SPATIO-TEMPORAL MONITORING OF PERMAFROST REGION USING SAR REMOTE SENSING

Due to the high temporal sampling rate of ASAR Global Monitoring (GM) mode, it has a high application potential for analyzing freeze/thaw process in permafrost area. The aim of the study is to develop a robust and rigorous method for monitoring seasonal freeze/thaw cycles beyond the threshold approa...

Full description

Bibliographic Details
Main Authors: Sang-eun Park A, Yoshio Yamaguchi A, Gulab Singh A, Annett Bartsch B
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Asar
permafrost
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.221.8087
http://www.isprs.org/proceedings/XXXVIII/part8/pdf/NTS14_20100608022300.pdf
Description
Summary:Due to the high temporal sampling rate of ASAR Global Monitoring (GM) mode, it has a high application potential for analyzing freeze/thaw process in permafrost area. The aim of the study is to develop a robust and rigorous method for monitoring seasonal freeze/thaw cycles beyond the threshold approach. In order to use ASAR GM time series for analyzing freeze/thaw states, a least square fitting of piecewise step function is introduced. The thawing date can be determined by minimizing the sum of squared residuals between measured backscattering time series and a pre-defined step function. An experiment result for Siberian permafrost area illustrates that it can be a promising approach in monitoring permafrost ecosystems. 1.

Similar Items