A Comparitive Study of Glacio-meteorological Parameters, Reflectance and Surface Energy Exchange Over Different Snow-ice Media in Dronning Maud Land in East Anatrctica.

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Brief Description (Abstract):

Two Automatic Weather Stations (AWS) were installed over continental shelf and continental ice surfaces in Dronning Maud Land in East Antarctica during XVIIth Indian Scientific Expedition to Antarctica (ISEA). High quality glacio-meteorological data were collected round the year. A simple energy balance model based on the glaciomet parameters is formulated to calculate the energy exchange over the two types of surfaces. Surface roughness and albedo values of the two types of surfaces have been accounted for in the model. Different components of energy budget are tabulated and the results are compared for the two types of surfaces during Austral summer of 1999 ? 2000. Summer and winter energy budget are also compared and discussed for the continental ice surface. The difference in the energy balance over continental shelf and continental ice is mainly caused by differences in albedo, surface roughness and short wave extinction coefficient.

Status: Completed

Purpose: Results indicate that the main difference in summer and winter energy budget over continental ice is in the net radiation and sensitive heat fluxes during the corresponding periods. As the energy balance models are sensitive to surface reflectivity variation, albedo measurements over different snow-ice media were carried out and its dependence on solar elevation angle and cloud amount/type were investigated in detail.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Cryosphere,

Place/Location(s): Maitri, Antarctic,

Project: A Comparitive Study of Glacio-meteorological Parameters,

Topic Category(s): GeoScientific Information,

Date(s): 2020-09-25 (Creation),

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

Extent:
Start Date : 1998-01-01
End Date   : 1999-12-31