos_pressure) Mean Air Temperature or Hardware Error(temp_mean) Minimum Vapor Pressure(vap_pres_min) Vector-averaged Wind Speed(wind_spd_vec_avg) Wind Direction out of range error(wind_dir_out_of_range_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Temperature maximum(temp_max) Mean Vapor Pressure(vap_pres_mean) Mean Air Temperature Difference(temp_mean_diff) Maximum Vapor Pressure(vap_pres_max) Minimum Wind Direction(wind_dir_min) Std Dev of Vapor Pressure(vap_pres_sd) Std Dev of Air Temperature(temp_sd) Maximum Wind Speed(wind_spd_max) Out of Range Error(atmos_pressure_out_of_range_error) lon(lon) Relative humidity minimum(relh_min) Air Temperature out of range error(temp_out_of_range_error) Std Dev of Wind Speed(wind_spd_sd) Read Timeout Error(atmos_pressure_read_timeout_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Wind Speed out of range error(wind_spd_out_of_range_error) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Dummy altitude for Zeb(alt) Mean Wind Speed(wind_spd_mean) Maximum Dew Point Temperature(dew_pt_temp_max) Vector-averaged Wind Direction(wind_dir_vec_avg) Minimum Wind Speed(wind_spd_min) base time(base_time) Time offset of tweaks from base_time(time_offset) Minimum Dew Point Temperature(dew_pt_temp_min) Internal Voltage out of range error(internal_voltage_out_of_range) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Air Temperature Difference(temp_max_diff) lat(lat) nsamettiptwrC2.a1: Relative Humidity out of range error(relh_out_of_range_error) Internal Temperature out of range error(internal_temp_out_of_range_error) Maximum Air Temperature Difference(temp_max_diff) Vapor Pressure out of range error(vap_pres_out_of_range_error) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Minimum Vapor Pressure(vap_pres_min) Maximum Vapor Pressure(vap_pres_max) Maximum Wind Speed(wind_spd_max) Internal Voltage out of range error(internal_voltage_out_of_range) Temperature minimum(temp_min) Wind Speed out of range error(wind_spd_out_of_range_error) Barometric Pressure(atmos_pressure) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Minimum Wind Speed(wind_spd_min) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Time offset of tweaks from base_time(time_offset) Air Temperature out of range error(temp_out_of_range_error) base time(base_time) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Mean Dew Point Temperature(dew_pt_temp_mean) Mean Vapor Pressure(vap_pres_mean) Relative humidity maximum(relh_max) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Out of Range Error(atmos_pressure_out_of_range_error) Number of timeouts reading the met tower data by height(read_timeout_count) Wind Direction out of range error(wind_dir_out_of_range_error) Mean Relative Humidity(relh_mean) Minimum Air Temperature Difference(temp_min_diff) Temperature maximum(temp_max) Std Dev of Air Temperature(temp_sd) Mean Wind Speed(wind_spd_mean) Read Timeout Error(atmos_pressure_read_timeout_error) lat(lat) Std Dev of Wind Speed(wind_spd_sd) Maximum Wind Direction(wind_dir_max) Std Dev of Wind Direction(wind_dir_sd) Std Dev of Air Temperature Difference(temp_sd_diff) Vector-averaged Wind Direction(wind_dir_vec_avg) Minimum Wind Direction(wind_dir_min) Relative humidity minimum(relh_min) Mean Air Temperature Difference(temp_mean_diff) Maximum Dew Point Temperature(dew_pt_temp_max) lon(lon) Mean Air Temperature or Hardware Error(temp_mean) Dummy altitude for Zeb(alt) Air Temperature Hardware Error(temp_hardware_error) Minimum Dew Point Temperature(dew_pt_temp_min)

