Accession Number : ADP007306

Title :   Energy Exchange Over Antarctic Sea Ice in Late Winter,

Corporate Author : ALFRED WEGENER INST FOR POLAR AND MARINE RESEARCH BREMERHAVEN (GERMANY)

Personal Author(s) : Koenig-Langlo, G. ; Ivanov, B. ; Zachek, A.

Report Date : MAR 1992

Pagination or Media Count : 5

Abstract : In September and October 1989 during the Winter Weddell Gyre Study energy balance measurements were performed from the Soviet ice-breaker Akademik Fedorov. The average radiation balance of the sea ice surface turned out to be zero, i.e., short-wave radiation gains were, fully compensated by long-wave radiation losses. Due to turbulent fluxes of sensible and latent heat the atmosphere received about 25 W m-2 energy from the ice/ocean system. Since no significant ice melting or freezing was observed, the latter must originate mainly from warm deep water which is entrained into the oceanic mixed layer.

Descriptors :   *ATMOSPHERICS, *SEA ICE, BALANCE, DEEP WATER, ENERGY, FREEZING, LATENT HEAT, MEASUREMENT, MELTING, OCEANS, RADIATION, ENVIRONMENTAL IMPACT, GREENHOUSE EFFECT.

Subject Categories : Atmospheric Physics
      Meteorology
      Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE