| DQR ID | Subject | Data Streams Affected |
|---|
| D050811.5 | SGP/SONDE/C1 - Bad T/RH and surface P. | sgpsondewnpnC1.b1 |
| D050912.2 | SGP/SONDE/C1 - Temperature/RH incorrect | sgplssondeC1.c1, sgpsondewnpnC1.b1 |
| D050915.1 | SGP/MWR/C1 - Instrument noise problem | sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgp1mwravgC1.c1, sgp5mwravgC1.c1 |
| D050919.6 | SGP/MWR/C1 - Instrument offline | sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgp1mwravgC1.c1, sgp5mwravgC1.c1 |
| D051011.6 | SGP/MWR/C1 - New software version (4.15) installed | sgpmwrlosC1.b1, sgpmwrtipC1.a1 |
| D051027.1 | SGP/SONDE/C1 - Bad RH Data | sgpsondewnpnC1.b1 |
| D051123.1 | SGP/MWR/C1 - computer problem | sgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1 |
| D051207.3 | SGP/MWR/C1 - Power supply failure | sgpmwrC1.00, sgpmwrlosC1.b1, sgpmwrtipC1.a1 |
| D060208.2 | SGP/SONDE/C1 - Mixed use of RS92-SGP and RS92-KL radiosondes | sgpsondewnpnC1.b1 |
| D060227.2 | SGP/SONDE/C1 - Soundings done as part of dual-sonde flights | sgpsondewnpnC1.b1 |
| D060630.1 | SGP/SONDE/C1 - No Wind/Lat/Lon Data in Sonde Files | sgpsondewnpnC1.b1 |
| Subject: | SGP/SONDE/C1 - Temperature/RH incorrect |
| DataStreams: | sgplssondeC1.c1, sgpsondewnpnC1.b1
|
| Description: | The temperature throughout this sounding is too high and as a result the RH values will be
incorrect as well. I'm not sure what is wrong here but the operators noted reasonable
values (18.1 degC, 87%) in the log before launch. Review of the raw data, however, shows
the sonde reporting temperatures nearly 20 degC higher. I suppose it is possible that
the operator entered into the log the reference temperature from the GC25 ground check set
rather than the temperature reported by the sonde - I can't think of any other
explanation - there is no doubt that the temperature sensor on this sonde was bad. |
| Measurements: | sgpsondewnpnC1.b1: - Surface dew point temperature(dp)
- Dry-Bulb Temperature(tdry)
- Relative humidity scaled, by total column amount from MWR(rh)
sgplssondeC1.c1: - Relative humidity scaled, by total column amount from MWR(rh)
- Dry-Bulb Temperature(tdry)
|
| Subject: | SGP/MWR/C1 - Instrument noise problem |
| DataStreams: | sgpmwrlosC1.b1, sgpmwrtipC1.a1, sgp1mwravgC1.c1, sgp5mwravgC1.c1
|
| Description: | Various variables including the mixer temperatures were very noisy. After several attempts
to fix the problem, the instrument was taken off line and returned to the manufacturer
for repair. |
| Measurements: | sgpmwrtipC1.a1: - 31.4 GHz blackbody+noise injection signal(bbn31)
- 31.4 GHz Blackbody signal(bb31)
- Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
- Noise diode mount temperature(tknd)
- Water on Teflon window (1=WET, 0=DRY)(wet_window)
- Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
- Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
- Blackbody kinetic temperature(tkbb)
- 23.8 GHz Blackbody signal(bb23)
- Temperature correction coefficient at 23.8 GHz(tc23)
- Ambient temperature(tkair)
- Mixer kinetic (physical) temperature(tkxc)
- 23.8 GHz blackbody+noise injection signal(bbn23)
- Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
- 31.4 GHz sky signal(tipsky31)
- Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
- Temperature correction coefficient at 31.4 GHz(tc31)
- Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
- 23.8 GHz sky signal(tipsky23)
- Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
- Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
- 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
- 31.4 GHz goodness-of-fit coefficient(r31)
- 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
- 23.8 GHz goodness-of-fit coefficient(r23)
sgp5mwravgC1.c1: - Flag indicating where the initial surface water measurements are from: 0-> SMOS,
1-> AERI(water_flag) - Fraction of data in averaging interval with water on the Teflon window(water_flag_fraction)
- Averaged 23.8 GHz sky brightness temperature(23tbsky)
- Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
- Number of data points averaged out of 15(number_obs_averaged)
- Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
- Standard deviation about the mean for the total water vapor amount(vap_sdev)
- Mean total liquid water amount along LOS path(liq)
- Mean IR brightness temperature(ir_temp)
- Probability of level change in ratio of averaged brightness temps(prob_level_change)
- Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
- Probability of slope change in ratio of averaged brightness temps(prob_slope_change)
- Probability of outlier in ratio of averaged brightness temps(prob_outlier)
- Mean 23.8 GHz sky brightness temperature(tbsky23)
- Mean 31.4 GHz sky brightness temperature(tbsky31)
- Averaged 31.4 GHz sky brightness temperature(31tbsky)
- Standard deviation about the mean for the total liquid water amount(liq_sdev)
- Mean total water vapor amount along LOS path(vap)
