Summary
Greenhouse warming, although predicted to become especially pronounced in the polar regions, will be obscured there by the short-lived anomalies that are characteristic of polar climates. To detect a warming it then becomes necessary to examine and compare statistical parameters of such quasi-steady interludes. A new “change index (CI)” is proposed and used to demonstrate that a warming at four Alaskan airfields, reported by Bowling (1991), represented a distinct change from the temperature mean and/or variance of the preceding few years, and was followed by a slightly cooler regime that has persisted through 1994.
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Radok, U., Brown, T. In search of polar warming. Meteorl. Atmos. Phys. 67, 249–252 (1998). https://doi.org/10.1007/BF01277514
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DOI: https://doi.org/10.1007/BF01277514