| 基于卫星观测的2003-2013年北极海冰体积变化估算 |
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| 引用本文： | 付敏,毕海波,杨清华,张林,王云鹤,张泽华,黄海军.基于卫星观测的2003-2013年北极海冰体积变化估算[J].海洋学报,2018,40(11):14-22. |
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| 作者姓名： | 付敏 毕海波 杨清华 张林 王云鹤 张泽华 黄海军 |
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| 作者单位： | 1.国家海洋环境预报中心, 北京 100081 |
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| 基金项目： | 国家重点研发计划（2018YFC1407205，2016YFC1402705，2016YFC1402707） |
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| 摘 要： | 北极海冰正处于快速减退时期，北极海冰体积变化是全球气候变化的重要指示因子。本文利用两种卫星高度计数据（ICESat和CryoSat-2）反演得到的海冰厚度数据，结合星载辐射计提取的海冰密集度数据以及海冰年龄数据，估算了近期的北极海冰体积以及一年冰和多年冰体积变化。CryoSat-2观测时段（2011-2013年）与ICESat观测时段（2003-2008年）相比，北极海冰体积在秋季（10-11月）和冬季（2-3月）分别减少了1 426 km3和412 km3。其中，秋季和冬季的一年冰的体积增加了702 km3和2 975 km3。相反，多年冰分别减少了2 108 km3和3 206 km3。多年冰的大量流失是造成北极海冰净储量下降的主要原因。
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| 关 键 词： | 海冰体积变化 北极 卫星遥感 ICESat CryoSat-2 |
| 收稿时间： | 2018/1/19 0:00:00 |
| 修稿时间： | 2018/5/3 0:00:00 |
Estimation of the Arctic sea ice volume based on satellite observations during 2003-2013 |
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| Fu Min,Bi Haibo,Yang Qinghu,Zhang Lin,Wang Yunhe,Zhang Zehua and Huang Haijun.Estimation of the Arctic sea ice volume based on satellite observations during 2003-2013[J].Acta Oceanologica Sinica (in Chinese),2018,40(11):14-22. |
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| Authors: | Fu Min Bi Haibo Yang Qinghu Zhang Lin Wang Yunhe Zhang Zehua and Huang Haijun |
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| Institution: | National Marine Environmental Forecasting Center, Beijing 100081, China,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy Sciences, Beijing 100049, China;Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China,Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai 519082, China,National Marine Environmental Forecasting Center, Beijing 100081, China,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy Sciences, Beijing 100049, China,Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China and Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy Sciences, Beijing 100049, China;Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China |
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| Abstract: | Arctic sea ice is undergoing a rapid decline, and the Arctic sea ice volume is an important indicator of global climate change. Sea ice thickness data from two kinds of satellite altimetry data (ICESat and CryoSat-2), together with sea ice concentration data and sea ice age data derived from space borne radiometers, the total and the first-year/multi-year Arctic sea ice volume from 2003 to 2013 were estimated. Comparison between the ICESat period from 2003 to 2008 and the CryoSat-2 period from 2011 to 2013, the Arctic sea ice volume had been decreased by 1 426 km3 and 412 km3 in autumn (October-November) and winter (February-March), respectively. These changes are mainly caused by significant reduction of the multi-year sea ice volume in these ten years, the ice volume in autumn and winter had been decreased by 2 108 km3 and 3 206 km3, respectively. Therefore, the dramatic depletion of multi-year sea ice is the main factor of causing Arctic sea ice volume loss. |
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| Keywords: | sea ice volume changes Arctic satellite remote sensing ICESat CryoSat-2 |
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