sgpmwrlosC1.b1: - 31.4 GHz sky signal(sky31)
- Water on Teflon window (1=WET, 0=DRY)(wet_window)
- 31.4 GHz blackbody+noise injection signal(bbn31)
- Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
- 23.8 GHz sky signal(sky23)
- Mean 31.4 GHz sky brightness temperature(tbsky31)
- Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
- Mean total liquid water amount along LOS path(liq)
- Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
- 31.4 GHz Blackbody signal(bb31)
- Temperature correction coefficient at 31.4 GHz(tc31)
- Blackbody kinetic temperature(tkbb)
- Sky/Cloud Infra-Red Temperature(sky_ir_temp)
- Mean total water vapor amount along LOS path(vap)
- Ambient temperature(tkair)
- 23.8 GHz Blackbody signal(bb23)
- Mean 23.8 GHz sky brightness temperature(tbsky23)
- Mixer kinetic (physical) temperature(tkxc)
- Noise diode mount temperature(tknd)
- Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
- 23.8 GHz blackbody+noise injection signal(bbn23)
- Temperature correction coefficient at 23.8 GHz(tc23)
sgp1mwravgC1.c1: - Mean 23.8 GHz sky brightness temperature(tbsky23)
- Fraction of data in averaging interval flagged by Dynamic Linear Model as poten(dlm_flag_fraction)
- Standard deviation about the mean for the total water vapor amount(vap_sdev)
- Averaged 23.8 GHz sky brightness temperature(23tbsky)
- Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
- Mean IR brightness temperature(ir_temp)
- Mean total water vapor amount along LOS path(vap)
- Number of contiguous periods in averaging interval flagged by Dynamic Linear Mo(dlm_flag_periods)
- Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
- Standard deviation about the mean for the total liquid water amount(liq_sdev)
- Number of contiguous periods in averaging interval with water on Teflon window(water_flag_periods)
- Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
- Fraction of data in averaging interval with water on the Teflon window(water_flag_fraction)
- Averaged 31.4 GHz sky brightness temperature(31tbsky)
- Mean total liquid water amount along LOS path(liq)
- Mean 31.4 GHz sky brightness temperature(tbsky31)
|
| Subject: | SGP/MWR/C1 - New software version (4.15) installed |
| DataStreams: | sgpmwrlosC1.b1, sgpmwrtipC1.a1
|
| Description: | A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software
had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier
problem. The software upgrade corrected the earlier problem but introduced a new one that
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip
curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these
problems.
The new MWR software, version 4.15, was installed on 08/04/2005. As a consequence of this
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to
~50s. |
| Measurements: | sgpmwrtipC1.a1: - 31.4 GHz blackbody+noise injection signal(bbn31)
- Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
- 31.4 GHz Blackbody signal(bb31)
- Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
- Noise diode mount temperature(tknd)
- 31.4 GHz sky signal(tipsky31)
- Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
- Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
- Temperature correction coefficient at 31.4 GHz(tc31)
- Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
- 23.8 GHz Blackbody signal(bb23)
- Blackbody kinetic temperature(tkbb)
- Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
- 23.8 GHz sky signal(tipsky23)
- Ambient temperature(tkair)
- Temperature correction coefficient at 23.8 GHz(tc23)
- Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
- Mixer kinetic (physical) temperature(tkxc)
- Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
- 23.8 GHz blackbody+noise injection signal(bbn23)
- 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
- 31.4 GHz goodness-of-fit coefficient(r31)
- 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
- 23.8 GHz goodness-of-fit coefficient(r23)
sgpmwrlosC1.b1: - 31.4 GHz sky signal(sky31)
- Noise diode mount temperature(tknd)
- 31.4 GHz blackbody+noise injection signal(bbn31)
- Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
- Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
- 23.8 GHz sky signal(sky23)
- Mean 31.4 GHz sky brightness temperature(tbsky31)
- 23.8 GHz blackbody+noise injection signal(bbn23)
- Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
- Mean total liquid water amount along LOS path(liq)
- Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
- 31.4 GHz Blackbody signal(bb31)
- Temperature correction coefficient at 31.4 GHz(tc31)
- Blackbody kinetic temperature(tkbb)
- Sky/Cloud Infra-Red Temperature(sky_ir_temp)
- Mean total water vapor amount along LOS path(vap)
- Ambient temperature(tkair)
- 23.8 GHz Blackbody signal(bb23)
- Mean 23.8 GHz sky brightness temperature(tbsky23)
- Mixer kinetic (physical) temperature(tkxc)
- Temperature correction coefficient at 23.8 GHz(tc23)
|