Back To Table of Contents

DQRID : D021205.1

Start Date	Start Time	End Date	End Time
09/22/2002	0029	11/21/2002	1935

Subject:	NSA/BMET/C2 - NSA/METTIPTOWER/C2 - C2 MET DATA MISSING
DataStreams:	nsamettiptwrC2.a1, nsamettiptwrC2.b1
Description:	Due to unknown wiring differences and pin changes by Vaisala to their Wind Speed and Direction sensors, a power feedback into the QLI data collector occurred. This caused an overload which shut the QLI data collector down. Once trouble shooting pinpointed the power feedback, wiring diagrams were created and the differences were found. Wiring was changed to prevent and remove the power feedback.
Measurements:	nsamettiptwrC2.b1: Relative humidity minimum(relh_min) Vapor Pressure out of range error(vap_pres_out_of_range_error) Air Temperature out of range error(temp_out_of_range_error) Std Dev of Wind Direction(wind_dir_sd) Number of timeouts reading the met tower data by height(read_timeout_count) Std Dev of Wind Speed(wind_spd_sd) Minimum Air Temperature Difference(temp_min_diff) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Std Dev of Air Temperature Difference(temp_sd_diff) Wind Speed out of range error(wind_spd_out_of_range_error) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Mean Wind Speed(wind_spd_mean) Mean Dew Point Temperature(dew_pt_temp_mean) Air Temperature Hardware Error(temp_hardware_error) Maximum Dew Point Temperature(dew_pt_temp_max) Relative Humidity out of range error(relh_out_of_range_error) Vector-averaged Wind Direction(wind_dir_vec_avg) Internal Temperature out of range error(internal_temp_out_of_range_error) Relative humidity maximum(relh_max) Maximum Wind Direction(wind_dir_max) Minimum Wind Speed(wind_spd_min) Mean Air Temperature or Hardware Error(temp_mean) Minimum Vapor Pressure(vap_pres_min) Vector-averaged Wind Speed(wind_spd_vec_avg) Wind Direction out of range error(wind_dir_out_of_range_error) Minimum Dew Point Temperature(dew_pt_temp_min) Temperature maximum(temp_max) Mean Vapor Pressure(vap_pres_mean) Mean Air Temperature Difference(temp_mean_diff) Internal Voltage out of range error(internal_voltage_out_of_range) Maximum Vapor Pressure(vap_pres_max) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Temperature minimum(temp_min) Mean Relative Humidity(relh_mean) Maximum Air Temperature Difference(temp_max_diff) Minimum Wind Direction(wind_dir_min) Std Dev of Vapor Pressure(vap_pres_sd) Std Dev of Air Temperature(temp_sd) Maximum Wind Speed(wind_spd_max) nsamettiptwrC2.a1: Mean Relative Humidity(relh_mean) Relative Humidity out of range error(relh_out_of_range_error) Internal Temperature out of range error(internal_temp_out_of_range_error) Maximum Air Temperature Difference(temp_max_diff) Minimum Air Temperature Difference(temp_min_diff) Vapor Pressure out of range error(vap_pres_out_of_range_error) Std Dev of Relative Humidity or Hardware Error Code(relh_sd) Minimum Vapor Pressure(vap_pres_min) Maximum Vapor Pressure(vap_pres_max) Internal Voltage out of range error(internal_voltage_out_of_range) Maximum Wind Speed(wind_spd_max) Temperature maximum(temp_max) Temperature minimum(temp_min) Wind Speed out of range error(wind_spd_out_of_range_error) Std Dev of Air Temperature(temp_sd) Mean Wind Speed(wind_spd_mean) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Std Dev of Wind Speed(wind_spd_sd) Maximum Wind Direction(wind_dir_max) Minimum Wind Speed(wind_spd_min) Dew Point Temperature Hardware Error(dew_pt_hardware_error) Std Dev of Wind Direction(wind_dir_sd) Vector-averaged Wind Direction(wind_dir_vec_avg) Std Dev of Air Temperature Difference(temp_sd_diff) Minimum Wind Direction(wind_dir_min) Relative humidity minimum(relh_min) Air Temperature out of range error(temp_out_of_range_error) Mean Air Temperature Difference(temp_mean_diff) Maximum Dew Point Temperature(dew_pt_temp_max) Std Dev of Dew Point Temperature(dew_pt_temp_sd) Mean Air Temperature or Hardware Error(temp_mean) Mean Dew Point Temperature(dew_pt_temp_mean) Mean Vapor Pressure(vap_pres_mean) Relative humidity maximum(relh_max) Std Dev of Vapor Pressure(vap_pres_sd) Vector-averaged Wind Speed(wind_spd_vec_avg) Air Temperature Hardware Error(temp_hardware_error) Number of timeouts reading the met tower data by height(read_timeout_count) Minimum Dew Point Temperature(dew_pt_temp_min) Wind Direction out of range error(wind_dir_out_of_range_error)

