DQRs for Session: 151923 User:wwtung1Completed: 08-01-2013

Data Quality Reports for Session: 151923 User: wwtung1 Completed: 08/01/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D111025.1	GAN/MET/M1 - Intermittent PWD alarm	ganmetM1.b1
D111102.1	GAN/RAIN/M1 - Incorrect precipitation data	ganrainM1.b1
D111117.1	GAN/MWR/M1 - Sun in the radiometer's field of view	ganmwrlosM1.b1, ganmwrtipM1.a1
D111207.1	GAN/MWR3C/M1 - Intermittent data	ganmwr3cM1.b1
D120106.1	GAN/RAIN/M1 - Precipitation not measured	ganrainM1.b1
D120124.6	GAN/MWR3C/M1 - 30-Ghz channel unstable	ganmwr3cM1.b1
D120220.1	GAN/MWR3C/M1 - Radiometer instability	ganmwr3cM1.b1
D120302.1	GAN/RAIN/M1 - Noise in sensor 3	ganrainM1.b1
D120501.1	GAN/MWR/M1 - Surface temperature failure	ganmwrlosM1.b1, ganmwrtipM1.a1

DQRID : D111025.1

Start Date	Start Time	End Date	End Time
10/04/2011	0410	10/09/2011	1200

Subject:	GAN/MET/M1 - Intermittent PWD alarm
DataStreams:	ganmetM1.b1
Description:	Intermittent backscatter alarms were tripping on the PWD suggesting something was blocking (dew) or getting into the measurement path (spider or ants). Problem resolved 10/9 with no clear indication of the cause.
Measurements:	ganmetM1.b1: pwd_pw_code_15_min pwd_id pwd_pw_code_inst pwd_pw_code_1_hr pwd_cumul_water Average 1 min visibility(pwd_avg_vis_1_min) Average 10 min visibility(pwd_avg_vis_10_min) pwd_avg_H2O_int_1_min pwd_err_code pwd_cumul_snow

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DQRID : D111102.1

Start Date	Start Time	End Date	End Time
10/01/2011	0000	10/14/2011	2359
10/21/2011	0000	10/23/2011	2359

Subject:	GAN/RAIN/M1 - Incorrect precipitation data
DataStreams:	ganrainM1.b1
Description:	The weighing bucket rain gauge was not reporting rainfall when other sensors were reporting rainfall, possibly due to configuration or connection problems.
Measurements:	ganrainM1.b1: error_latch Precipitation rate(precip_rate) weight3 total_mm frequency3 frequency2 frequency1 stat_latch total_weight Precipitation, total(precip) weight1 scans_per_min temp3 weight2 ptemp Model derived 2-meter temperature(temp2) temp1

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DQRID : D111117.1

Start Date	Start Time	End Date	End Time
10/05/2011	0000	10/10/2011	2359

Subject:	GAN/MWR/M1 - Sun in the radiometer's field of view
DataStreams:	ganmwrlosM1.b1, ganmwrtipM1.a1
Description:	Between 10/5 and 10/10 the sun was in the field of view of the radiometer approximately between 7 and 8 AM UTC. The brightness temperature display a rapid increase followed by a rapid decrease during this time.
Measurements:	ganmwrlosM1.b1: Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) Total water vapor along LOS path(vap) sky31 31.4 GHz sky brightness temperature(tbsky31) sky23 Total liquid water along LOS path(liq) ganmwrtipM1.a1: vaptip tbsky31tip tipsky31 liqtip tbsky23tip tipsky23

