Thermal structure, sedimentology, and hydro-geochemsitry of lake priyadarshini, schirmacher oasis, Antractica.
Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all¶meter=MF-508084368&userType=user&freeTextValue=Thermal+structure%2C+sedimentology%2C+and+hydro-geochemsitry+of+lake+priyadarshini%2C+schirmacher+oasis%2C+Antractica.
Brief Description (Abstract):
Analysis of thermal structure and estimation of heat budget for lake Priyadarshini, eastern Schimacher oasis during sixteenth Indian Scientific Antarctica Expedition (December' 96-March'97) reveal that weak thermal stratification prevailed in the lake for the major part of the period of observation during mid summer. However, the lake becomes unstratified as the winter period approaches. The heating cycle of the lake is a function of climate and morphometry of the lake itself. Detailed study of mineralogical and geochemical aspects of lake sediment cores have been carried out to elucidate the depositional processes and post-depositional changes within the total lake system, including its catchment. The in-situ parameters of lake water, concentration of some major ions and trace metals have also been analyzed in the present study to understand the hydrogeochemistry of the lake.
Status: Completed
Purpose: The Schirmacher Oasis of Antarctica is a group of low-lying hills of 50- 200m height and is interspersed with a number of freshwater glacial lakes. The available information indicate that the size of these lakes ranges form a few hectares to a few km2 and the maximum depth of water in them ranges from a few meters to about 150m. Depending upon their topographic setting, they occur as inland lakes, ice margins lakes or epishelf lakes. Lake Priyadarshini, with the total water spread area or 0.75 sq. km., is one of the largest lake in the region and is closest to the Indian Station, Maitri. This lake, located at about 255 meters away from Maitri, is the lifeline of the Indian expedition as it completely caters to the water supply to the station. The lake has been described as a proglacial lake (Priddle and Heywood, 1980, inVerlencar et. al. 1996), formed at the edge of the ice cap during the deglaciation phase.
Presentation Format: Documentdigital
Distribution Format: unknown
Distribution Format Version: unknown
Supplemental Information:
TableDigital
Keyword(s):
Earth Science-Paleoclimate,
Place/Location(s):
Antarctic,
Schirmacher Oasis,
Project:
Thermal structure,
Topic Category(s): ClimatologyMeteorologyAtmosphere,
Date(s): 2020-09-18 (Creation),
Resource Contact(s):
1. Name : Dr. R Sinha
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 : 1996-01-01
End Date : 1997-12-31