Near Real-Time GPS Sensing of Atmospheric Water Vapor (1997)
Rocken, C., T. Van Hove, and R. Ware (1997), Near Real-Time GPS Sensing of Atmospheric Water Vapor, Geophys. Res. Lett., 24(24), 3221-3224.
Near real-time GPS sensing of atmospheric water vapor
Christian Rocken, Teresa Van Hove, Randolph Ware
University Navstar Consortium (UNAVCO), University Corporation for Atmospheric Research (UCAR), Boulder, Colorado
Abstract. 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.
[See attached .pdf file for more.]