Are there weekly cycles in occurrence frequencies of large-scale circulation types?

作者：Beck Christoph^*

来源：Atmospheric Science Letters, 2012, 13(4): 238-243.

DOI：10.1002/asl.389

• weekly cycles
• atmospheric circulation
• circulation types
• North Atlantic
• Europe

The existence of weekly cycles in occurrence frequency distributions of circulation types is examined on the basis of a comprehensive data base of automated circulation-type classifications for the greater North Atlantic European region and sub-domains during the period 19572002. The main result is that the percentage of circulation types for which a statistical significant weekly cycle (95% level of confidence) could be detected by a chi-square goodness-of-fit test does not exceed the number that would be expected by chance. Thus it is concluded that no consistent weekly cycles in occurrence frequencies of circulation types exist.

• 出版日期2012-12