Back To Table of Contents

DQRID : D030411.4

Start Date	Start Time	End Date	End Time
11/25/2002	1430	03/26/2003	2229

Subject:	NSA/C2 - Missing met, pws, snodep data due to comm error
DataStreams:	nsamettiptwrC2.a1, nsamettiptwrC2.b1, nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1
Description:	An error in the communication sub-routine of the Bridgeview collection software occurred resulting in data loss from the Snow Depth sensor, Present Weather Sensor and the Barometer.
Measurements:	nsasnodepC2.a1: Snow Depth internal QC number(snow_depth_internal_QC) SR50 Serial Error(snow_depth_serial_error) Out of Range Error(snow_depth_out_of_range_error) Read Timeout Error(snow_depth_read_timeout_error) Snow Depth(snow_depth) nsapwsC2.a1: Cumulative Snow(cumulative_snow) Cumulative Snow out of range error(cumul_snow_out_of_range_error) One Minute PW code out of range error(one_min_pw_code_out_of_range_error) one Minute Visibility(one_minute_visibility) One Hour PW code out of range error(one_hour_pw_code_out_of_range_error) PWS Precipitation Rate out of range error(precip_rate_out_of_range_error) One Minute Visibility out of range error(one_minute_vis_out_of_range_error) Precipitation rate(precip_rate) NWS code(present_weather_sensor_NWS_code) Present Weather Sensor Serial Error(pws_serial_error) Cumulative Liquid Water Equivalent(cumul_liq_water_equiv) Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error) One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code) Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err) Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error) Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code) One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code) Ten Minute Visibility(ten_minute_visibility) Present Weather Sensor Read Timeout Error(pws_read_timeout_error) nsamettiptwrC2.b1: Read Timeout Error(atmos_pressure_read_timeout_error) Barometric Pressure(atmos_pressure) PTB Serial Error(atmos_pressure_PTB_serial_error) Out of Range Error(atmos_pressure_out_of_range_error) nsamettiptwrC2.a1: Barometric Pressure(atmos_pressure) Read Timeout Error(atmos_pressure_read_timeout_error) PTB Serial Error(atmos_pressure_PTB_serial_error) Out of Range Error(atmos_pressure_out_of_range_error) nsapwsC2.b1: One Minute Visibility out of range error(one_minute_vis_out_of_range_error) One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code) One Hour PW code out of range error(one_hour_pw_code_out_of_range_error) Cumulative Snow out of range error(cumul_snow_out_of_range_error) Ten Minute Visibility(ten_minute_visibility) one Minute Visibility(one_minute_visibility) Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error) Present Weather Sensor Read Timeout Error(pws_read_timeout_error) Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err) base time(base_time) Cumulative Liquid Water Equivalent(cumul_liq_water_equiv) Cumulative Snow(cumulative_snow) Present Weather Sensor Serial Error(pws_serial_error) One Minute PW code out of range error(one_min_pw_code_out_of_range_error) NWS code(present_weather_sensor_NWS_code) Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error) Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code) Precipitation rate(precip_rate) One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code) PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)

Back To Table of Contents

DQRID : D040722.3

Start Date	Start Time	End Date	End Time
11/06/2003	1719	07/14/2004	1500

Subject:	NSA/METTWR/C2 - Chilled Mirror grounding and timing issues
DataStreams:	nsamettwr2hC2.b1
Description:	From beginning of data stream, the chilled mirror data was intermittent at best. Problems with grounding and timing issues between logging instruments caused data to be incorrect and at times missing.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D041004.1

