Glacier movement is closely related to changes in climatic, hydrological, and geological factors.
Detecting glacier surface flow velocity with conventional ground surveys is challenging.
Remote sensing techniques, especially synthetic aperture radar (SAR), provide regular observations covering larger-scale glacier regions.
This paper illustrated the technique extracting glacier surface flow velocity in the West Kunlun Mountains using modified offset-tracking techniques based on ALOS/PALSAR images.
The offset detection applied cross correlation in the Fourier domain and global offset elimination of thin plate smooth splines.