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.

• vaptip
• bb31
• tbsky23tip
• bbn23
• bbn31
• tbsky31tip
• tipsky23
• bb23
• tipsky31
• liqtip

• sky23
• bbn23
• Total water vapor along LOS path(vap)
• bbn31
• Total liquid water along LOS path(liq)
• sky31
• 31.4 GHz sky brightness temperature(tbsky31)
• bb31
• Radiation, longwave, brightness temperature, 23.8 GHz(tbsky23)
• bb23

GRW/MWRP/M1 - Reprocessed: Updated calibration coefficients

On 5/15 the K-band calibrations were updated with coefficients derived from tip curves.  
The 20090501-20090515 data were reprocessed to apply the updated calibration coefficients.

• 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)
• Retrieved water vapor mixing ratio(waterVaporMixingRatio)

GRW/SONDE/M1 - Wind data missing

A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and no data was collected.  A workaround was 
developed to allow sondes to be launched without collecting wind data.

• Northward Wind Component(v_wind)
• Eastward Wind Component(u_wind)
• wstat
• Mean Wind Speed(wspd)

GRW/MWRP/M1 - Missing data

Data are missing and unrecoverable.

• temperatureRmsError
• Air temperature(temperature)
• liquidWaterContentRmsError
• Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity)
• blackbodyTemperature
• Height, level of free convection(levelFreeConvection)
• Pressure, equilibrium level(equilibriumLevelPres)
• Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity)
• Energy, potential, convective, available, from RUC model(cape)
• totalPrecipitableWaterRmsError
• Retrieved dewpoint temperature(dewpointTemperature)
• Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature)
• dataQualityFlags
• totalPrecipitableWater2RmsError
• Pressure, associated geometric height, at altitude, NGM model output(height)
• waterVaporDensityRmsError
• lon
• 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)
• Pressure, level of free convection(levelFreeConvectionPres)
• Barometric pressure(pressure)
• 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
• liquidWaterPath2RmsError
• time_offset
• frequency
• elevation
• alt
• liquidWaterPathRmsError
• base_time
• 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)
• time
• lat
• 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
• Retrieved water vapor mixing ratio(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.

• 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)
• Retrieved water vapor mixing ratio(waterVaporMixingRatio)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)

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

Retrieval coefficients were updated to screen for some bad soundings

• liqtip

• Total liquid water along LOS path(liq)