Start Date	Start Time	End Date	End Time
09/17/2004	0130	09/17/2004	0411

Subject:	NSA/METTWR/C2 - Data Incorrect during Maintenance
DataStreams:	nsamettwr2hC2.b1
Description:	The 10m tower was lowered for 2-year change-out of the met sensors. Data during this time is not representative.
Measurements:	nsamettwr2hC2.b1: Vector Averaged Wind Speed(WinSpeed_U_WVT) 5m Average Calculated Dew Point(DP5m_AVG) Arithmetic Mean Wind Speed(WinSpeed_S_WVT) Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Vector Averaged Wind Direction(WinDir_DU_WVT) Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD) 2m Average Temperature(T2m_AVG) 5m Average Temperature(T5m_AVG) 5m Average Relative Humidity(RH5m_AVG) Standard Deviation of 5m Calculated Dew Point(DP5m_STD) 5m Average Calculated Vapor Pressure(VP5m_AVG) Standard Deviation of 5m Relative Humidity(RH5m_STD) 2m Average Calculated Vapor Pressure(VP2m_AVG) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) QLI Average Reference Temperature(RefTemp_AVG) QLI Average Input Voltage(QLIVolt_AVG) Standard Deviation of 5m Temperature(T5m_STD) 2m Average Calculated Dew Point(DP2m_AVG) Standard Deviation of 2m Temperature(T2m_STD)

Back To Table of Contents

DQRID : D041004.2

Start Date	Start Time	End Date	End Time
09/17/2004	2217	09/18/2004	0047
09/18/2004	2324	09/19/2004	0307

Subject:	NSA/METTWR/C2 - All Data Missing or Incorrect during Maintenance
DataStreams:	nsamettwr2hC2.b1
Description:	All data incorrect or missing due to change of the Serial Data multiplexer and the Vaisala QLI data collector during these times.
Measurements:	nsamettwr2hC2.b1: Atmospheric Pressure(AtmPress) Chilled Mirror Calculated Vapor Pressure(VPCMH) Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD) 5m Average Temperature(T5m_AVG) Chilled Mirror Dew Point(CMHDP) 5m Average Relative Humidity(RH5m_AVG) Instant Present Weather Code(InstPWCod) 1 minute Average Visibility(AvgVis1mi) Chilled Mirror Temperature(CMHTemp) 2m Average Calculated Vapor Pressure(VP2m_AVG) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) 1 hour Present Weather Code(PWCod1hr) Cumulative Snow Sum(CumSnow) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) QLI Average Reference Temperature(RefTemp_AVG) Standard Deviation of 5m Temperature(T5m_STD) Present Weather Sensor Alarm(PWSAlarm) Standard Deviation of 2m Temperature(T2m_STD) Vector Averaged Wind Speed(WinSpeed_U_WVT) 5m Average Calculated Dew Point(DP5m_AVG) Arithmetic Mean Wind Speed(WinSpeed_S_WVT) Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Vector Averaged Wind Direction(WinDir_DU_WVT) Chilled Mirror Calculated Relative Humidity(CMHRH) 2m Average Temperature(T2m_AVG) 10 minute Average Visibility(AvgVis10m) Standard Deviation of 5m Calculated Dew Point(DP5m_STD) 5m Average Calculated Vapor Pressure(VP5m_AVG) Standard Deviation of 5m Relative Humidity(RH5m_STD) Cumulative Water Sum(CumH2O) 15 minute Present Weather Code(PWcod15mi) Battery voltage(batt_volt) QLI Average Input Voltage(QLIVolt_AVG) 2m Average Calculated Dew Point(DP2m_AVG) Precipitation Rate(PCPRate)

Back To Table of Contents

DQRID : D041004.3

Start Date	Start Time	End Date	End Time
09/18/2004	0048	09/18/2004	2323
09/19/2004	0307	09/19/2004	1530

