DOI: 10.1002/2014GL061606
论文题名: Dissociation of Cascadia margin gas hydrates in response to contemporary ocean warming
作者: Hautala S.L. ; Solomon E.A. ; Johnson H.P. ; Harris R.N. ; Miller U.K.
刊名: Geophysical Research Letters
ISSN: 0094-9529
EISSN: 1944-9260
出版年: 2014
卷: 41, 期: 23 起始页码: 8486
结束页码: 8494
语种: 英语
英文关键词: Cascadia Basin
; gas hydrate
; North Pacific Intermediate Water
; ocean warming
Scopus关键词: Climate change
; Climate models
; Dissociation
; Gases
; Hydration
; Methane
; Oceanography
; Petroleum reservoir evaluation
; Sediments
; Cascadia
; Continental margin
; Continental slope
; Gas hydrate reservoir
; Geographic ranges
; North Pacific
; Ocean warming
; Sediment column
; Gas hydrates
; carbon cycle
; carbon emission
; continental slope
; gas hydrate
; methane
; sediment chemistry
; United States
; Washington [United States]
英文摘要: Gas hydrates, pervasive in continental margin sediments, are expected to release methane in response to ocean warming, but the geographic range of dissociation and subsequent flux of methane to the ocean are not well constrained. Sediment column thermal models based on observed water column warming trends offshore Washington (USA) show that a substantial volume of gas hydrate along the entire Cascadia upper continental slope is vulnerable to modern climate change. Dissociation along the Washington sector of the Cascadia margin alone has the potential to release 45-80 Tg of methane by 2100. These results highlight the importance of lower latitude warming to global gas hydrate dynamics and suggest that contemporary warming and downslope retreat of the gas hydrate reservoir occur along a larger fraction of continental margins worldwide than previously recognized. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921609501&doi=10.1002%2f2014GL061606&partnerID=40&md5=9ab24ff41ebd7c5d6751f04fd4f95219
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6793
Appears in Collections: 气候减缓与适应
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作者单位: School of Oceanography, University of Washington, Seattle, WA, United States
Recommended Citation:
Hautala S.L.,Solomon E.A.,Johnson H.P.,et al. Dissociation of Cascadia margin gas hydrates in response to contemporary ocean warming[J]. Geophysical Research Letters,2014-01-01,41(23).