| Subject: | SGP/MWR/MWRAVG/B1 - Incorrect precipitable water vapor values |
| DataStreams: | sgpmwrlosB1.a1, sgpmwrlosB1.b1, sgpmwrB1.00, sgp5mwravgB1.c1, sgpmwrlosB1.00,
sgpmwrlosB1.a0
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| Description: | The precipitable water vapor was negative which is unreasonable. At the same time the
brightness temperature in the 23.8 GHz channel was less than that in the 31.4 GHz channel for
apparently clear skies. This is also unreasonable. |
| Suggestions: | Do not use data |
| Measurements: | sgpmwrB1.00: - (Raw data stream - documentation not supported)
more
sgp5mwravgB1.c1: - 31.4 GHz sky brightness temperature(31tbsky)
- 23.8 GHz sky brightness temperature(23tbsky)
- Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
- Number of data points averaged for 23tbsky, 31tbsky, vap & liq(num_obs)
- Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
- Total water vapor along LOS path(vap)
- Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
- Standard deviation about the mean for the total liquid water amount(liq_sdev)
- Averaged total liquid water along LOS path(liq)
- Standard deviation about the mean for the total water vapor amount(vap_sdev)
more
sgpmwrlosB1.a1: - Actual elevation angle(actel)
- Water on Teflon window (1=WET, 0=DRY)(wet_window)
- Actual Azimuth(actaz)
- IR Brightness Temperature(ir_temp)
- 31.4 GHz sky brightness temperature(31tbsky)
- 23.8 GHz sky brightness temperature(23tbsky)
- Total water vapor along LOS path(vap)
- Averaged total liquid water along LOS path(liq)
more
sgpmwrlosB1.00: - (Raw data stream - documentation not supported)
more
sgpmwrlosB1.a0: - 31.4 GHz sky+noise injection signal(31skyn)
- 23.8 GHz sky+noise injection signal(23skyn)
- Water on Teflon window (1=WET, 0=DRY)(wet_window)
- 23.8 GHz Blackbody signal(23bb)
- 31.4 GHz noise injection brightness temperature(31unoise)
- Mixer kinetic (physical) temperature(tkxc)
- 31.4 GHz sky signal(31sky)
- 23.8 GHz noise injection brightness temperature(23unoise)
- 31.4 GHz blackbody+noise injection signal(31bbn)
- Actual elevation angle(actel)
- 31.4 GHz sky brightness temperature(31tbsky)
- 23.8 GHz blackbody+noise injection signal(23bbn)
- 23.8 GHz sky brightness temperature(23tbsky)
- IR Brightness Temperature(ir_temp)
- Blackbody kinetic temperature(tkbb)
- Averaged total liquid water along LOS path(liq)
- Which LOS configuration(losn)
- 31.4 GHz blackbody(31bb)
- 23.8 GHz sky signal(23sky)
- Total water vapor along LOS path(vap)
- Actual Azimuth(actaz)
more
sgpmwrlosB1.b1: - Water on Teflon window (1=WET, 0=DRY)(wet_window)
- Averaged total liquid water along LOS path(liq)
- Total water vapor along LOS path(vap)
- Mean 31.4 GHz sky brightness temperature(tbsky31)
- IR Brightness Temperature(ir_temp)
- Mean 23.8 GHz sky brightness temperature(tbsky23)
more
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