Planetary-Scale Forcing of the January 1977 Weather
- 20 January 1978
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 199 (4326) , 293-295
- https://doi.org/10.1126/science.199.4326.293
Abstract
The type of weather anomalies that occurred in the United States during January 1977 are typical of a planetary-scale wave phenomenon called stratospheric sudden warming (SSW). Specific changes in weather parameters nearly always accompany SSW. Blocking ridges (intensified high-pressure cells) develop over the oceans, the North Pole warms, mid-latitudes cool, and continental temperatures plunge. These characteristics usually persist for at least a month. When the SSW is strong, as in January 1958, 1963, and 1977, the accompanying weather anomalies can be unusually severe.Keywords
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