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GPS meteorology and the phenomenology of precipitable water

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Item Summary

Title: GPS meteorology and the phenomenology of precipitable water
Authors: Foster, James H.
Advisor: Bevis, Michael
Keywords: Global Positioning System
Water vapor, Atmospheric
Artificial satellites in navigation
Precipitation (Meteorology)
Issue Date: 2002
Publisher: University of Hawaii at Manoa
Abstract: Three studies of precipitable water using the Global Positioning System are presented. The first study finds that precipitable water in Hawaiʻi is best described by a lognormal distribution. The long-term average value of precipitable water declines exponentially with height, but the dispersion of precipitable water declines more linearly. The change in skewness of the distributions is also linear, although in this case it increases with elevation. The second and third studies use GPS meteorology to investigate a climatological and a meteorological event respectively. First, the effect of the 1997-1998 El Nino on precipitable water in the western tropical Pacific is studied and found to be consistent with a model relating the formation of an anomalous high-pressure ridge to the El Nino episode. Finally, the details of the precipitable water field for the Kaʻu Storm, November 2000 are examined. The results highlight the role of topography in controlling the location of convection, The observed correlation between the precipitable water and rainfall is used to generate estimates of rainfall based on GPS data, Comparing the GPS precipitable water estimates with those from a weather model indicates that the underestimates of rainfall produced by the weather model are probably due to correlated underestimates of precipitable water.
Description: Thesis (Ph. D.)--University of Hawaii at Manoa, 2002.
Mode of access: World Wide Web.
Includes bibliographical references (leaves 62-66).
Electronic reproduction.
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URI/DOI: http://hdl.handle.net/10125/3019
Other Identifiers: http://proquest.umi.com/pqdweb?index=4&did=765064511&SrchMode=1&sid=5&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1209143773&clientId=23440
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Appears in Collections:Ph.D. - Geology and Geophysics



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