DQR ID | Subject | Data Streams Affected |
---|---|---|
D060928.3 | SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry | sgpsondewnpnC1.b1 |
D120717.1 | SGP/MWR3C/C1 - Spikes in wind speed and direction | sgpmwr3cC1.b1 |
D120831.1 | SGP/MWR3C/C1 - Possible bias in 89 GHz brightness temperatures | sgpmwr3cC1.b1 |
D130423.2 | SGP/KAZR/C1 - Reprocess: Incorrect metadata radar parameters | sgpkazrblC1.b1, sgpkazrciC1.b1, sgpkazrgeC1.b1, sgpkazrspeccmaskblcopolC1.a0, sgpkazrspeccmaskblxpolC1.a0, sgpkazrspeccmaskcicopolC1.a0, sgpkazrspeccmaskcixpolC1.a0, sgpkazrspeccmaskgecopolC1.a0 |
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/03/2012 | 1509 | 07/09/2012 | 1925 |
Subject: | SGP/MWR3C/C1 - Spikes in wind speed and direction |
DataStreams: | sgpmwr3cC1.b1 |
Description: | The surface wind speed and wind direction wre occasionally spiking to large values during daylight hours. The spikes did not match well with co-located MET values. On 7/9 the wind sensor was replaced with a spare. |
Measurements: | sgpmwr3cC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/2011 | 0000 | 07/22/2012 | 0000 |
Subject: | SGP/MWR3C/C1 - Possible bias in 89 GHz brightness temperatures |
DataStreams: | sgpmwr3cC1.b1 |
Description: | The 89 GHz brightness temperatures appear slightly warm when compared to model computations. The bias appear to be about 1.5 K. This could affect the liquid water retrievals that may display a slight positive bias. |
Measurements: | sgpmwr3cC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2011 | 1017 | 04/13/2013 | 1651 |
Subject: | SGP/KAZR/C1 - Reprocess: Incorrect metadata radar parameters |
DataStreams: | sgpkazrblC1.b1, sgpkazrciC1.b1, sgpkazrgeC1.b1, sgpkazrspeccmaskblcopolC1.a0, sgpkazrspeccmaskblxpolC1.a0, sgpkazrspeccmaskcicopolC1.a0, sgpkazrspeccmaskcixpolC1.a0, sgpkazrspeccmaskgecopolC1.a0 |
Description: | Metadata in these files are incorrect. Antenna gain, beamwidth, system losses, etc. were not set in the correct file when the KAZR was originally installed. These values are not used to calculate the radar constant so reflectivity values are still correct. The correct values for the SGP KAZR are: tx_path_loss_db=0.91 dielectric_factor=0.94 h_gain_db=57.48 h_beamwidth_theta_deg=.19 h_beamwidth_phi_deg=.19 v_gain_db=57.48 v_beamwidth_theta_deg=.19 v_beamwidth_phi_deg=.19 probert_jones_correction_db=0.0 radome_loss_twoway_db=2 rx_path_loss_db_copol=2.20 rx_path_loss_db_xpol=1.77 finite_bandwidth_loss_db_ch1=1.5 finite_bandwidth_loss_db_ch2=1.5 |
Measurements: | sgpkazrspeccmaskblcopolC1.a0:
sgpkazrblC1.b1:
sgpkazrspeccmaskcicopolC1.a0:
sgpkazrspeccmaskgecopolC1.a0:
sgpkazrgeC1.b1:
sgpkazrciC1.b1:
sgpkazrspeccmaskcixpolC1.a0:
sgpkazrspeccmaskblxpolC1.a0:
|