Winter sea ice albedo variations in the Bohai Sea of China

ZHENG Jiajia; KE Changqing; SHAO Zhude

doi:10.1007/s13131-017-0993-3

渤海冬季海冰反照率变化

doi: 10.1007/s13131-017-0993-3

1.
江苏省地理信息技术重点实验室, 南京大学, 南京 210023;软件新技术与产业化协同创新中心, 南京 210023;中国南海研究协同创新中心, 南京 210023;江苏省地理信息资源开发与利用协同创新中心, 南京 210023
2.
卫星测绘技术国家测绘地理信息局重点实验室, 南京大学, 南京 210023;软件新技术与产业化协同创新中心, 南京 210023;中国南海研究协同创新中心, 南京 210023;江苏省地理信息资源开发与利用协同创新中心, 南京 210023

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出版历程
- 收稿日期: 2015-11-29
- 修回日期: 2016-02-24

Winter sea ice albedo variations in the Bohai Sea of China

1.
Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing 210023, China;Collaborative Innovation Center of Novel Software Technology and Industrialization, Nanjing 210023, China;Collaborative Innovation Center of South China Sea Studies, Nanjing 210023, China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
2.
Key Laboratory for Satellite Mapping Technology and Applications of State Administration of Surveying, Mapping and Geoinformation of China, Nanjing University, Nanjing 210023, China;Collaborative Innovation Center of Novel Software Technology and Industrialization, Nanjing 210023, China;Collaborative Innovation Center of South China Sea Studies, Nanjing 210023, China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China

摘要

摘要: 渤海海冰对于大尺度气候变化比较敏感，基于CLARA-A1-SAL数据分析了1992~2008年冬季（12、1、2月）渤海海冰区域反照率的时空变化，同时分析了海冰密集度、海冰外延线面积和海水表面温度的变化与海冰反照率的相互关系。渤海海冰区域反照率随时间波动变化且变化趋势不明显，趋势线斜率仅为0.0388%。年际变化在9.93%~14.5%之间，平均值为11.79%。海冰反照率在1999，2000和2005等重冰年的值明显高于其他年份，在1994，1998，2001和2006等轻冰年的值较低。从单个月份反照率来看，12月海冰反照率的增加趋势（趋势线斜率0.0988%）明显高于1月和2月，1月的海冰反照率平均值（12.9%）高于另外两个月份。海冰反照率和海冰密集度呈明显的正相关关系；和海表面温度呈负相关关系（显著性水平90%）。
- 渤海海冰区域 /
- 反照率 /
- 时空变化 /
- 趋势 /
- 海冰密集度 /
- 海冰范围 /
- 海表温度
Abstract: Sea ice conditions in the Bohai Sea of China are sensitive to large-scale climatic variations. On the basis of CLARA-A1-SAL data, the albedo variations are examined in space and time in the winter (December, January and February) from 1992 to 2008 in the Bohai Sea sea ice region. Time series data of the sea ice concentration (SIC), the sea ice extent (SIE) and the sea surface temperature (SST) are used to analyze their relationship with the albedo. The sea ice albedo changed in volatility appears along with time, the trend is not obvious and increases very slightly during the study period at a rate of 0.388% per decade over the Bohai Sea sea ice region. The interannual variation is between 9.93% and 14.50%, and the average albedo is 11.79%. The sea ice albedo in years with heavy sea ice coverage, 1999, 2000 and 2005, is significantly higher than that in other years; in years with light sea ice coverage, 1994, 1998, 2001 and 2006, has low values. For the monthly albedo, the increasing trend (at a rate of 0.988% per decade) in December is distinctly higher than that in January and February. The mean albedo in January (12.90%) is also distinctly higher than that in the other two months. The albedo is significantly positively correlated with the SIC and is significantly negatively correlated with the SST (significance level 90%).
- Bohai Sea sea ice region /
- albedo /
- variations in space and time /
- trend /
- sea ice concentration /
- sea ice extent /
- sea surface temperature

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参考文献(37)

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文章访问数: 1255
HTML全文浏览量: 66
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渤海冬季海冰反照率变化

doi: 10.1007/s13131-017-0993-3

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出版历程

Winter sea ice albedo variations in the Bohai Sea of China

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出版历程

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