An introduction of mountain-based GPS radio occultation experiments in China

Details An introduction of mountain-based GPS radio occultation experiments in China An introduction of mountain-based GPS radio occultation experiments in China

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008adspr..42.1723h&link_type=abstract

Advances in Space Research, Volume 42, Issue 10, p. 1723-1729.

Computer Science

Scientific paper

The mountain-based GPS radio occultation is a novel approach to lower atmospheric profiling. The experiments of the mountain-based GPS radio occultation were conducted on the top of Mt. Yaogu (29.38°N, 113.68°E, ˜1240 m) on December 17, 2003, and on the top of Mt. Jiugong (29.39°N, 114.65°E, ˜1550 m) on July 24, 2004. Based on these observation data, the scientific data processing software has been developed and is used to retrieve successfully the atmospheric refractivity profiles. The validation experiment was performed on the top of Mt. Wuling (40.60°N, 117.48°E, ˜2118 m) during August 1 29, 2005. Collocated automatic weather station and the radiosondes nearby were operated simultaneously for the comparison campaign. Results show that the radio occultation technique obtained about 40 profiles every day with the receiver antenna pointing to the south. Comparisons show that the refractivity measured by occultation agree well with those by the radiosondes, but not well with those by the automatic weather station due to their much different geographic locations of measurements. Results of these experiments suggest that the mountain-based GPS radio occultation is an economic reliable novel technique monitoring temporal and spatial variations of local lower atmospheric environments.

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