Orthometric Height Determination Using GPS in East Antarctica.

Access URI: 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.

Brief Description (Abstract):

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.

Status: Completed

Purpose: 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.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Land Surface,

Place/Location(s): Maitri, Antarctic,

Project: Orthometric Height Determination Using GPS in East Antarctica,

Topic Category(s): GeoScientific Information,

Date(s): 2020-09-11 (Creation),

Resource Contact(s):
1. Name : Dr. V P Srivastava
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 1990-01-01
End Date   : 1991-12-31