Subject:	NSA/METTWR/C2 - PWS Data Suspect
DataStreams:	nsamettwr2hC2.b1
Description:	Data from the PWS is suspect during these times due to problems when the system was re-calibrated. System was corrected.
Measurements:	nsamettwr2hC2.b1: 1 hour Present Weather Code(PWCod1hr) Cumulative Snow Sum(CumSnow) 10 minute Average Visibility(AvgVis10m) Present Weather Sensor Alarm(PWSAlarm) Precipitation Rate(PCPRate) Instant Present Weather Code(InstPWCod) Cumulative Water Sum(CumH2O) 15 minute Present Weather Code(PWcod15mi) 1 minute Average Visibility(AvgVis1mi)

Back To Table of Contents

DQRID : D041112.1

Start Date	Start Time	End Date	End Time
11/11/2004	2017	11/12/2004	2246

Subject:	NSA/METTWR/C2 - Instrument problem
DataStreams:	nsamettwr2hC2.b1
Description:	CMH and PWS stopped reporting. Communication cable found to be broken.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) 10 minute Average Visibility(AvgVis10m) Cumulative Water Sum(CumH2O) Instant Present Weather Code(InstPWCod) 15 minute Present Weather Code(PWcod15mi) 1 minute Average Visibility(AvgVis1mi) Chilled Mirror Temperature(CMHTemp) 1 hour Present Weather Code(PWCod1hr) Cumulative Snow Sum(CumSnow) Precipitation Rate(PCPRate) Present Weather Sensor Alarm(PWSAlarm)

Back To Table of Contents

DQRID : D050224.1

Start Date	Start Time	End Date	End Time
02/15/2005	2250	02/15/2005	2330

Subject:	NSA/METTWR/C2 - Tower Lowered
DataStreams:	nsamettwr2hC2.b1
Description:	The tower was lowered to install the GroundMFR. Data from the T/RH probes and the wind speed and direction sensors are not representative during the time period.
Measurements:	nsamettwr2hC2.b1: Vector Averaged Wind Speed(WinSpeed_U_WVT) 5m Average Calculated Dew Point(DP5m_AVG) Arithmetic Mean Wind Speed(WinSpeed_S_WVT) Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT) Vector Averaged Wind Direction(WinDir_DU_WVT) Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD) 2m Average Temperature(T2m_AVG) 5m Average Temperature(T5m_AVG) 5m Average Relative Humidity(RH5m_AVG) Standard Deviation of 5m Calculated Dew Point(DP5m_STD) 5m Average Calculated Vapor Pressure(VP5m_AVG) Standard Deviation of 5m Relative Humidity(RH5m_STD) 2m Average Calculated Vapor Pressure(VP2m_AVG) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) Standard Deviation of 5m Temperature(T5m_STD) 2m Average Calculated Dew Point(DP2m_AVG) Standard Deviation of 2m Temperature(T2m_STD)

Back To Table of Contents

DQRID : D050527.3

Start Date	Start Time	End Date	End Time
11/06/2003	0000	05/26/2005	1014

Subject:	NSA/METTWR/C2 - Incorrect Maximum for Precip Values
DataStreams:	nsamettwr2hC2.b1
Description:	The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are incorrect. In communication with the manufacturer it has been found that the manual was in error. The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 999.99 mm/hr.
Measurements:	nsamettwr2hC2.b1: Precipitation Rate(PCPRate) Cumulative Water Sum(CumH2O)

Back To Table of Contents

DQRID : D050603.2

Start Date	Start Time	End Date	End Time
06/03/2005	0123	06/03/2005	0229

Subject:	NSA/METTWR/C2 - CMH Data Missing During Calibration
DataStreams:	nsamettwr2hC2.b1
Description:	The CMH was removed for it's bi-annual cleaning and calibration.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D050829.1

