Title
Mapping Complete Three-Dimensional Ice Velocities By Integrating Multi-Baseline And Multi-Aperture Insar Measurements: A Case Study Of The Grove Mountains Area, East Antarctic
Abstract
The Antarctic is one of the most sensitive areas to climate change, and ice velocity is a fundamental parameter for quantitatively assessing the glacier mass balance. Interferometric synthetic aperture radar (InSAR), a powerful tool for monitoring surface deformation with the advantages of having high precision and wide coverage, has been widely used in determining ice velocity in the Antarctic. However, the mapping of complete three-dimensional (3D) ice velocities is greatly limited by the imaging geometries and digital elevation model (DEM)-induced errors. In this study, we propose the integration of multibaseline and multiaperture InSAR measurements from the ENVISAT ASAR datasets to derive complete 3D ice velocities in the Grove Mountains area of the Antarctic. The results show that the estimated complete 3D ice velocities are in good agreement with MEaSUREs and GPS observations. Compared with the conventional 2D and quasi-3D ice velocities, the complete 3D ice velocities can effectively eliminate the effects of DEM errors and elevation changes and are also capable of retrieving the thickness change of the ice, which provides important information on the origin of mass transition.
Year
DOI
Venue
2021
10.3390/rs13040643
REMOTE SENSING
Keywords
DocType
Volume
3D, ice velocity, InSAR, MAI, Antarctic, ice thickness
Journal
13
Issue
Citations 
PageRank 
4
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Wanji Zheng121.37
Jun Hu201.69
Ji-Hong Liu302.70
Qian Sun400.34
Z.W. Li54913.91
ZHU Jian-jun67829.76
Lixin Wu79435.60