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Estimation of Surface Heat/Salt Fluxes Associated with Sea Ice Growth/Melt in the Southern Ocean

journal contribution
posted on 2023-05-17, 11:16 authored by Tamura, T, Ohshima, KI, Nihashi, S, Hasumi, H
The sinking of dense water in the polar oceans plays a key role in global thermohaline circulation, leading to heat and material exchange between the atmosphere and deep ocean. This study provides the first surface heat and salt flux dataset for the Southern Ocean (including a treatment of sea ice growth and melt), based on heat flux calculations and satellite-derived sea ice data. The geographical distribution of annual net heat (salt) flux shows a distinct contrast: significant cooling of (salt release into) the ocean occurs in the coastal region, and net heating of (freshwater release into) the ocean occurs in the offshore region. The work tries a quantitative representation of heat and freshwater transport by sea ice formed in the coastal region to offshore. Since hemisphericscale heat and salt fluxes associated with sea ice growth and melt have not been estimated from observations to date, the present dataset will provide new information with which to validate coupled ice-ocean models while providing important boundary conditions for the various models.


Publication title

SOLA: Scientific Online Letters on the Atmosphere








Institute for Marine and Antarctic Studies


Meteorological Society of Japan

Place of publication

Tokyo, Japan

Rights statement

Copyright 2011 Meteorological Society of Japan

Repository Status

  • Restricted

Socio-economic Objectives

Antarctic and Southern Ocean oceanic processes

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