Start Date	Start Time	End Date	End Time
08/22/2005	1830	08/22/2005	1850

Subject:	NSA/METTWR/C2 - Tower Lowered, Data Not Representative
DataStreams:	nsamettwr2hC2.b1
Description:	The tower was lowered to remove equipment. The data from the wind sensors and T/RH probes were not representative.
Measurements:	nsamettwr2hC2.b1: Vector Averaged Wind Speed(WinSpeed_U_WVT) 5m Average Calculated Dew Point(DP5m_AVG) Arithmetic Mean Wind Speed(WinSpeed_S_WVT) Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT) Vector Averaged Wind Direction(WinDir_DU_WVT) Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD) 2m Average Temperature(T2m_AVG) 5m Average Temperature(T5m_AVG) 5m Average Relative Humidity(RH5m_AVG) Standard Deviation of 5m Calculated Dew Point(DP5m_STD) 5m Average Calculated Vapor Pressure(VP5m_AVG) Standard Deviation of 5m Relative Humidity(RH5m_STD) 2m Average Calculated Vapor Pressure(VP2m_AVG) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) Standard Deviation of 5m Temperature(T5m_STD) 2m Average Calculated Dew Point(DP2m_AVG) Standard Deviation of 2m Temperature(T2m_STD)

Back To Table of Contents

DQRID : D060223.2

Start Date	Start Time	End Date	End Time
02/19/2006	1900	02/20/2006	1627

Subject:	NSA/METTWR/C2 - Wind speed values artificially low
DataStreams:	nsamettwr2hC2.b1
Description:	Wind speed values were artificially low due to snow/ice accumulation on the anemometer cups during blizzard conditions. The heaters on the cups were not able to keep up with conditions.
Measurements:	nsamettwr2hC2.b1: Vector Averaged Wind Speed(WinSpeed_U_WVT) Arithmetic Mean Wind Speed(WinSpeed_S_WVT)

Back To Table of Contents

DQRID : D060223.3

Start Date	Start Time	End Date	End Time
02/19/2006	1405	02/20/2006	1107
02/21/2006	0619	02/21/2006	2255

Subject:	NSA/METTWR/C2 - CMH Data incorrect
DataStreams:	nsamettwr2hC2.b1
Description:	CMH data was incorrect due to blockage of intake by heavy, wet snow during blizzard conditions.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D060223.4

Start Date	Start Time	End Date	End Time
02/21/2006	1113	02/21/2006	2359

Subject:	NSA/METTWR/C2 - PWS data incorrect
DataStreams:	nsamettwr2hC2.b1
Description:	The Present Weather Sensor measurement optics were blocked by heavy, wet snow during blizzard conditions.
Measurements:	nsamettwr2hC2.b1: 1 hour Present Weather Code(PWCod1hr) Cumulative Snow Sum(CumSnow) 10 minute Average Visibility(AvgVis10m) Present Weather Sensor Alarm(PWSAlarm) Precipitation Rate(PCPRate) Instant Present Weather Code(InstPWCod) Cumulative Water Sum(CumH2O) 15 minute Present Weather Code(PWcod15mi) 1 minute Average Visibility(AvgVis1mi)

Back To Table of Contents

DQRID : D060406.2

Start Date	Start Time	End Date	End Time
04/04/2006	1914	04/06/2006	2025

Subject:	NSA/METTWR/C2 - CMH Intake Fan Failure
DataStreams:	nsamettwr2hC2.b1
Description:	Intake fan failing causing poor readings from the CMH.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D060426.2

Start Date	Start Time	End Date	End Time
04/06/2006	2212	04/11/2006	1812

Subject:	NSA/METTWR/C2 - CMH Data Suspect
DataStreams:	nsamettwr2hC2.b1
Description:	CMH data was suspect due to incorrect intake fan installed. Proper spares were not on hand.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D060426.4

Start Date	Start Time	End Date	End Time
04/20/2006	1535	04/20/2006	2110

Subject:	NSA/METTWR/C2 - CMH Data Suspect
DataStreams:	nsamettwr2hC2.b1
Description:	CMH data was suspect due to blockage of intake by snow.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D060818.1

