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|Table of Contents|

区域大气可降水量变化的地基GPS探测研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年01期
Page:
168-172
Column:
研究简报
publishdate:
2013-01-15

Article Info:/Info

Title:
Detection of PWV change in winter by ground-based GPS
Author(s):
WANG Liang ZHENG Jiazhu WEI Haohan
College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
Keywords:
ground-based GPS precipitable water vapor(PWV) cut-off angle mapping functions
Classification number :
P228.4
DOI:
10.3969/j.issn.1000-2006.2013.01.031
Document Code:
A
Abstract:
The detection of atmospheric precipitable water vapor by ground-based GPS has become a powerful supplementation for routine atmosphere sounding system.This paper used observation datas based on Nanjing local GPS network to analyze the effects of precipitable water vapor monitoring by GPS under different satellite ephemeris, different numbers of IGS,different cut-off angles and different mapping functions.The results showed that by using the rapid ephemeris, three IGS, under 10° cut-off angle, and with calculating PWV, Vienna Mapping Function(VMF1)were the optimal solution strategies. Finally,according to this strategy,it analyzed and explained a wrong snowfall forecast in Nanjing in 2009,further proved that by using regional GPS network to monitor atmospheric precipitation, we could study the change of regional atmospheric precipitable water vapor and improve the accuracy of small scale weather forecast.

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Last Update: 2013-01-15