Related Experiment Video
Updated: Jul 9, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
Evaluation of InSAR Tropospheric Delay Correction Methods in the Plateau Monsoon Climate Region Considering
Qihang Yang1, Xiaoqing Zuo1, Shipeng Guo1
1School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China.
Abstract:
The tropospheric delay caused by the temporal and spatial variation of meteorological parameters is the main error source in interferometric synthetic aperture radar (InSAR) applications for geodesy. To minimize the impact of tropospheric delay errors, it is necessary to select the appropriate tropospheric delay correction method for different regions. In this study, the interferogram results of the InSAR, corrected for tropospheric delay using the Linear, Generic Atmospheric Correction Online Service for InSAR (GACOS) and ERA-5 atmospheric reanalysis dataset (ERA5) methods, are presented for the study area of the junction of the Hengduan Mountains and the Yunnan-Kweichow Plateau, which is significantly influenced by the plateau monsoon climate. Four representative regions, Eryuan, Binchuan, Dali, and Yangbi, are selected for the study and analysis. The phase standard deviation (STD), phase-height correlation, and global navigation satellite system (GNSS) data were used to evaluate the effect of tropospheric delay correction by integrating topographic, seasonal, and meteorological factors. The results show that all three methods can attenuate the tropospheric delay, but the correction effect varies with spatial and temporal characteristics.
More Related Videos
10:28Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
Published on: June 13, 2020
07:14Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
Published on: May 1, 2018
Related Concept Videos
Distance Corrections
Errors in Global Positioning System
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
Types of Global Positioning System Surveys
Methods of Obtaining Topography
Global Climate Change