Singh, KK and Negi, HS and Ganju, A and Kulkarni, AV and Kumar, A and Mishra, VD and Kumar, S (2013) Crevasses detection in Himalayan glaciers using ground-penetrating radar. In: Current Science, 105 (9). pp. 1288-1295.
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Abstract
Identification and mapping of crevasses in glaciated regions is important for safe movement. However, the remote and rugged glacial terrain in the Himalaya poses greater challenges for field data collection. In the present study crevasse signatures were collected from Siachen and Samudra Tapu glaciers in the Indian Himalaya using ground-penetrating radar (GPR). The surveys were conducted using the antennas of 250 MHz frequency in ground mode and 350 MHz in airborne mode. The identified signatures of open and hidden crevasses in GPR profiles collected in ground mode were validated by ground truthing. The crevasse zones and buried boulder areas in a glacier were identified using a combination of airborne GPR profiles and SAR data, and the same have been validated with the high-resolution optical satellite imagery (Cartosat-1) and Survey of India mapsheet. Using multi-sensor data, a crevasse map for Samudra Tapu glacier was prepared. The present methodology can also be used for mapping the crevasse zones in other glaciers in the Himalaya.
| Item Type: | Journal Article |
|---|---|
| Publication: | Current Science |
| Publisher: | Indian Academy of Sciences |
| Additional Information: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Crevasses Detection; Glaciers; Ground-Penetrating Radar |
| Department/Centre: | Division of Mechanical Sciences > Divecha Centre for Climate Change |
| Date Deposited: | 26 Dec 2013 05:00 |
| Last Modified: | 26 Dec 2013 05:00 |
| URI: | http://eprints.iisc.ac.in/id/eprint/48065 |
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