Arctic sea ice thickness changes in terms of sea ice age
文献类型：CNKI期刊论文
| 作者 | BI Haibo; FU Min; SUN Ke; LIU Yilin ; XU Xiuli; HUANG Haijun
|
| 发表日期 | 2016-10-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | sea ice thickness age ICESat PIOMAS |
| 英文摘要 | In this study, changes in Arctic sea ice thickness for each ice age category were examined based on satellite observations and modelled results. Interannual changes obtained from Ice, Cloud, and Land Elevation Satellite(ICESat)-based results show a thickness reduction over perennial sea ice(ice that survives at least one melt season with an age of no less than 2 year) up to approximately 0.5–1.0 m and 0.6–0.8 m(depending on ice age) during the investigated winter and autumn ICESat periods, respectively. Pan-Arctic Ice Ocean Modeling and Assimilation System(PIOMAS)-based results provide a view of a continued thickness reduction over the past four decades. Compared to 1980 s, there is a clear thickness drop of roughly 0.50 m in 2010 s for perennial ice. This overall decrease in sea ice thickness can be in part attributed to the amplified warming climate in north latitudes. Besides, we figure out that strongly anomalous southerly summer surface winds may play an important role in prompting the thickness decline in perennial ice zone through transporting heat deposited in open water(primarily via albedo feedback) in Eurasian sector deep into a broader sea ice regime in central Arctic Ocean. This heat source is responsible for enhanced ice bottom melting, leading to further reduction in ice thickness. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The National Natural Science Foundation of China under contract No.41406215 ; the Postdoctoral Science Foundation of China under contract No.2014M561971 ; the Open fund for the Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences under contract No.MGE2013KG07 ; the Chinese Polar Environment Comprehensive Investigation and Assessment Program,State Oceanic Administration under contract Nos CHINARE2014-03-01 and CHINARE2014-04-03 |
| 卷 | v.35期:10页:5-14 |
| 语种 | 英文; |
| 分类号 | P731.15 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189522]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.NationalMarineEnvironmentalForecastingCenter 3.TheFirstInstituteofOceanology,StateOceanicAdministration |
| 推荐引用方式 GB/T 7714 | BI Haibo,FU Min,SUN Ke,et al. Arctic sea ice thickness changes in terms of sea ice age. 2016. |
入库方式： OAI收割
来源：海洋研究所
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