The Connection between Trends of Mean Temperature and Circulation at the Surface: Part III. Spring and Autumn

Jill Williams National Center for Atmospheric Research, Boulder, Colo. 80303

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Harry Van Loon National Center for Atmospheric Research, Boulder, Colo. 80303

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Abstract

The sign of the weighted temperature change over two periods (1950–64, 1942–72) for 15°–80°N was determined by the change in the polar region in spring and autumn, as it was in winter but not in summer. Each of the four seasons shows a different distribution of zonally averaged temperature changes.

Abstract

The sign of the weighted temperature change over two periods (1950–64, 1942–72) for 15°–80°N was determined by the change in the polar region in spring and autumn, as it was in winter but not in summer. Each of the four seasons shows a different distribution of zonally averaged temperature changes.

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