DOI: 10.1007/s00382-017-3972-7
Scopus记录号: 2-s2.0-85032828525
论文题名: On the sensitivity of Antarctic sea ice model biases to atmospheric forcing uncertainties
作者: Barthélemy A. ; Goosse H. ; Fichefet T. ; Lecomte O.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 4 起始页码: 1585
结束页码: 1603
语种: 英语
英文关键词: Antarctic
; Atmospheric forcing
; Model
; Sea ice
; Uncertainties
Scopus关键词: atmospheric forcing
; ice thickness
; modeling
; sea ice
; sensitivity analysis
; uncertainty analysis
; Antarctica
英文摘要: Although atmospheric reanalyses are an extremely valuable tool to study the climate of polar regions, they suffer from large uncertainties in these data-poor areas. In this work, we examine how Antarctic sea ice biases in an ocean-sea ice model are related to these forcing uncertainties. Three experiments are conducted in which the NEMO-LIM model is driven by different atmospheric forcing sets. The minimum ice extent, the ice motion and the ice thickness are sensitive to the reanalysis chosen to drive the model, while the wintertime ice extent and inner pack concentrations are barely affected. The analysis of sea ice concentration budgets allows identifying the processes leading to differences between the experiments, and also indicates that large and similar errors compared to observations are present in all three cases. Our assessment of the influence of forcing inaccuracies on the simulated Antarctic sea ice allows disentangling two types of model biases: the ones that can be reduced thanks to better atmospheric forcings, and those that would require improvements of the physics of the ice or ocean model. © 2017, Springer-Verlag GmbH Germany. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109196
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: Georges Lemaître Centre for Earth and Climate Research (TECLIM), Earth and Life Institute (ELI), Université catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
Recommended Citation:
Barthélemy A.,Goosse H.,Fichefet T.,et al. On the sensitivity of Antarctic sea ice model biases to atmospheric forcing uncertainties[J]. Climate Dynamics,2018-01-01,51(4)