GRW/MWR/M1 - Loose mirror

The data from the MWR were suspicious and became progressively worse. The problem was 
traced back to the fact that the screw that keeps the mirror in place had become loose and 
the mirror was freely rotating. 

The mirror was tightened on 6/9/2009, however the measurements were noisy until 6/16, when 
the instrument was rebooted and all the connections checked. 

Measurements between 5/1 and 6/9 should not be used. Data between 6/9 and 6/16 are usable, 
although they are very noisy.

• Mean 31.4 GHz sky brightness temperature(tbsky31)
• sky23
• bbn23
• Total water vapor along LOS path(vap)
• bb31
• bb23
• 23.8 GHz sky brightness temperature(tbsky23)
• bbn31
• Water, liquid, total along line-of-sight path(liq)
• sky31

GRW/MWRP/M1 - Missing data

Data are missing and unrecoverable.

• MET air temperature(temperature)
• temperatureRmsError
• blackbodyTemperature
• Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity)
• liquidWaterContentRmsError
• Height, level of free convection(levelFreeConvection)
• Pressure, equilibrium level(equilibriumLevelPres)
• Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity)
• CAPE, Convective available potential energy(cape)
• totalPrecipitableWaterRmsError
• Temperature, dew point, vert. prof. sfc-10km, from water vapor density prof.(dewpointTemperature)
• Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature)
• dataQualityFlags
• totalPrecipitableWater2RmsError
• Pressure, associated geometric height, at altitude, NGM model output(height)
• East longitude(lon)
• waterVaporDensityRmsError
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)
• surface pressure(pressure)
• Pressure, level of free convection(levelFreeConvectionPres)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Height, equilibrium level(equilibriumLevel)
• Microwave brightness temperature(brightnessTemperature)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)
• azimuth
• frequency
• liquidWaterPath2RmsError
• time_offset
• elevation
• Altitude above mean sea level(alt)
• base_time
• liquidWaterPathRmsError
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• infraredTemperature
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• North latitude(lat)
• time
• Pressure, barometric. at instrument height (1 or 2 m)(surfacePressure)
• Height, lifting condensation level(liftingCondensationLevel)
• Pressure, lifting condensation level(liftingCondensationLevelPres)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• wetWindowFlag
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)

GRW/MWRP/M1 - Reprocessed: Re-calibration

After the new dewblower was installed there was a shift in the calibration of the 
instrument. The instrument was calibrated on 8/29. Data between 8/19 and 8/29 have been 
reprocessed to apply the new calibrations.  Reprocessed data were archived in December 2009.

• MET air temperature(temperature)
• Microwave brightness temperature(brightnessTemperature)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)

GRW/MWR/M1 - Reprocessed: Biased LWP retrievals-Updated retrieval coefficients

Retrieval coefficients were updated to screen for some bad soundings.

Data were reprocessed 20100507.

• Water, liquid, total along line-of-sight path(liq)