ARTICLES

Construction and Application about the Monitoring System of Water Vapor Derived from Ground-based GPS in Chengdu

Expand
  • 1. School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China;
    2. College of Atmospheric Sciences, Chengdu University of Information Technology and the Key Laboratory of Plateau Atmosphere & Environment of Sichuan Province, Chengdu 610225, China

Received date: 2010-09-28

  Revised date: 2011-02-28

  Online published: 2011-04-25

Abstract

Water vapor plays a very important role in weather and climate changes. Though water vapor is very little in the atmosphere, but its change, in the atmosphere, is very obvious. Water vapor is also an important kind of greenhouse gas in the atmosphere whose spatial distribution is extremely uneven and time variation is very fast. It is not only the main driving force of weather and climate changes, but also an important formation and evolution reason for disastrous weather, especially medium or small scale disastrous weather. In satellite geodesy, GPS positioning accuracy was primarily affected by water vapor. Therefore, people learn from the elimination of noise in the measurement process, gradually to develop out of a new discipline—GPS meteorology (GPS/MET). Along with the development of GPS meteorology, people start to utilize ground-based GPS technology in order to effectively compensate for the defects of traditional detection technologies spatially and temporally and obtain water vapor information with high-precision, high-capacity and high space-time resolution ratio through ground-based GPS water vapor monitoring network. How to measure water vapor content in the atmosphere, to monitor the distribution of water vapor and its trends, which have an important practical significance to meteorological department, especially in monitoring and forecasting disastrous weather on a medium or small scale. The main content of this paper is to launch the development of ground-based GPS water vapor monitoring system; the purpose is to make this system fill in the blank of the application of GPS inversion water vapor technology in Sichuan and even the southwest areas of China, and also enhance the capacities of meteorological department on forecasting and monitoring of medium or small scale disastrous weather, as well as promote the work of many related meteorological operations.

Cite this article

WANG Hao, LI Guoping . Construction and Application about the Monitoring System of Water Vapor Derived from Ground-based GPS in Chengdu[J]. Journal of Geo-information Science, 2011 , 13(2) : 213 -218 . DOI: 10.3724/SP.J.1047.2011.00213

References

[1] 李国平. 地基GPS遥感大气可降水量及其在气象中的应用研究 . 西南交通大学, 2007.

[2] 宋淑丽,朱文耀,丁金才,等. 上海GPS 综合应用网对可降水汽量的实时监测及其改进数值预报初始场的试验[J]. 地球物理学报, 2007,47(4): 631-638.

[3] 陈敏,范水勇,仲跻芹,等. 全球定位系统的可降水量资料在北京地区快速更新循环系统中的同化试验[J]. 气象学报, 2010, 68(4): 450-463.

[4] Saastamoinen J. Atmospheric Correction for the Troposphere and Stratosphere in Radio Ranging of Satellites[J]. The Use of Artificial Satellites for Geodesy Monographs, 1972, 15:247-251.

[5] Elegred G, Davis J L, Herring T A, ShapiroⅡ. Geodesy by Radio Interferometry: Water Vapor Radiometry for Estimation of the Wet Delay[J]. Geophys. Rev., 1990, 96: 6541-6555.

[6] Davis J L, Herring T A, Shaprio I I, et al. Geodesy by Radio Inter-ferometry: Effects of Atmospheric Modeling Errors on Estimates of Baseline Length[J]. Radio Sci., 1985, 20:1593 - 1607.

[7] Bevis M, Businger S, Chiswell S, et al. GPS Meteorology: Mapping Zenith Wet Delays onto Precipitable Water[J]. Journal of Applied Meteorology, 1994, 33: 379-386.

[8] Boudouris G. On the Index of Refraction of Air, the Absorption and Dispersion of Centimeter Waves in Gases[J]. J. Res. Matl. Bur. Stand., 1963, 67:631-684.

[9] 郭洁, 李国平,黄丁发. 基于40年探空资料的川渝地区对流层加权平均温度及其局地建模[J]. 武汉大学学报(信息科学版), 2008, 33(增刊): 43-46.

[10] 丁金才. GPS气象学及其应用[M], 北京: 气象出版社, 2009.

[11] 郭洁, 李国平. 川渝地区大气可降水量的气候特征以及与地面水汽量的关系[J].自然资源学报,2009,24(2):344-350.

[12] 王小亚, 朱文耀, 严豪健, 等. 地面GPS探测大气可降水量的初步结果[J]. 大气科学, 1999, 23(5): 605-612.

[13] 党亚民, 王权, 冯金涛. 利用GPS资料反演大气水汽含量的研究[J]. 测绘科技动态, 1999 (3): 2-5.

[14] 李成才, 毛节泰. GPS地基遥感大气水汽总量分析[J]. 应用气象学报, 1998, 9(4): 470-477.

[15] 葛茂荣, 刘经南. PC-GAMIT软件及其应用[J]. 测绘通报, 1997(2): 21-23.

[16] 李国平, 黄丁发. GPS气象学研究及应用的进展与前景[J]. 气象科学, 2005, 25(6): 651-661.

[17] 李国平, 陈娇娜, 黄丁发, 等. 地基GPS水汽实时监测系统及其气象业务应用[J],武汉大学学报(信息科学版), 2009, 34(11): 1328-1331.

[18] 何平, 徐宝祥, 周秀骥,等.地基GPS反演大气水汽总量的初步实验[J]. 应用气象学报. 2002,13(2): 179-183.
Outlines

/