| DOI: | 10.1002/grl.50996
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| 论文题名: | Investigation of cosmic ray-cloud connections using MISR |
| 作者: | Krissansen-Totton J.; Davies R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8532
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| EISSN: | 1944-8263
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| 出版年: | 2013
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| 卷: | 40, 期:19 | | 起始页码: | 5240
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| 结束页码: | 5245
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| 语种: | 英语
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| 英文关键词: | albedo
; climate change
; cloud height
; cosmic rays
; Forbush decrease
; MISR
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| Scopus关键词: | albedo
; Cloud heights
; Continuous operation
; Forbush decrease
; International satellite cloud climatology projects
; MISR
; Multiangle imaging spectroradiometer
; Superposition analysis
; Climate change
; Global warming
; Solar radiation
; Cosmic rays
; albedo
; coronal mass ejection
; cosmic ray
; data set
; empirical analysis
; global warming
; MISR
; Terra (satellite)
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| 英文摘要: | Numerous empirical studies have analyzed International Satellite Cloud Climatology Project data and reached contradictory conclusions regarding the influence of solar-modulated galactic cosmic rays on cloud fraction and cloud properties. The Multiangle Imaging Spectroradiometer (MISR) instrument on the Terra satellite has been in continuous operation for 13 years and thus provides an independent (and previously unutilized) cloud data set to investigate purported solar-cloud links. Furthermore, unlike many previous solar-climate studies that report cloud fraction MISR measures albedo, which has clearer climatological relevance. Our long-term analysis of MISR data finds no statistically significant correlations between cosmic rays and global albedo or globally averaged cloud height, and no evidence for any regional or lagged correlations. Moreover, epoch superposition analysis of Forbush decreases reveals no detectable albedo response to cosmic ray decreases, thereby placing an upper limit on the possible influence of cosmic ray variations on global albedo of 0.0029 per 5% decrease. The implications for recent global warming are discussed. Key Points MISR provides independent check of purported cosmic ray-climate correlations No statistically significant correlation between cosmic rays and global albedo Forbush decrease analysis constrains max effect of cosmic rays on global albedo ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885349326&doi=10.1002%2fgrl.50996&partnerID=40&md5=68c3dd34ae050a50c6b54d7191d6148d
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5796
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Physics, University of Auckland, 38 Princes St., Auckland, 1142, New Zealand
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| Recommended Citation: | |
Krissansen-Totton J.,Davies R.. Investigation of cosmic ray-cloud connections using MISR[J]. Geophysical Research Letters,2013-01-01,40(19).
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