40-Year Trends in Northern Hemisphere Surface Pressure*
- 1 May 1947
- journal article
- Published by American Meteorological Society in Bulletin of the American Meteorological Society
- Vol. 28 (5) , 237-247
- https://doi.org/10.1175/1520-0477-28.5.237
Abstract
An analysis of the pressure data from the Daily Historical Map series indicates a considerable decrease in the total mass of air over the Northern Hemisphere between 1899 and 1939. This trend toward lower surface pressure was more pronounced in the higher latitudes while some regions near the equator showed slight trends in the opposite direction.Keywords
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