8c5bb1cc-3ea9-4fbe-8c58-f983802e0bb3 eng utf8 dataset pointOfContact National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V 2020-12-11T00:00:00 creation ISO 19115-1 Geographic information - Metadata - Part 1: Fundamentals ISO 19115-1:2014 Orthometric Height Determination Using GPS in East Antarctica. 2020-09-11T00:00:00 creation Document digital GPS observations were made in East Antarctica during the X Indian Scientific Expedition for providing geographical controls. Heights above MSL, i.e. the geoid, is an essential parameter in geographical coordinates for mapping and other Survey application. The Global Positioning System (GPS) provides three dimensional coordinates?latitude, longitude and height?with reference to the World Geodetic System 84 (WGS 84) ellipsoid. This describes a method by which the heights above the Instantaneous Mean Sea Level (IMSL) can be obtained in an inaccessible area where classical techniques for determination of MSL cannot be adopted. The main drawback in this method is that sufficient observation over a long period and from more sites have to be collected. Global Positioning System (GPS) is an all weather positioning system, which can provide the relative positions of points that are separated by tens of kilometres. Additionally, the GPS system can provide the required level of precision in position with one to two hours observation, without requiring the intervisibilities of stations. The relative positions are obtained with reference to a geocentric reference system. The difference of heights between the two ends of a baseline gives us the height of the Antenna positions located on the control points. completed principalInvestigator National Centre for Polar and Ocean Research (NCPOR) 8322525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Dr. V P Srivastava 20.0 140.0 -90.0 30.0 1990-01-01 1991-12-31 Earth Science-Land Surface Theme Maitri Antarctic Place Orthometric Height Determination Using GPS in East Antarctica Project eng TableDigital unknown unknown unknown distributor National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF2106574656&userType=user&freeTextValue=Orthometric+Height+Determination+Using+GPS+in+East+Antarctica.