Relationships between Arctic Sea Ice and Clouds during Autumn

Author:

Schweiger Axel J.1,Lindsay Ron W.1,Vavrus Steve2,Francis Jennifer A.3

Affiliation:

1. Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, Washington

2. Center for Climate Research, University of Wisconsin—Madison, Madison, Wisconsin

3. Institute of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, New Jersey

Abstract

Abstract The connection between sea ice variability and cloud cover over the Arctic seas during autumn is investigated by analyzing the 40-yr ECMWF Re-Analysis (ERA-40) products and the Television and Infrared Observation Satellite (TIROS) Operational Vertical Sounder (TOVS) Polar Pathfinder satellite datasets. It is found that cloud cover variability near the sea ice margins is strongly linked to sea ice variability. Sea ice retreat is linked to a decrease in low-level cloud amount and a simultaneous increase in midlevel clouds. This pattern is apparent in both data sources. Changes in cloud cover can be explained by changes in the atmospheric temperature structure and an increase in near-surface temperatures resulting from the removal of sea ice. The subsequent decrease in static stability and deepening of the atmospheric boundary layer apparently contribute to the rise in cloud level. The radiative effect of this change is relatively small, as the direct radiative effects of cloud cover changes are compensated for by changes in the temperature and humidity profiles associated with varying ice conditions.

Publisher

American Meteorological Society

Subject

Atmospheric Science

Reference32 articles.

1. Toward an explanation of the annual cycle of cloudiness over the Arctic Ocean.;Beesley;J. Climate,1999

2. 30-year satellite record reveals contrasting Arctic and Antarctic decadal sea ice variability.;Cavalieri;Geophys. Res. Lett.,2003

3. Comeaux, J. L., and J.Worley, 2005: ECMWF 45-Year Reanalysis Data from NCAR. Preprints, 21st Int. Conf. on Interactive Information Processing Systems (IIPS) for Meteorology, Oceanography, and Hydrology, San Diego, CA, Amer. Meteor. Soc., P2.34.

4. Relationships between large-scale heat and moisture budgets and the occurrence of arctic stratus clouds.;Curry;Mon. Wea. Rev.,1985

5. Annual cycle of radiation fluxes over the Arctic Ocean: Sensitivity to cloud optical properties.;Curry;J. Climate,1992

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