Observational characteristics of atmosph
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J. S. Sawyer
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Article
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1970
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John Wiley and Sons
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English
β 971 KB
## Abstract The time series of 500 mb heights and 1,000β500 mb thickness at a network of points over the Northern Hemisphere are filtered in a way which extracts those disturbances with periods in the range 15 to 60 days. Such disturbances are shown to have a maximum amplitude in latitudes 60 to 70