Salinity impact on water flow and lake ice in Lake Vostok, Antarctica

Details Salinity impact on water flow and lake ice in Lake Vostok, Antarctica Salinity impact on water flow and lake ice in Lake Vostok, Antarctica

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30noce8m&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 14, pp. OCE 8-1, CiteID 1767, DOI 10.1029/2003GL017380

Mathematics

Logic

12

Hydrology: Water/Energy Interactions, Hydrology: Snow And Ice (1827), Oceanography: Biological And Chemical: Modeling, Global Change: Water Cycles (1836), Information Related To Geographic Region: Antarctica

Scientific paper

Lake Vostok, isolated from direct exchange with the atmosphere for millions of years, provides a unique, so far inaccessible habitat. By using a numerical model, and recent geometry information, the lake circulation was investigated for different salinites. For freshwater, thermally driven circulation occurs, resulting from pressure-dependent melting point differences at the inclined ice ceiling. North to south ice pumping provides a steady supply of glacial water. The weak circulation is driven by very small density contrasts, but requires no unusual geothermal input. For low salinity conditions, however, circulation intensifies, occupying the entire lake. The maximum amplitudes of melting/freezing increase by about 50% and melting extends further south. For both conditions approximately 200 m of refrozen ice accumulates beneath Vostok Station. The lake habitat will be affected clearly by salinity. It is essential to establish the specific chemistry for comprehending this unique environment and planning in situ experiments.

Affiliated with

Also associated with

No associations

Rating

Salinity impact on water flow and lake ice in Lake Vostok, Antarctica does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Salinity impact on water flow and lake ice in Lake Vostok, Antarctica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Salinity impact on water flow and lake ice in Lake Vostok, Antarctica will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1467939