Near real-time GPS sensing of atmospheric water vapor

Details Near real-time GPS sensing of atmospheric water vapor Near real-time GPS sensing of atmospheric water vapor

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.3221r&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 24, p. 3221-3224

Statistics

Computation

48

Meteorology And Atmospheric Dynamics: Instruments And Techniques, Atmospheric Composition And Structure: Instruments And Techniques, Meteorology And Atmospheric Dynamics: Remote Sensing

Scientific paper

We describe sensing of atmospheric column water vapor in near real-time using the Global Positioning System (GPS). We use predicted GPS orbits for automated computation of vertical column water vapor within 30 minutes of GPS data collection. Based on a 4 month comparison, near real-time GPS column water vapor agrees with radiosondes and radiometers within 2 mm rms. Our near real-time column water vapor data are posted hourly at www.unavco.ucar.edu. They are available for assimilation in numerical weather models and for other applications.

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