ENA/MWR3C/C1 - Reprocessing Notice (RID 1134)

See below for details of reprocessing that was completed on 20140902.  Original DQR 
category: 4 (Red, Incorrect).

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Occasionally the brightness temperatures drop to zero. The problem was identified with 
occasional missing lines in the raw data.

• Column precip water vapor(pwv)
• 23.8 GHz sky brightness temperature(tbsky23)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• 90.0 GHz sky brightness temperature(tbsky90)
• Liquid water path best-estimate value, hourly mean(lwp)

ENA/MWRP/C1 - Bad calibration

The radiometer was poorly calibrated following a power outage at the site.

• 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)
• Temperature at the ground station(temperature)
• Height, level of free convection(levelFreeConvection)
• 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)
• Mixing ratio, water vap., vert. prof. sfc-10km, frm retr. water vap. dens. prof(waterVaporMixingRatio)
• Liquid water path, from Tbright at 23.835 and 30.0 GHz only, using stat. retrvl.(liquidWaterPath2)
• Liquid water path, from brightness temperatures using statistical retrieval(liquidWaterPath)
• Water vapor, total precipitable, derived from Tbright using stat. retrvl.(totalPrecipitableWater)
• Height, lifting condensation level(liftingCondensationLevel)

ENA/MWRP/C1 - Reprocess: Calibration drift

The data are incorrect mostly because of fast drift in the calibration. Brightness 
temperatures become negative after 9/7/2015.

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

ENA/MWRP/C1 - Occasional outages of surface T/RH readings

Occasionally the surface temperature and relative humidity readings are not updated and 
the measurements appear flat for short times. The primary data are most likely not affected 
because the surface measurements are flatlined for short intervals when big changes are 
not expected.

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

ENA/C1 - Reprocess: Slightly incorrect location fields

Some of the instruments are being processed with the previous "GRW-Azores" lat/lon/alt 
instead of the new "ENA-Azores" lat/lon/alt. The differences are minor, but will be 
corrected. The respective GRW and ENA lat, lon, and alt values are as follows:
 
GRW  lat = 39.0911 ;
ENA lat = 39.0916 ;
GRW  lon = -28.0297 ;
ENA  lon = -28.0257 ;
GRW  alt = 26 ;
ENA  alt = 30.48 ;

• North latitude(lat)
• Altitude above mean sea level(alt)
• East longitude(lon)