ESTIMATION of SHIE GLACIER SURFACE MOVEMENT USING OFFSET TRACKING TECHNIQUE with COSMO-SKYMED IMAGES

dc.contributor.author Wang,Q en
dc.contributor.author Zhou,W en
dc.contributor.author Fan,J en
dc.contributor.author Yuan,W en
dc.contributor.author Li,H en
dc.contributor.author Joaquim João Sousa en
dc.contributor.author Guo,Z en
dc.date.accessioned 2018-01-23T17:07:47Z
dc.date.available 2018-01-23T17:07:47Z
dc.date.issued 2017 en
dc.description.abstract Movement is one of the most important characteristics of glaciers which can cause serious natural disasters. For this reason, monitoring this massive blocks is a crucial task. Synthetic Aperture Radar (SAR) can operate all day in any weather conditions and the images acquired by SAR contain intensity and phase information, which are irreplaceable advantages in monitoring the surface movement of glaciers. Moreover, a variety of techniques like DInSAR and offset tracking, based on the information of SAR images, could be applied to measure the movement. Sangwang lake, a glacial lake in the Himalayas, has great potentially danger of outburst. Shie glacier is situated at the upstream of the Sangwang lake. Hence, it is significant to monitor Shie glacier surface movement to assess the risk of outburst. In this paper, 6 high resolution COSMO-SkyMed images spanning from August to December, 2016 are applied with offset tracking technique to estimate the surface movement of Shie glacier. The maximum velocity of Shie glacier surface movement is 51 cm/d, which was observed at the end of glacier tongue, and the velocity is correlated with the change of elevation. Moreover, the glacier surface movement in summer is faster than in winter and the velocity decreases as the local temperature decreases. Based on the above conclusions, the glacier may break off at the end of tongue in the near future. The movement results extracted in this paper also illustrate the advantages of high resolution SAR images in monitoring the surface movement of small glaciers. © Authors 2017. en
dc.identifier.uri http://repositorio.inesctec.pt/handle/123456789/7324
dc.identifier.uri http://dx.doi.org/10.5194/isprs-annals-iv-2-w4-493-2017 en
dc.language eng en
dc.relation 6354 en
dc.rights info:eu-repo/semantics/openAccess en
dc.title ESTIMATION of SHIE GLACIER SURFACE MOVEMENT USING OFFSET TRACKING TECHNIQUE with COSMO-SKYMED IMAGES en
dc.type conferenceObject en
dc.type Publication en
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