| DOI: | 10.1002/2015GL064738
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| 论文题名: | Representing Greenland ice sheet freshwater fluxes in climate models |
| 作者: | Lenaerts J.T.M.; Le Bars D.; Van Kampenhout L.; Vizcaino M.; Enderlin E.M.; Van Den Broeke M.R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8627
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| EISSN: | 1944-8358
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| 出版年: | 2015
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| 卷: | 42, 期:15 | | 起始页码: | 6373
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| 结束页码: | 6381
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| 语种: | 英语
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| 英文关键词: | climate change
; climate modeling
; Greenland
; ice sheet
; melt
; ocean circulation
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| Scopus关键词: | Climate change
; Earth (planet)
; Glaciers
; Ice
; Melting
; Oceanography
; Runoff
; Water
; Atlantic meridional overturning circulations
; Coupled climate model
; Greenland
; Greenland Ice Sheet
; Ice sheet
; Ocean circulation
; Regional climate modeling
; Temporal resolution
; Climate models
; climate modeling
; freshwater environment
; global warming
; meltwater
; meridional circulation
; runoff
; summer
; troposphere
; Arctic
; Greenland
; Greenland Ice Sheet
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| 英文摘要: | Here we present a long-term (1850-2200) best estimate of Greenland ice sheet (GrIS) freshwater runoff that improves spatial detail of runoff locations and temporal resolution. Ice discharge is taken from observations since 2000 and assumed constant in time. Surface meltwater runoff is retrieved from regional climate model output for the recent past and parameterized for the future based on significant correlations between runoff and midtropospheric (500 hPa) summer temperature changes over the GrIS. The simplicity of this approach enables assimilation of meltwater runoff into coupled climate models, which is demonstrated here in a case study with the medium-resolution (1°) Community Earth System Model. The model results suggest that the decrease in Atlantic Meridional Overturning Circulation (AMOC) is dominated by warming of the surface ocean and enhanced GrIS freshwater forcing leads to a slightly enhanced (-1.2 sverdrup in the 21st century) weakening of the AMOC. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940451318&doi=10.1002%2f2015GL064738&partnerID=40&md5=7e92acb7d6b1ab19ef6e206ceeecdf4a
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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/8243
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| 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: | Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands
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| Recommended Citation: | |
Lenaerts J.T.M.,Le Bars D.,Van Kampenhout L.,et al. Representing Greenland ice sheet freshwater fluxes in climate models[J]. Geophysical Research Letters,2015-01-01,42(15).
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