Ground Penetrating Radar Survey for Detection of Shelf Ice Depth and Its Spatial Variation in Central Dronning Maud Land, East Antarctica.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF1068226375&userType=user&freeTextValue=Ground+Penetrating+Radar+Survey+for+Detection+of+Shelf+Ice+Depth+and+Its+Spatial+Variation+in+Central+Dronning+Maud+Land%2C+East+Antarctica.

Brief Description (Abstract):

Ice shelves are a permanent feature of Antarctica; these not only bind but also shape the continental ice sheet. However, shelf ice is fluctuating in nature, due to direct contact with the sea. Changes in the extent of shelf ice with varying climatic conditions can be interpreted using various remote sensing satellites; but these satellites do not yet have the capability to retrieve depth information. Radio-echo sounding provides an efficient tool to measure ice depth.

Status: Completed

Purpose: The survey results show that the shelf ice thickness varies between 20 and 60 m. 3-D map of the surveyed area was prepared using the latitude and longitude information from the GPS and the depth information from the GPR. After combining various GPR profiles, it is observed that the shelf ice thickness decreases while moving towards the sea in the north direction and it increases away from the sea edge towards the south. Sharp reflections of radio waves from two different levels (depth) were observed at few locations in radargram, although these reflections are from very limited area but their interpretation is a further area of research.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Cryosphere,

Place/Location(s): Antarctic, Maitri,

Project: Ground Penetrating Radar Survey for Detection of Shelf Ice Depth and Its Spatial Variation in Central Dronning Maud Land,

Topic Category(s): GeoScientific Information,

Date(s): 2020-10-12 (Creation),

Resource Contact(s):
1. Name : Dr. K K Singh
    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 : 2007-01-01
End Date   : 2008-12-31