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Publication . Article . 2008

Sea ice, high-latitude convection, and equable climates

Dorian S. Abbot; Eli Tziperman;
Open Access
Published: 09 Feb 2008 Journal: Geophysical Research Letters, volume 35 (issn: 0094-8276, Copyright policy )
Publisher: American Geophysical Union (AGU)

[1] It is argued that deep atmospheric convection might occur during winter in ice-free high-latitude oceans, and that the surface radiative warming effects of the clouds and water vapor associated with this winter convection could keep high-latitude oceans ice-free through polar night. In such an ice-free high-latitude ocean the annual-mean SST would be much higher and the seasonal cycle would be dramatically reduced - making potential implications for equable climates manifest. The constraints that atmospheric heat transport, ocean heat transport, and CO 2 concentration place on this mechanism are established. These ideas are investigated using the NCAR column model, which has state-of-the-art atmospheric physics parameterizations, high vertical resolution, a full seasonal cycle, a thermodynamic sea ice model, and a mixed layer ocean.

Subjects by Vocabulary

Microsoft Academic Graph classification: Water vapor Sea surface temperature Environmental science Sea ice geography.geographical_feature_category geography Atmospheric physics Polar night Convection Mixed layer Atmospheric convection Climatology

arXiv: Physics::Atmospheric and Oceanic Physics Physics::Geophysics Astrophysics::Earth and Planetary Astrophysics


General Earth and Planetary Sciences, Geophysics

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