Estimation and Evaluation of Ice Surface Velocity of Lambert Drainage of East Antarctica by Using Multi-Source Remote Sensing Datasets

Abstract:

Ice surface velocity is one of the essential parameters for evaluating the mass balance and numerical simulation. In this paper, the research is mainly focused on the estimation of the ice surface velocity by combining the differential interferometry method and the multiaperture interferometry method. The twodimensional ice surface velocity of Lambert Drainage was estimated by employing the proposed method. A comparison between the estimated ice surface velocity and those obtained by using the offset tracking method and historical products was performed to analyze the dynamic characters. The results show that the proposed method is superior to the offset tracking method, and the glaciers in Lambert drainage is stable during the past 20 years.

Key words:ice flow velocity;differential interferometric synthetic aperture radar;multiple aperture interferometry; Lambert Glaciers; accuracy evaluation