Start Date	Start Time	End Date	End Time
11/06/2003	0000	07/12/2006	1853

Subject:	NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:	nsamettwr2hC2.b1
Description:	Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community.
Measurements:	nsamettwr2hC2.b1: Atmospheric Pressure(AtmPress)

Back To Table of Contents

DQRID : D060913.2

Start Date	Start Time	End Date	End Time
08/11/2006	1756	08/11/2006	1925

Subject:	NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance.
DataStreams:	nsamettwr2hC2.b1
Description:	CMH measured data was missing and the derived variables were incorrect due to routine maintenance.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH) Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP)

Back To Table of Contents

DQRID : D060913.3

Start Date	Start Time	End Date	End Time
08/21/2006	2228	08/21/2006	2329
08/22/2006	0233	08/22/2006	0301
08/23/2006	2214	08/23/2006	2219
08/24/2006	1617	08/24/2006	1628
08/25/2006	0257	08/25/2006	0309
09/01/2006	0158	09/01/2006	0331

Subject:	NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.
DataStreams:	nsamettwr2hC2.b1
Description:	Present Weather Sensor data was missing or incorrect due to maintenance activities repeated approximately daily as we were trying to correct another problem.
Measurements:	nsamettwr2hC2.b1: Chilled Mirror Temperature(CMHTemp) 1 hour Present Weather Code(PWCod1hr) Cumulative Snow Sum(CumSnow) 10 minute Average Visibility(AvgVis10m) Present Weather Sensor Alarm(PWSAlarm) Precipitation Rate(PCPRate) Instant Present Weather Code(InstPWCod) Cumulative Water Sum(CumH2O) 15 minute Present Weather Code(PWcod15mi) 1 minute Average Visibility(AvgVis1mi)

Back To Table of Contents

DQRID : D060913.4

Start Date	Start Time	End Date	End Time
08/11/2006	1952	08/11/2006	2006

Subject:	NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance.
DataStreams:	nsamettwr2hC2.b1
Description:	Data from the tower is not representative of local conditions due to the tower being lowered for radiometer change. Sensors not attached to the tower such as the Present Weather Sensor, the Chilled Mirror Hygrometer and the Barometer were not affected.
Measurements:	nsamettwr2hC2.b1: Vector Averaged Wind Speed(WinSpeed_U_WVT) 5m Average Calculated Dew Point(DP5m_AVG) Arithmetic Mean Wind Speed(WinSpeed_S_WVT) Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT) Vector Averaged Wind Direction(WinDir_DU_WVT) Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD) 2m Average Temperature(T2m_AVG) 5m Average Temperature(T5m_AVG) 5m Average Relative Humidity(RH5m_AVG) Standard Deviation of 5m Calculated Dew Point(DP5m_STD) 5m Average Calculated Vapor Pressure(VP5m_AVG) Standard Deviation of 5m Relative Humidity(RH5m_STD) 2m Average Calculated Vapor Pressure(VP2m_AVG) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) Standard Deviation of 5m Temperature(T5m_STD) 2m Average Calculated Dew Point(DP2m_AVG) Standard Deviation of 2m Temperature(T2m_STD)

Back To Table of Contents

DQRID : D061128.1

Start Date	Start Time	End Date	End Time
11/27/2006	0608	11/27/2006	2226

Subject:	NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow
DataStreams:	nsamettwr2hC2.b1
Description:	The 2m RH, Dew Point and Vapor Pressure values are incorrect due to the intake of the aspirated shield being blocked with snow and ice. The RH% values are artificially larger than the 5m and Chilled Mirror values.
Measurements:	nsamettwr2hC2.b1: 2m Average Calculated Vapor Pressure(VP2m_AVG) Standard Deviation of 2m Relative Humidity(RH2m_STD) 2m Average Relative Humidity(RH2m_AVG) Standard Deviation of 2m Calculated Dew Point(DP2m_STD) Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD) 2m Average Calculated Dew Point(DP2m_AVG)

Back To Table of Contents

END OF DATA