NSA/MWRP/C1 - Missing data

Data are missing and unrecoverable.

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

NSA/MWRP/C1 - Reprocessed: Negative bias in LWP

After the radiometer was installed at the site following extensive refurbishing the 
retrieved LWP had a large negative bias (~-0.07 mm). The calibration coefficients were modified 
and that resolved the problem. Data for February, March and part of April were 
reprocessed with the revised calibrations and archived in July.

• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Microwave brightness temperature(brightnessTemperature)
• 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)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)

NSA/MWRP/C1 - Reprocess: V-band channels too cold

The calibrations of 7/20 and 7/29 were slightly affected by high humidity at the site. As 
a result the V-band channels were calibrated too cold.
On 8/26 I modified the mp.cfg file and reinstated the calibration coefficients derived on 
3/20/2009.

Data between 7/20 and 8/26 will be reprocessed with one set of calibration coefficients.

• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• Air temperature(temperature)
• Microwave brightness temperature(brightnessTemperature)

NSA/MWRP/C1 - Reprocessed: LN2 calibration

The instrument was calibrated on 3/5/2010. These latest calibration coefficients have been 
applied to February data as well to mitigate the high bias in LWP observed in February.  
Reprocessed data were archived April 2010.

• Pressure, level of free convection(levelFreeConvectionPres)
• Height, lifting condensation level(liftingCondensationLevel)
• Temperature, virtual, vert. prof. sfc-10km, fr. wtr. vap. dens. and temp. prof.(virtualTemperature)
• Pressure, lifting condensation level(liftingCondensationLevelPres)
• Height, level of free convection(levelFreeConvection)
• Pressure, equilibrium level(equilibriumLevelPres)
• Liquid water content, cloud, vert. prof. sfc.-10km, from Tbright stat. retrvl.(liquidWaterContent)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Height, equilibrium level(equilibriumLevel)
• Retrieved dewpoint temperature(dewpointTemperature)
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Microwave brightness temperature(brightnessTemperature)
• Retrieved water vapor mixing ratio(waterVaporMixingRatio)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)

NSA/MWRP/C1 - IRT readings bias

The MWRP IRT appeared to not be reaching its lower limit (-50 C / 223.15 K). The readings 
stayed around 230 K although the sky was clear. On 6/16 the site technicians noticed that 
the gold mirror was scratched and appeared to have a deposit on it. The mirror was 
replaced and on 6/17 the lens was cleaned. These actions solved the problem.

• infraredTemperature

NSA/MWRP/C1 - Reprocess: Incorrect calibration

The calibration of the MWRP drifted starting on September 21. The drift caused a negative 
LWP. On 10/21 I modified the calibration of the 30 GHz channel in an attempt to correct 
for the negative bias in LWP. The change in the calibration however caused an excessive 
increase in the PWV retrievals. The original calibration values were reinstated on 10/29. I 
then recomputed the temperature coefficients as well as the noise diode injection 
temperature from tip curves and uploaded the new values on Nov 15 2010.

• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Density, water vapor, prof. from sfc.-10 km, der. from Tbright stat. retrvl.(waterVaporDensity)
• 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)
• Microwave brightness temperature(brightnessTemperature)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Retrieved water vapor mixing ratio(waterVaporMixingRatio)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Water vapor, tot. precipitable, from Tbright, 23.835 & 30.0 GHz, stat. retrvl.(totalPrecipitableWater2)