A Three-dimensional Water Vapor Tomography Algorithm Based on the Water Vapor Density Scale Factor

doi:10.11947/j.AGCS.2015.20150205

Abstract

Abstract: A water vapor tomography algorithm is proposed based on the water vapor density scale factor, which improves the utilization of observation. Real GPS and meteorological data from CORS network in Hong Kong were utilized to validate the proposed approach and analyze the influence under different weather conditions. Tomographic results of the proposed approach were compared with radiosonde data from 45004 station. The statistical result shows that the utilization of observation of the proposed approach is larger than that of traditional method, and the RMS, water vapor profile and error distribution are better than the traditional methods. In addition, the influence of tomographic result under the weather of precipitation is more severe than that of no precipitation weather.

Key words: water vapor density, tomography, radiosonde

CLC Number:

P228

YAO Yibin, ZHAO Qingzhi, HE Yadong, LI Zufeng. A Three-dimensional Water Vapor Tomography Algorithm Based on the Water Vapor Density Scale Factor[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(3): 260-266.

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