Energy budget model based on albedo and glacio-meteorological parameters of diffrent snow-ice media in Antarctica through ground based observations, 1997-98.

Access URI: http://data.ncaor.gov.in/newhtml

Brief Description (Abstract):

Measurements of the dependence of albedo in different snow and ice media on solar elevation angle, cloud cover, liquid water content, grain size etc. can be interpreted in terms of single scattering and multiple scattering radiative transfer theory. Detailed albedo measurements were carried out during summer and winter period in different snow and ice media in 1997-98 at different chosen sites in Antarctica. Average albedo values were found to be high in snow medium (max. 99%) moderate in shelf ice (max.90%) and very low values (max.58%) in the continental ice medium. The albedo was found to be a function of cloud amount, increasing with the amount and thickness. In white-out conditions during blizzards high albedo (Av. 83%) was found as compared to clear sky day (Av.76%) and after blizzard (Av. 78%). It showed dependency on the type of snow also. New snowfall over old snow displayed higher values (90%) than older snow (70%) and decreases with the age of snow.

Status: Completed

Purpose: The interaction of electromagnetic radiation with a natural snow cover is of considerable practical interest and scientific importance. The remote sensing community requires an improved understanding of the optical properties of snow in order to correctly interpret the imagery of snow covered regions and to distinguish between snow pack and cloud covers. Radiant energy transfer is important in the thermodynamics and metamorphosis of the snow pack and is therefore of interest to those who study the mechanical and hydrological properties of the snowpack. Therefore, the establishment of relationships between the optical properties of snow and frequently measured snowpack quantities, such as liquid erties of snow and frequently measured snowpack quantities, such as liquid water content, density, surface temperature etc. would be of considerable utility.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Cryosphere,

Place/Location(s): Maitri, Antarctic,

Project: Energy budget model based on albedo and glacio-meteorological parameters of diffrent snow-ice media in Antarctica through ground based observations,

Topic Category(s): GeoScientific Information,

Date(s): 2020-09-18 (Creation),

Resource Contact(s):
1. Name : Dr. V D Mishra
    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 : 1996-01-01
End Date   : 1997-12-31