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Article: Possible Feedback of Winter Sea Ice in the Greenland and Barents Seas on the Local Atmosphere
- Article from:
- Monthly Weather Review
- Article date:
- July 1, 2004
- Author:
CopyrightCopyright American Meteorological Society Jul 2004. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Using monthly Arctic sea ice concentration data (1953-95) and the National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) reanalysis dataset (1958-99), possible feedbacks of sea ice variations in the Greenland and Barents Seas to the atmosphere are investigated. Winter (February-April) sea ice anomalies in the Greenland and Barents Seas display important feedback influences on the atmospheric boundary layer in terms of both thermodynamic and dynamic processes. The vertical gradients of potential pseudo-equivalent temperature ([theta]^sub se^) between 850 and 700 hPa are greater over sea ice than over open water, implying that a more stable ...