| Description: | Message from Bill Moninger, Forecast Systems Laboratory
on April 29, 1999
Today, we implemented changes in the ACARS QC processing that effect the
dewpoint data in both the java and non-java displays, as well as in the
downloadable netCDF data.
The new netCDF version number is 2.2. We processed this data retroactively
for a few hours, so this version starts at 21 UTC on 28 April 1999.
This version fixed a bug in the processing of vapor-sensing aircraft that
caused the dewpoint to be 0 degree to 5 degree (C) too cold, with the largest errors
occurring at high mach numbers (which occur at high altitudes).
Generally errors in dewpoint below 15,000 ft have been less than 3 degree C. |
| Measurements: | twpacarsX1.a1: - Wind direction, at altitude(windDir)
- Wind speed, peak vertical acceleration, at altitude(vertAccel)
- interpolatedTime
- timeReceived
- missingInputMinutes
- maxSecs
- destAirport
- altitude
- mach
- longitude
- Water vapor, mixing ratio, at altitude(waterVaporMR)
- Wind speed, turbulence, at altitude, median eddy dissipation rate(medTurbulence)
- windDirError
- windSpeedError
- rh_probe
- maxDate
- errorType
- Wind speed, at altitude(windSpeed)
- heading
- rollFlag
- dataDescriptor
- interpolatedLL
- Wind speed, turbulence, at altitude, maximum eddy dissipation rate(maxTurbulence)
- origAirport
- waterVaporQC
- Air temperature(temperature)
- correctedFlag
- minSecs
- timeObs
- speedError
- rptStation
- bounceError
- en_tailNumber
- Temperature, dewpoint, at altitude(dewpoint)
- tempError
- minDate
- latitude
gecacarsX1.a1: - tempError
- rollFlag
- windSpeedError
- Wind speed, turbulence, at altitude, median eddy dissipation rate(medTurbulence)
- rh_probe
- missingInputMinutes
- correctedFlag
- dataDescriptor
- origAirport
- Wind speed, peak vertical acceleration, at altitude(vertAccel)
- errorType
- rptStation
- en_tailNumber
- timeReceived
- Wind speed, at altitude(windSpeed)
- speedError
- minSecs
- Air temperature(temperature)
- altitude
- bounceError
- Temperature, dewpoint, at altitude(dewpoint)
- maxDate
- heading
- destAirport
- windDirError
- timeObs
- minDate
- mach
- interpolatedLL
- interpolatedTime
- maxSecs
- latitude
- waterVaporQC
- longitude
- Water vapor, mixing ratio, at altitude(waterVaporMR)
- Wind speed, turbulence, at altitude, maximum eddy dissipation rate(maxTurbulence)
- Wind direction, at altitude(windDir)
sgpacarsX1.a1: - heading
- Wind speed, turbulence, at altitude, maximum eddy dissipation rate(maxTurbulence)
- en_tailNumber
- latitude
- rptStation
- errorType
- interpolatedTime
- windDirError
- maxSecs
- windSpeedError
- Wind speed, peak vertical acceleration, at altitude(vertAccel)
- waterVaporQC
- timeObs
- altitude
- maxDate
- origAirport
- Temperature, dewpoint, at altitude(dewpoint)
- interpolatedLL
- Wind speed, at altitude(windSpeed)
- Wind speed, turbulence, at altitude, median eddy dissipation rate(medTurbulence)
- Wind direction, at altitude(windDir)
- dataDescriptor
- Water vapor, mixing ratio, at altitude(waterVaporMR)
- speedError
- minDate
- Air temperature(temperature)
- longitude
- rh_probe
- timeReceived
- missingInputMinutes
- mach
- tempError
- bounceError
- destAirport
- correctedFlag
- minSecs
- rollFlag
nsaacarsX1.a1: - maxSecs
- bounceError
- timeReceived
- interpolatedLL
- windDirError
- destAirport
- rh_probe
- latitude
- Wind speed, turbulence, at altitude, median eddy dissipation rate(medTurbulence)
- Wind speed, peak vertical acceleration, at altitude(vertAccel)
- mach
- Wind speed, at altitude(windSpeed)
- altitude
- tempError
- longitude
- windSpeedError
- origAirport
- Wind speed, turbulence, at altitude, maximum eddy dissipation rate(maxTurbulence)
- Temperature, dewpoint, at altitude(dewpoint)
- errorType
- missingInputMinutes
- waterVaporQC
- en_tailNumber
- Air temperature(temperature)
- maxDate
- speedError
- correctedFlag
- dataDescriptor
- interpolatedTime
- minDate
- timeObs
- Wind direction, at altitude(windDir)
- rollFlag
- rptStation
- Water vapor, mixing ratio, at altitude(waterVaporMR)
- minSecs
- heading
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