Abstract
We explore the associations between the total sunspot area, solar north-south
asymmetry, and Southern Oscillation Index and the physical characteristics of clouds by
calculating normalized cross-correlations, motivated by the idea that the galactic
cosmic ray influx modulated by solar activity may cause changes in cloud coverage, and
in turn the Earth’s climate. Unlike previous studies based on the relative difference,
we have employed cloud data as a whole time-series without detrending. We found that the
coverage of high-level and low-level cloud is at a maximum when the solar north-south
asymmetry is close to the minimum, and one or two years after the solar north-south
asymmetry is at a maximum, respectively. The global surface air temperature is at a
maximum five years after the solar north-south asymmetry is at a maximum, and the
optical depth is at a minimum when the solar north-south asymmetry is at a maximum. We
also found that during the descending period of solar activity, the coverage of
low-level cloud is at a maximum, and global surface air temperature and cloud optical
depth are at a minimum, and that the total column water vapor is at a maximum one or two
years after the solar maximum.
Publisher
The Korean Space Science Society
Subject
General Earth and Planetary Sciences,General Physics and Astronomy
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献