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Solar activity and the weatherSome new evidence that the weather is influenced by solar activity is reviewed. It appears that the solar magnetic sector structure is related to the circulation of the earth's atmosphere during local winter. About 3 1/2 days after the passage of a sector boundary the maximum effect is seen; apparently the height of all pressure surfaces increases in high latitudes leading to anticyclogenesis, whereas at midlatitudes the height of the pressure surfaces decreases leading to low pressure systems or to deepening of existing systems. This later effect is clearly seen as an increase in the area of the base of air with absolute vorticity exceeding a given threshold. Since the increase of geomagnetic activity generally is small at a sector boundary it is speculated that geomagnetic activity as such is not the cause of the response to the sector structure but that both weather and geomagnetic activity are influenced by the same (unknown) mechanism.
Document ID
19750035096
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Svalgaard, L.
(Stanford University Stanford, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Correlated interplanetary and magnetospheric observations; Seventh ESLAB Symposium
Location: Saulgau
Start Date: May 22, 1973
End Date: May 25, 1973
Accession Number
75A19168
Funding Number(s)
CONTRACT_GRANT: N00014-67-A-0112-0068
CONTRACT_GRANT: NGR-05-020-559
CONTRACT_GRANT: NSF GA-31138
Distribution Limits
Public
Copyright
Other

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