气候变化领域集成服务门户(CCPortal): Warm winter, thin ice?

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DOI	10.5194/tc-12-1791-2018
	Warm winter, thin ice?
	Stroeve J.C.; Schroder D.; Tsamados M.; Feltham D.
发表日期	2018
ISSN	19940416
卷号	12 期号:5
英文摘要	Winter 2016/2017 saw record warmth over the Arctic Ocean, leading to the least amount of freezing degree days north of 70° N since at least 1979. The impact of this warmth was evaluated using model simulations from the Los Alamos sea ice model (CICE) and CryoSat-2 thickness estimates from three different data providers. While CICE simulations show a broad region of anomalously thin ice in April 2017 relative to the 2011-2017 mean, analysis of three CryoSat-2 products show more limited regions with thin ice and do not always agree with each other, both in magnitude and direction of thickness anomalies. CICE is further used to diagnose feedback processes driving the observed anomalies, showing 11-13 cm reduced thermodynamic ice growth over the Arctic domain used in this study compared to the 2011-2017 mean, and dynamical contributions of +1 to +4 cm. Finally, CICE model simulations from 1985 to 2017 indicate the negative feedback relationship between ice growth and winter air temperatures may be starting to weaken, showing decreased winter ice growth since 2012, as winter air temperatures have increased and the freeze-up has been further delayed. © Author(s) 2018.
学科领域	air temperature; anomaly; CryoSat; freezing; ice thickness; model; sea ice; simulation; winter; Arctic Ocean; Los Alamos; New Mexico; United States
语种	英语
scopus关键词	air temperature; anomaly; CryoSat; freezing; ice thickness; model; sea ice; simulation; winter; Arctic Ocean; Los Alamos; New Mexico; United States
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119142
作者单位	Centre for Polar Observation and Modelling, Earth Sciences, University College London, London, United Kingdom; National Snow and Ice Data Center, University of Colorado, Boulder, CO, United States; Centre for Polar Observation and Modelling, Department of Meteorology, University of Reading, Reading, United Kingdom
推荐引用方式 GB/T 7714	Stroeve J.C.,Schroder D.,Tsamados M.,et al. Warm winter, thin ice?[J],2018,12(5).
APA	Stroeve J.C.,Schroder D.,Tsamados M.,&Feltham D..(2018).Warm winter, thin ice?.Cryosphere,12(5).
MLA	Stroeve J.C.,et al."Warm winter, thin ice?".Cryosphere 12.5(2018).