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Title: 地基GPS技术遥感香港地区大气水汽含量
Other Title: Monitoring the water vapor content in the atmosphere in Hong Kong through ground based GPS technique
Authors: Liu, Y
Iz, HB 
Chen, YQ 
Issue Date: 1999
Source: 武漢測繪科技大學學報 (Journal of Wuhan Technical University of Surveying and Mapping), Sept. 1999, v. 24, no. 3, p. 245-248
Abstract: 提出了分段多项式方法计算大气水汽含量,并结合无线电高空气象探测资料,分析并评估了地基GPS遥感技术的精度。香港地区的可降水份计算结果表明,地基GPS遥感技术的精度为1 m m ~2 m m
Ground based GPS technique is rapidly growing in remote sensing water vapor content in the atmosphere. In this paper, the problem of extracting water vapor content information from GPS data is examined. A new approach, namely as piecewise linear method has been proposed in the estimation of precipitable water vapor through Hong Kong DGPS station observations. Considering no meteorological measurements, a simple interpolated method weighted by distance is developed to perform the interpolation using the meteorological observations around Hong Kong DGPS station. To evaluate the attainable accuracy of water vapor content sensed by GPS, radiosonde data, which are collected locally by Hong Kong Observatory, are used to calculate the precipitable water vapor. One month results of precipitable water vapor from both ground based GPS technique and radiosonde method exhibit very good agreement within 1 mm~2 mm.
Keywords: GPS
Water vapor content
Precipitable water vapor
Publisher: 武漢測繪科技大學
Journal: 武漢測繪科技大學學報 (Journal of Wuhan Technical University of Surveying and Mapping) 
ISSN: 1000-050X
Rights: © 1999 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 1999 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research use.
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