GPS-Derived Precipitable Water Compared with the Air Force Weather Agency's Mm5 Model Output
Patricia A. Vollmer
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GPS-Derived Precipitable Water Compared with the Air Force Weather Agency's Mm5 Model Output

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Current moisture initialization sources lack the spatial and temporal resolution required for mesoscale moisture forecast accuracy critical for military operations. The Global Positioning System (GPS) satellite constellation provides an opportunity to extract accurate moisture observations based on the refraction of the GPS signal through the troposphere. GPS-derived precipitable water (PW) from two research areas was independently compared with the Air Force Weather Agency's (AFWA's) MM5 PW model output. Results were concurrent with similar studies comparing GPS-derived PW with numerical weat...