PGH/MWRP/M1 - Incorrect retrievals

Retrievals from this instrument are affected by the wrong surface temperature and humidity 
readings. Retrievals are wrong until 2/2/2012 when the dewblower was replaced.

• Pressure, lifting condensation level(liftingCondensationLevelPres)
• totalPrecipitableWater2RmsError
• liquidWaterPath2RmsError
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Pressure, level of free convection(levelFreeConvectionPres)
• liquidWaterContentRmsError
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)
• Height, lifting condensation level(liftingCondensationLevel)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• totalPrecipitableWaterRmsError
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• waterVaporDensityRmsError
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Temperature, dewpoint, profile 0-3 km, physically retrieved from AERI radiances(dewpointTemperature)
• Height, level of free convection(levelFreeConvection)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)
• liquidWaterPathRmsError
• MET air temperature(temperature)

PGH/MWRP/M1 - Reprocessed: Time corrected

The computer clock had the daylight saving on so the measurements time was off 1 hr. The 
setting was changed on 7/15. Data for 20110620-20110715 were time corrected and 
reprocessed.

• time
• time_offset

PGH/MWRP/M1 - Reprocessed: Incorrect V-band calibration

The V-band calibration was incorrect. An LN2 calibration was conducted and the data were 
reprocessed with updated calibrations at the conclusion of the campaign.  The reprocessed 
data were archived in July 2012.

• Pressure, lifting condensation level(liftingCondensationLevelPres)
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• Pressure, level of free convection(levelFreeConvectionPres)
• Pressure, equilibrium level(equilibriumLevelPres)
• Height, lifting condensation level(liftingCondensationLevel)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• Height, equilibrium level(equilibriumLevel)
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• Microwave brightness temperature(brightnessTemperature)
• Temperature, dewpoint, profile 0-3 km, physically retrieved from AERI radiances(dewpointTemperature)
• Height, level of free convection(levelFreeConvection)
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)
• MET air temperature(temperature)
• Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)

PGH/MWRP/M1 - Reprocessed: Incorrect retrieval coefficients

All retrievals were incorrect because the retrieval coefficients were not available for 
this site. Data were reprocessed at the end of the deployment after the coefficients were 
derived by the mentor.  Reprocessed data were archived in July 2012.

• Pressure, lifting condensation level(liftingCondensationLevelPres)
• totalPrecipitableWater2RmsError
• liquidWaterPath2RmsError
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Pressure, level of free convection(levelFreeConvectionPres)
• liquidWaterContentRmsError
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)
• Height, lifting condensation level(liftingCondensationLevel)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• totalPrecipitableWaterRmsError
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• temperatureRmsError
• waterVaporDensityRmsError
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Temperature, dewpoint, profile 0-3 km, physically retrieved from AERI radiances(dewpointTemperature)
• Height, level of free convection(levelFreeConvection)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• liquidWaterPathRmsError
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)
• MET air temperature(temperature)
• Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)

PGH/MWRP/M1 - Missing data

Data are missing and unrecoverable.

• infraredTemperature
• totalPrecipitableWater2RmsError
• Humidity, relative, prof. from sfc.-10km, from water vap. dens. and temp. prof.(relativeHumidity)
• frequency
• time
• Pressure, level of free convection(levelFreeConvectionPres)
• Energy, potential, convective, available, from RUC model(cape)
• liquidWaterContentRmsError
• Height, lifting condensation level(liftingCondensationLevel)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)
• Pressure, associated geometric height, at altitude, NGM model output(height)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• Height, equilibrium level(equilibriumLevel)
• Pressure, barometric. at instrument height (1 or 2 m)(surfacePressure)
• Microwave brightness temperature(brightnessTemperature)
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)
• wetWindowFlag
• liquidWaterPathRmsError
• Altitude above mean sea level(alt)
• azimuth
• MET air temperature(temperature)
• Height, cloud base, height where IR temp. matches retrieved temp. profile(cloudBaseHeight)
• Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature)
• Pressure, lifting condensation level(liftingCondensationLevelPres)
• liquidWaterPath2RmsError
• Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Pressure, equilibrium level(equilibriumLevelPres)
• base_time
• North latitude(lat)
• East longitude(lon)
• blackbodyTemperature
• totalPrecipitableWaterRmsError
• Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity)
• dataQualityFlags
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• temperatureRmsError
• waterVaporDensityRmsError
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Height, level of free convection(levelFreeConvection)
• Temperature, dewpoint, profile 0-3 km, physically retrieved from AERI radiances(dewpointTemperature)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Model surface pressure for the station(pressure)
• time_offset
• elevation

PGH/MWRP/M1 - Channel interference

The 23.834-GHz channel was displaying high noise levels. It started with intermittent 
noise, but became more persistent with time. The problem was identified as interference from 
the near-by MWR. On 12/7 the radiometers were re-oriented and the noise level went down.

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

PGH/MWRP/M1 - Incorrect surface temperature and humidity

The surface readings of temperature and humidity are wrong. The sensor needs to be 
replaced. The sensor and dewblower were replaced on Feb 2 2012.

The incorrect surface temperature and humidity will cause wrong retrievals as well.

• Humidity, relative, at instrument height (1 or 2 m)(surfaceRelativeHumidity)
• Density, water vapor, at instrument height (1 or 2 m)(surfaceWaterVaporDensity)
• Pressure, barometric. at instrument height (1 or 2 m)(surfacePressure)
• Temperature, air, at instrument height (1 or 2 m)(surfaceTemperature)