Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-8, 525-529, 2014
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-8/525/2014/
doi:10.5194/isprsarchives-XL-8-525-2014
© Author(s) 2014. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
28 Nov 2014
Ice calving and deformation from Antarctic Ice margins using RISAT-1 circular polarization SAR data
P. Jayaprasad, D. R. Rajak, R. K. Singh, S. R. Oza, R. Sharma, and R. Kumar Space Applications Centre (ISRO), Ahmedabad 380015, India
Keywords: SAR, Ice Calving, change detection, RISAT-1, ISEA Abstract. In the present study, quantification of spatial and temporal changes has been carried out between Indian Antarctic Research station Bharati and Amery ice shelf by monitoring the ice margins using RISAT-1 Synthetic Aperture Radar (SAR) data. Spatio-temporal change detection was carried out by comparing the feature's geographic locations from geometrically rectified SAR data from RISAT-1 (Dec. 2013), Radarsat-2 (Feb. 2013), and Antarctic Mapping Mission products of Radarsat-1 (1997 & 2000). We report large scale disintegrations at two prominent glacier tongues namely Polar Record Glacier (PRG) and Polar Times Glacier(PTG). The results are verified against in-situ ground observations made during Summer period of 33rd ISEA (Dec. 2013–Feb. 2014) and MODIS images from NSIDC archive. Polar Record Glacier Tongue (PRGT) was drastically deformed by 135.8 km2 and Polar Times Glacier Tongue (PTGT) was partly calved by ~195.6 km2 and moved away by ~23 km especially between February and December 2013.
Conference paper (PDF, 924 KB)


Citation: Jayaprasad, P., Rajak, D. R., Singh, R. K., Oza, S. R., Sharma, R., and Kumar, R.: Ice calving and deformation from Antarctic Ice margins using RISAT-1 circular polarization SAR data, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-8, 525-529, doi:10.5194/isprsarchives-XL-8-525-2014, 2014.

BibTeX EndNote Reference Manager XML