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Article: Accuracy and variability of GPS tropospheric delay measurements of Water Vapor in the Western Mediterranean
- Article from:
- Journal of Applied Meteorology
- Article date:
- November 1, 2003
- Author:
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Copyright informationCopyright American Meteorological Society Nov 2003. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
As a preliminary step for assessing the impact of global positioning system (GPS) refractive delay data in numerical weather prediction (NWP) models, the GPS zenith tropospheric delays (ZTDs) are analyzed from 51 permanent GPS sites in the western Mediterranean. The objectives are
to estimate the error statistics necessary for future assimilation of GPS ZTD data in numerical models and to investigate the variability of the data in this area. The time series, which were derived continuously from November 1998 to June 2001, are compared with independent equivalent values derived from radiosonde profiles and the High-Resolution Limited-Area Model (HIRLAM) NWP model. Based on over two ...
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