DOI: 10.1002/2016GL068977
论文题名: Methane fluxes from the sea to the atmosphere across the Siberian shelf seas
作者: Thornton B.F. ; Geibel M.C. ; Crill P.M. ; Humborg C. ; Mörth C.-M.
刊名: Geophysical Research Letters
ISSN: 0094-8962
EISSN: 1944-8693
出版年: 2016
卷: 43, 期: 11 起始页码: 5869
结束页码: 5877
语种: 英语
英文关键词: Arctic
; East Siberian Sea
; Laptev Sea
; methane
; methane flux
Scopus关键词: Turbulence
; Arctic
; Bubble plumes
; Diffusive flux
; East-siberian seas
; High resolution
; Laptev Sea
; Methane fluxes
; Simultaneous measurement
; Methane
英文摘要: The Laptev and East Siberian Seas have been proposed as a substantial source of methane (CH4) to the atmosphere. During summer 2014, we made unique high-resolution simultaneous measurements of CH4 in the atmosphere above, and surface waters of, the Laptev and East Siberian Seas. Turbulence-driven sea-air fluxes along the ship's track were derived from these observations; an average diffusive flux of 2.99 mg m−2 d−1 was calculated for the Laptev Sea and for the ice-free portions of the western East Siberian Sea, 3.80 mg m−2 d−1. Although seafloor bubble plumes were observed at two locations in the study area, our calculations suggest that regionally, turbulence-driven diffusive flux alone accounts for the observed atmospheric CH4 enhancements, with only a local, limited role for bubble fluxes, in contrast to earlier reports. CH4 in subice seawater in certain areas suggests that a short-lived flux also occurs annually at ice-out. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973441916&doi=10.1002%2f2016GL068977&partnerID=40&md5=e2337e3b589e14a30a3d1a5e123d4fc9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9925
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geological Sciences, Stockholm University, Stockholm, Sweden
Recommended Citation:
Thornton B.F.,Geibel M.C.,Crill P.M.,et al. Methane fluxes from the sea to the atmosphere across the Siberian shelf seas[J]. Geophysical Research Letters,2016-01-01,43(11).