气候变化领域集成服务门户(CCPortal): Seasonal and Solar Wind Sector Duration Influences on the Correlation of High Latitude Clouds With Ionospheric Potential

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DOI	10.1029/2020JD034201
	Seasonal and Solar Wind Sector Duration Influences on the Correlation of High Latitude Clouds With Ionospheric Potential
	Tinsley B.A.; Zhou L.; Wang L.; Zhang L.
发表日期	2021
ISSN	2169897X
卷号	126 期号:4
英文摘要	Irradiances from long-lived stratus-type clouds at Alert (Canada), Summit (Greenland), and South Pole, previously measured, show correlations with the day-to-day input to the global atmospheric electric circuit from the solar wind, as well as with the inputs of low- and mid-latitude thunderstorms and shower clouds. We analyze the measured Alert cloud irradiances, and find differences in the responses to 2, 4, or more solar wind sectors per 27-days solar rotation. We find seasonal variations in the correlations, with sign reversal in the summer. The correlation coefficients that were found previously for all-year, all sector types show further increases for just winter months and in addition, for just 2-sector intervals. At high magnetic latitudes, the ionospheric potential correlates strongly with the solar wind sector structure, and determines the flow of current density (JZ) to the Earth's surface that passes through clouds and modifies space charge in them. Parameterizations of the potential distribution near the magnetic pole are used in the correlations. The daily average values depend mainly on the solar wind (interplanetary) magnetic field (IMF) BY component, with lesser influence of the solar wind speed and IMF BZ. Mechanisms by which space charge in clouds can affect cloud microphysics and cloud opacity are described and are qualitatively consistent with the correlations, but need quantitative testing. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	atmospheric electricity; cloud microphysics; cloud opacity; day-to-day variability; solar wind; surface pressure
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185476
作者单位	University of Texas at Dallas, Dallas, TX, United States; East China Normal University, Shanghai, China
推荐引用方式 GB/T 7714	Tinsley B.A.,Zhou L.,Wang L.,et al. Seasonal and Solar Wind Sector Duration Influences on the Correlation of High Latitude Clouds With Ionospheric Potential[J],2021,126(4).
APA	Tinsley B.A.,Zhou L.,Wang L.,&Zhang L..(2021).Seasonal and Solar Wind Sector Duration Influences on the Correlation of High Latitude Clouds With Ionospheric Potential.Journal of Geophysical Research: Atmospheres,126(4).
MLA	Tinsley B.A.,et al."Seasonal and Solar Wind Sector Duration Influences on the Correlation of High Latitude Clouds With Ionospheric Potential".Journal of Geophysical Research: Atmospheres 126.4(2021).