DInSAR ATMOSPHERIC DELAY CORRECTION BASED ON MODIS AND GPS
Yang Chengsheng; Zhang Qin; Zhao Chaoying; Zhu Wu; Wang Ya’nan ;and Wang Hongyu
Institute of Geological Engineering and Surveying, Chang’an University, Xi’an 710054
Abstract The radar signal propagation delay caused by the spatiotamporal change of atmospheric water vapor contents changing is one of the major error sources for interferometry SAR (InSAR). By using GPS observation data of seven terms from July 2006 to July 2009, and the corresponding MODIS data in Xi’an,the MODIS water vapor correction model is studied, and an experiment of DInSAR atmospheric delay correction in Xi’an area is carried out. Compared with GPS observations, the results show that MODIS data can be used to correct atmospheric delay in DInSAR results when the atmosphere state change slowly, though the accuracy improvement is not very obvious.
Key words :
MODIS
GPS
DInSAR
atmospheric delay
water vapor inversion
Received: 01 January 1900
Corresponding Authors:
Yang Chengsheng
Cite this article:
Yang Chengsheng,Zhang Qin,Zhao Chaoying et al. DInSAR ATMOSPHERIC DELAY CORRECTION BASED ON MODIS AND GPS[J]. , 2010, 30(第3期): 127-131.
Yang Chengsheng,Zhang Qin,Zhao Chaoying et al. DInSAR ATMOSPHERIC DELAY CORRECTION BASED ON MODIS AND GPS[J]. jgg, 2010, 30(第3期): 127-131.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I第3期/127
[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]
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.
[3]
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.
[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]
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.
[6]
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.
[7]
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.
[8]
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.
[9]
LU Tieding, XIE Jianxiong. EEMD-Multiscale Permutation Entropy Noise Reduction Method for GPS Elevation Time Series [J]. jgg, 2021, 41(2): 111-115.
[10]
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.
[11]
LIU Jie,XU Keke,FANG Jian,ZHANG Weimin,DU Zongliang. Analysis of Crustal Deformation in the Southern Margin of the Qinghai-Tibet Plateau Based on Modern Geodetic Techniques [J]. jgg, 2021, 41(11): 1183-1188.
[12]
MA Xiangtai,ZHONG Shiming,ZHANG Jie,HU Fushuai. Accuracy Analysis of Doppler Velocimetry and Kinematic PPP Velocity Determination with BDS/GPS [J]. jgg, 2021, 41(1): 34-38.
[13]
. [J]. jgg, 2020, 40(S1): 19-28.
[14]
. [J]. jgg, 2020, 40(S1): 29-32.
[15]
MA Yu,ZHU Fuying. Research on Co-Seismic Ionospheric Disturbance due to the Nepal MW 7.8 Earthquake Based on GPS TEC [J]. jgg, 2020, 40(9): 957-961.