DOI: 10.1002/2016GL071748
论文题名: Influence of sea ice on ocean water vapor isotopes and Greenland ice core records
作者: Klein E.S. ; Welker J.M.
刊名: Geophysical Research Letters
ISSN: 0094-8290
EISSN: 1944-8021
出版年: 2016
卷: 43, 期: 24 起始页码: 12475
结束页码: 12483
语种: 英语
英文关键词: Arctic Alaska
; cryosphere
; deuterium excess
; Greenland
; paleoclimate
; water isotopes
Scopus关键词: Deuterium
; Isotopes
; Moisture
; Sea ice
; Water vapor
; Arctic Alaska
; Cryosphere
; Deuterium excess
; Greenland
; Paleoclimates
; Water isotope
; Ice
英文摘要: A warming climate results in sea ice loss and impacts to the Arctic water cycle. The water isotope parameter deuterium excess, a moisture source proxy, can serve as a tracer to help understand hydrological changes due to sea ice loss. However, unlocking the sea ice change signal of isotopes from ice cores requires understanding how sea ice changes impact deuterium excess, which is unknown. Here we present the first isotope data linking a gradient of sea ice extents to oceanic water vapor deuterium excess values. Initial loss of sea ice extent leads to lower deuterium excess moisture sources, and then values progressively increase with further ice loss. Our new process-based interpretation suggests that past rapid (1–3 years) Greenland ice core changes in deuterium excess during warming might not be the result of abrupt atmospheric circulation shifts, but rather gradual loss of sea ice extent at northern latitude moisture sources. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008471477&doi=10.1002%2f2016GL071748&partnerID=40&md5=aa2bca4c1222b7a522510b406b4c7593
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9253
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 Biological Sciences, University of Alaska Anchorage, Anchorage, AK, United States
Recommended Citation:
Klein E.S.,Welker J.M.. Influence of sea ice on ocean water vapor isotopes and Greenland ice core records[J]. Geophysical Research Letters,2016-01-01,43(24).