Association of the 11-year solar cycle with correlation and teleconnection structures in tropospheric circulation

被引:0
作者
Huth, Radan [1 ,2 ]
Stryhal, Jan [1 ]
机构
[1] Czech Acad Sci, Inst Atmospher Phys, Bocni II 1401A, Prague 14100, Czech Republic
[2] Charles Univ Prague, Fac Sci, Dept Phys Geog & Geoecol, Albertov 6, Prague 2, Czech Republic
来源
JOURNAL OF SPACE WEATHER AND SPACE CLIMATE | 2024年 / 14卷
关键词
Tropospheric circulation; Solar cycle; Teleconnections; Spatial autocorrelation; Sudden stratospheric warmings; NORTHERN-HEMISPHERE; VARIABILITY; MECHANISM; FIELD;
D O I
10.1051/swsc/2024031
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Analyzing spatial correlation structures and teleconnections in the 500 hPa heights of the Northern Hemisphere Extratropics in winter shows substantial differences between months with high and low solar activity. Patterns of spatial correlations of mid-tropospheric circulation differ between solar minima and maxima; the differences are geographically variable, particularly large and statistically significant in parts of the North Atlantic and North Pacific. Correlation structures of tropospheric circulation are significantly larger in solar maxima over parts of the North Atlantic. The geographical orientation of teleconnections is also associated with solar activity, the differences being most notable over the North Atlantic, North America, and the Arctic. The differences in teleconnections form a background for a response of modes of circulation variability and blocking anticyclones to solar activity, detected in previous studies. We detected no evidence of potential interference of responses to solar activity with quasi-biennial oscillation and volcanic eruptions; the interference with El Ni & ntilde;o-Southern Oscillation is unlikely. The response to solar activity may be partly confused with the response to major sudden stratospheric warmings; however, sudden stratospheric warmings themselves may respond to the solar cycle.
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页数:11
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