대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)
- 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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- Pages.414-417
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- 2008
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- 1226-9743(pISSN)
MOTION OF GLACIERS, SEA ICE, AND ICE SHELVES IN CANISTEO PENINSULA, WEST ANTARCTICA OBSERVED BY 4-PASS DIFFERENTIAL INTERFEROMETRIC SAR TECHNIQUE
- Han, Hyang-Sun (Department of Geophysics, Kangwon National University) ;
- Lee, Hoon-Yol (Department of Geophysics, Kangwon National University)
- 발행 : 2008.10.29
초록
We have extracted a surface deformation map of a part of Canisteo Peninsula on Amundsen Sea in West Antarctica by applying 4-pass DInSAR technique to two ERS-1/2 tandem pairs obtained on October 21-22, 1995 (diff-pair) and March 9-10, 1996 (topo-pair), and analyzed changes of glaciers, sea ice, ice shelves, and their kinematic interactions. We observed fast motion of glaciers pushing the adjoining sea ice. Some interferometric phases indicate the up-rise of sea ice of which type is thought to be land-fast ice to exert repulsive force against the pushing glacier. There were other glaciers and sea ice that moved to the same direction, suggesting that the sea ice in these regions was land-fast ice weakly harnessed to sea bottom or pack ice not harnessed at all. Several small circular fringes in ice shelves suggested that islands or seamounts on the bottom of ice shelves deterred the movement of ice shelves, resulting in the rise of ice surface.