Apr. 23, 2004 NAME Conference Kursinski et al. 1
NAME GPS PW & Surface Obs. ArrayNAME GPS PW & Surface Obs. ArrayRob Kursinski (PI) A. Hahmann, W. Kolczynski,
M . Leuthold, R. Maddox, R. Mastaler, C. Minjarez U. Arizona
Y. Bar-Sever JPL NASA
S. Gutman FSL NOAA
NSF (& NOAA?)NSF (& NOAA?)
Understand relation between PW and Understand relation between PW and precipitationprecipitation
Assess and improve knowledge and Assess and improve knowledge and model representations of moisture and model representations of moisture and precipitationprecipitation
Monitor intra- & inter-annual Monitor intra- & inter-annual variationsvariations
Aid in forecastingAid in forecasting
GPS GPS GPS
Puerto Penasco
Combine existing GPS Combine existing GPS instrumentation plus 5 new sets instrumentation plus 5 new sets
of in Northwestern Mexico toof in Northwestern Mexico to
C. Watts, I. Minjarez, C. Lazaraga UNISON
Apr. 23, 2004 NAME Conference Kursinski et al. 2
GPS NAMEGPS NAME Place 5 (to 7) additional instrumentation Place 5 (to 7) additional instrumentation
sets in Mexicosets in Mexico– GPS receiver, barometer, thermometer, GPS receiver, barometer, thermometer,
hygrometer,anemometer & web camhygrometer,anemometer & web cam– Locations being finalizedLocations being finalized
MeasureMeasure column water vapor column water vapor && surface surface meteorological conditions meteorological conditions – In convectively active area in SMOIn convectively active area in SMO– In clear and cloudy conditionsIn clear and cloudy conditions– 5 to 30 minute sampling 5 to 30 minute sampling – Resolve diurnal water vapor cycleResolve diurnal water vapor cycle
Internet for near real-time access & Internet for near real-time access & monitoringmonitoring
FSL will provide GPS processing in near FSL will provide GPS processing in near real-time at 30 minute resolutionreal-time at 30 minute resolution
Begin by early to mid-JuneBegin by early to mid-June Run continuously through end of NAME Run continuously through end of NAME
Summer 04 campaignSummer 04 campaign
6 Existing SuomiNet sites of UA/UNISON: Phoenix, Tucson, Mt. Hopkins, Douglas, Puerto Penasco, Hermosillo
RR
Apr. 23, 2004 NAME Conference Kursinski et al. 3
GPS & GPS & Simulation Simulation
ResultsResults
Mt. Hopkins
Tucson
WRFGPS
Diurnal PW variations over 4 days
WRF simulation
2003
Time derivative of PW
Monsoon in Tucson
Apr. 23, 2004 NAME Conference Kursinski et al. 4
Impact of Ground GPS on Analyses & ForecastsImpact of Ground GPS on Analyses & ForecastsRapid time variations in moisture captured by GPSRapid time variations in moisture captured by GPS Significantly improve the RUC moisture analyses & forecasts Significantly improve the RUC moisture analyses & forecasts
during periods of rapid moisture evolutionduring periods of rapid moisture evolution Provides detection of radiosondes getting “wet”Provides detection of radiosondes getting “wet”
Analysis 3 hr Forecast
Courtesy of Seth Gutman, NOAA FSL
RUC w/o GPSRUC w/ GPSGPSSonde
RUC w/o GPSRUC w/ GPSGPSSonde
Tucson
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