041a70c5-090e-4366-b060-b5653880d380 English UTF-8 Dataset Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Point of contact 2020-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Ice Thickness and Subglacial Topography Studies by Ground Penetrating Radar During the XX Indian Antarctic Expedition. 2020-09-30 Creation Document digital Ground Penetrating Radar (GPR) has proved to be a versatile tool for mapping of glacial ice thickness and related studies over the years. During the XX Indian Antarctic Expedition pulse EKKO IV GPR operating at center frequency of 12.5 MHz was used to measure the ice thickness of polar ice sheet to the south of Schirmarcher Oasis, Queen Maund Land in Eastern Antarctica. The GPR profiling of 8.3 km was carried out between Vetehiea and Tallaksenvardan nunataks. The general bedrock topography is gently undulating, 1520 m wide depression in the bed rock is marked by a sudden break in slope at 4700 m and 6220 m due south of Vetehiea, where the thickness of ice is more than 440 m, indicating a deep graben structure in the bed rock. The major objectives of this study was to map the subglacial topography beneath the polar ice, and decipher the tectonic setup of the region, which could prove useful in selection of a suitable location for ice core drilling. Results of GPR survey conducted to estimate the shelf thickness and snow depth over the sunken Daskshin Gangotri station established in 1983 are also discussed. Completed Dr. J T Gergan National Centre for Polar and Ocean Research (NCPOR) 8322525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Principal investigator Earth Science-Solid Earth Theme Schirmacher Oasis Antarctic Place Ice Thickness and Subglacial Topography Studies by Ground Penetrating Radar During the XX Indian Antarctic Expedition Project English 20.0 140.0 -90.0 30.0 2000-01-01 2001-12-31 TableDigital unknown unknown Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Distributor http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-353493190&userType=user&freeTextValue=Geographical+Control+in+East+Antarctica.