| DOI: | 10.5194/cp-11-559-2015
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| Scopus记录号: | 2-s2.0-84925983504
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| 论文题名: | Diminished greenhouse warming from Archean methane due to solar absorption lines |
| 作者: | Byrne B.; Goldblatt C.
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| 刊名: | Climate of the Past
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| ISSN: | 18149324
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| 出版年: | 2015
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| 卷: | 11, 期:3 | | 起始页码: | 559
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| 结束页码: | 570
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| 语种: | 英语
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| Scopus关键词: | absorbance
; Archean
; climate variation
; greenhouse gas
; haze
; methane
; paleoclimate
; solar radiation
; stratosphere
; tropopause
; warming
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| 英文摘要: | Previous research has shown that methane may have been sustained at high concentrations in the Archean atmosphere, helping to offset lower insolation and solve the faint young sun problem. However, recent updates to the HITRAN (High-Resolution Transmission) line database have significantly increased the shortwave absorption by CH4 in comparison to older versions of the database (e.g. HITRAN 2000). Here we investigate the climatological implications of strong shortwave CH4 absorption in an Archean atmosphere rich in CH4. We show that the surface warming at CH4 abundances >10-3 is diminished relative to the HITRAN 2000 line data. Strong shortwave absorption also results in a∼warm stratosphere and lower tropopause. We discuss these results in the context of contemporary research on the Archean climate and how these results could affect the formation of stratospheric clouds and an organic haze. © Author(s) 2015. |
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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/49156
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Byrne B.,Goldblatt C.. Diminished greenhouse warming from Archean methane due to solar absorption lines[J]. Climate of the Past,2015-01-01,11(3)
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