Derivation of glacier velocity from SAR data with feature tracking

Lei Huang; Zhen Li

doi:10.1117/12.873220

3 November 2010 Derivation of glacier velocity from SAR data with feature tracking

Lei Huang, Zhen Li

Proceedings Volume 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications; 78410P (2010) https://doi.org/10.1117/12.873220
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China

Abstract

Mountain glaciers are especially sensitive to climate variations. Monitoring temperate glacier activity has become more and more necessary for economical and security reasons and as an indicator of the local effects of global climate. Glacier flow velocity plays an important role in climate monitoring and casualty forecasting, however, available velocity data is hitherto not abundant. The most studied variable in ice dynamics in the literature is ice velocity. From remotely sensed images, mainly two types of methods have been used for the estimation of glacier flow velocities: feature tracking and differential interferometric synthetic aperture radar (DInSAR). In this paper velocities of the Keqikaer glacier are acquired from ALOS (Advanced Land Observing Satellite) SAR data with feature tracking. The results show that different window size in correlation calculation of feature tracking leads to different flow field. We developed a new method to determine the best window size, and the method is testified by using SAR data.

Citation Download Citation

Lei Huang and Zhen Li "Derivation of glacier velocity from SAR data with feature tracking", Proc. SPIE 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications, 78410P (3 November 2010); https://doi.org/10.1117/12.873220

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available