Precipitation Analysis and Judgment Based on GPS Water Vapor Retrieval and GPS-IR
Abstract This paper uses GPS water vapor retrieval and GPS-interferometric reflectometry (GPS-IR) technology for precipitation analysis and judgment. First, considering that before and after precipitation occurs, and that atmospheric water vapor content, ground reflection characteristics, GPS tropospheric delay, and signal-to-noise ratio (SNR) amplitude (A) will change, we analyze the correlation between GPS-PWV/SNR-A and precipitation, and combine the two to determine precipitation. The results show that precipitation is positively correlated with GPS-PWV and negatively correlated with SNR-A. The addition of SNR-A data can improve the forecast rate and accuracy for precipitation judgment. Based on the troughs of SNR-A sequence and the peaks of GPS-PWV sequence, in this work the forecast rate of precipitation judgment is about 70%-82% and the accuracy rate of precipitation judgment is about 50%-60%.
Key words :
GPS
water vapor retrieval
signal-to-noise ratio
amplitude
precipitation
Cite this article:
WANG Xiaolei,NIU Zijin,HE Xiufeng. Precipitation Analysis and Judgment Based on GPS Water Vapor Retrieval and GPS-IR[J]. jgg, 2021, 41(9): 929-933.
WANG Xiaolei,NIU Zijin,HE Xiufeng. Precipitation Analysis and Judgment Based on GPS Water Vapor Retrieval and GPS-IR[J]. jgg, 2021, 41(9): 929-933.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2021/V41/I9/929
[1]
ONG Qi,GAO Ertao,YU Hangming,LAN Yanping. Research on the Sensitivity of Deep Slip Inversion for Earthquake Fault Slip Constrained by InSAR and GPS Geodetic Deformation Data [J]. jgg, 2022, 42(1): 59-64.
[2]
ZHANG Jian,ZHAO Bin,WANG Dongzhen,WANG Haibin,LIU Zhijun. Probing the Rheological Structure of Southern Tibet from the Postseismic Deformation of the 2015 MW 7.8 Nepal Earthquake [J]. jgg, 2021, 41(8): 827-832.
[3]
GUAN Zhongpei,GAO Ying,LI Li,ZHOU Jialing,LIU Yu,HOU Xiaoling,ZHANG Wenwen. Parameter Fusion from GPT2w Model and GNSS to Obtain Precipitable Water Vapor [J]. jgg, 2021, 41(7): 700-706.
[4]
TIAN Xiao,ZHAN Wei,ZHENG Hongyan,YIN Haiquan. Characteristics of Present-Day 3D Crustal Movement of Sichuan-Yunnan Region [J]. jgg, 2021, 41(7): 739-746.
[5]
ZHU Bingqing,WANG Jianguo,GUO Wei,ZHAO Liming,WANG Weitao. Data Fusion Analysis of Vertical Pendulum Broadband Tiltmeter and Broadband Seismometer in Tianjin [J]. jgg, 2021, 41(7): 759-764.
[6]
DING Wenxiu,LIAO Wulin,LI Yuan. Extraction of Lg-Wave from Seismic Background Noise [J]. jgg, 2021, 41(6): 650-654.
[7]
ZHAO Wenhao,LIU Genyou,WANG Shengliang,GAO Ming. GPS-L1/BDS-B1 Non-Overlapping Frequency Tight Combination Relative Positioning [J]. jgg, 2021, 41(6): 618-622.
[8]
FAN Di,LI Li,LIU Yan,WEI Ye,WEI Yun,ZHOU Jialing,LIU Yu. Research on Direct Conversion Model of GNSS Precipitable [J]. jgg, 2021, 41(6): 628-632.
[9]
WANG Wei,SHEN Yunzhong,WANG Fengwei. Analysis on the Terrestrial Water Storage Changes in the Congo River Basin from 2002 to 2020 [J]. jgg, 2021, 41(5): 466-470.
[10]
LIU Zhongguan,YUAN Linguo,CHEN Changfu,CHENG Shuai,ZHANG Di. Modeling Accuracy Analysis of Ocean Tide Load Displacement in New Zealand [J]. jgg, 2021, 41(4): 387-391.
[11]
DAI Hongbao,TANG Hongtao. Analysis of Tectonic Stress Field Characteristics of Longxian-Baoji Fault Zone Based on GPS Data [J]. jgg, 2021, 41(4): 413-418.
[12]
WANG Dongzhen, ZHAO Bin, YU Jiansheng, TAN Kai. Can Vertical Crustal Deformation Be Monitored by Campaign GPS?——Taking Chinese Mainland as Example [J]. jgg, 2021, 41(3): 290-295.
[13]
LU Tieding, XIE Jianxiong. EEMD-Multiscale Permutation Entropy Noise Reduction Method for GPS Elevation Time Series [J]. jgg, 2021, 41(2): 111-115.
[14]
PEI Yuekun,HAN Xinxin. Overview of GNSS-R Technique for Soil Moisture Detection [J]. jgg, 2021, 41(2): 140-144.
[15]
GAO Chen,CAO Jun,LIU Shufeng,MA Dong,LIU Siyu. The Current Surface Deformation Characteristics of Northern Margin Fault of Yangyuan Basin Based on GPS and SBAS-InSAR [J]. jgg, 2021, 41(12): 1288-1293.