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Ha et al. 2002

Ha, S., Kuo, Y., Guo, Y., Rocken, C. and Van Hove, T. (2002). Comparison of GPS slant wet delay measurements with model simulations during the passage of a squall line. Geophysical Research Letters 29: doi: 10.1029/2002GL015891. issn: 0094-8276.

Slant wet delay (SWD) measurements from a ground-based GPS observation network provide accurate, high-resolution moisture information for mesoscale analysis. In this study, we compared SWD simulated from a 9-km MM5 model in a prefrontal squall line event against actual GPS SWD observations by NOAA's GPS network. We found that the model simulation did not capture abrupt moisture changes and small-scale variations observed in the nonisotropic component of slant wet delays associated with the squall line. This result suggests that SWD measurements can be very useful in improving model moisture analysis.

BACKGROUND DATA FILES

	Abstract

Keywords
Hydrology, Instruments and techniques, Meteorology and Atmospheric Dynamics, Mesoscale meteorology, Meteorology and Atmospheric Dynamics, Numerical modeling and data assimilation

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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