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18 August 1998 GPS remote sensing precipitable water in typhoon and severe storm background
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Abstract
The principle and method of remote sensing precipitable water by Global Positioning System (GPS) are introduced. A series of tropospheric delay are obtained from the dual frequency receiver's data of global tracking stations in East Asia and precise satellite ephemeris of IGS from July 31 to August 20, 1997. During this period, typhoon and severe storm passed through the region several times. The continuous precipitable water (PW) with the interval of 30 minutes are estimated at Shanghai and Wuhan GPS sites. The results are compared with PW from conventional radiosonde during the same period, and the RMS is about 0.50 cm. They fit well in main tendency and agree with each other at most of the time, especially when severe storm affects the region. The continuous change of precipitable water reflects the weather process precisely.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jietai Mao, Chengcai Li, Jianguo Li, and Qing Xia "GPS remote sensing precipitable water in typhoon and severe storm background", Proc. SPIE 3501, Optical Remote Sensing of the Atmosphere and Clouds, (18 August 1998); https://doi.org/10.1117/12.317730
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