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DQRID : D111207.1

Start Date	Start Time	End Date	End Time
10/14/2011	1200	11/01/2011	1800

Subject:	GAN/MWR3C/M1 - Intermittent data
DataStreams:	ganmwr3cM1.b1
Description:	The data stops every day at 12 pm because of an error in the schedules tasks. The problem was fixed on 11/1/2011.
Measurements:	ganmwr3cM1.b1: wind_speed_max qc_wind_speed_avg hail_accumulation azimuth qc_wind_direction_max qc_wind_direction_min wind_direction_avg qc_rain_intensity wind_direction_max rain_accumulation qc_hail_intensity qc_time Rain Intensity(rain_intensity) qc_rain_accumulation qc_wind_direction_avg qc_surface_pressure qc_infrared_temperature Rain Duration(rain_duration) qc_hail_accumulation 30.0 GHz sky brightness temperature(tbsky30) elevation hail_intensity qc_tbsky23 surface_temperature infrared_temperature lon qc_surface_relative_humidity alt 89.0 GHz sky brightness temperature(tbsky89) time_offset qc_azimuth surface_pressure rain_peak_intensity qc_rain_duration qc_tbsky30 hail_duration Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23) qc_tbsky89 qc_elevation time wind_speed_min base_time qc_hail_duration qc_rain_peak_intensity qc_wind_speed_min qc_surface_temperature qc_wind_speed_max wind_speed_avg lat surface_relative_humidity wind_direction_min

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DQRID : D120106.1

Start Date	Start Time	End Date	End Time
11/27/2011	0929	12/09/2011	2359

Subject:	GAN/RAIN/M1 - Precipitation not measured
DataStreams:	ganrainM1.b1
Description:	After maintenance and emptying of the bucket, the data flat-lined at zero due to communications problems.
Measurements:	ganrainM1.b1: base_time time_offset volt_min lon Precipitation rate(precip_rate) time weight3 alt frequency3 frequency2 frequency1 weight1 weight2 error_latch lat total_mm stat_latch total_weight Precipitation, total(precip) scans_per_min ptemp temp3 Model derived 2-meter temperature(temp2) maintenance_cnt temp1

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DQRID : D120124.6

Start Date	Start Time	End Date	End Time
12/01/2011	0000	12/08/2011	0000

Subject:	GAN/MWR3C/M1 - 30-Ghz channel unstable
DataStreams:	ganmwr3cM1.b1
Description:	The 30-GHz channel was unstable between Dec 1 and Dec 5. Calibration was restored on Dec 9.
Measurements:	ganmwr3cM1.b1: Liquid water path best-estimate value, hourly mean(lwp) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) 30.0 GHz sky brightness temperature(tbsky30)

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DQRID : D120220.1

Start Date	Start Time	End Date	End Time
01/04/2012	0000	01/08/2012	2359
01/12/2012	0000	01/20/2012	0000
01/31/2012	0000	02/01/2012	2359
02/07/2012	2100	02/08/2012	0500

Subject:	GAN/MWR3C/M1 - Radiometer instability
DataStreams:	ganmwr3cM1.b1
Description:	The radiometer showed intermittent instability in the 30 GHz and 89 GHz channel. There was a calibration shift between Jan 4 and Jan 8 and a calibration instability between Jan 12 and Jan 20. It may be possible to recalibrate the data when a recalibration algorithm is developed.
Measurements:	ganmwr3cM1.b1: Liquid water path best-estimate value, hourly mean(lwp) Water vapor, precipitable, column-integrated on isobaric grid, from RUC model(pwv) 30.0 GHz sky brightness temperature(tbsky30) 89.0 GHz sky brightness temperature(tbsky89)

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DQRID : D120302.1

Start Date	Start Time	End Date	End Time
12/11/2011	1900	12/12/2011	1230

Subject:	GAN/RAIN/M1 - Noise in sensor 3
DataStreams:	ganrainM1.b1
Description:	Sensor 3 was noisy after data collection resumed. This noise cleared up on its own by 20111212 123000 and the noise will only effect the raw data. The ingest which produces the b1 version of the data removes the noise.
Measurements:	ganrainM1.b1: frequency3 total_weight Precipitation rate(precip_rate) Precipitation, total(precip) weight3

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DQRID : D120501.1

Start Date	Start Time	End Date	End Time
12/25/2011	0000	02/09/2012	0400

Subject:	GAN/MWR/M1 - Surface temperature failure
DataStreams:	ganmwrlosM1.b1, ganmwrtipM1.a1
Description:	Between 12/25 and 2/9 the surface temperature readings were either wrong or missing.
Measurements:	ganmwrlosM1.b1: tkair ganmwrtipM1.a1: tkair

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