南极海冰密集度多源数据的交叉检验

赵羲; 苏昊月; 石中玉; 庞小平

doi:10.13203/j.whugis20150250

南极海冰密集度多源数据的交叉检验

1.
武汉大学中国南极测绘研究中心, 湖北武汉, 430079;
2.
国家知识产权局专利局专利审查协作湖北中心, 湖北武汉, 430070

基金项目: 国家自然科学基金青年科学基金资助项目(41301463);高等学校博士学科点专项科研新教师类基金资助项目(20130141120009);国家海洋局海洋大气化学与全球变化重点实验室开放研究基金资助项目(GCMAC1305);南北极环境综合考察与评估专项基金资助项目(CHINARE2015-04-07)。

详细信息

作者简介:
赵羲,博士,讲师,主要从事极地海冰遥感和空间数据不确定性方面的研究。E-mail:xi.zhao@whu.edu.cn

通讯作者:
庞小平,博士,教授。E-mail:pxp@whu.edu.cn

中图分类号: P228.41;TP751
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出版历程
- 收稿日期: 2015-04-20
- 发布日期: 2015-11-04

Intercomparison of Multi-Sources Sea Ice Concentration Data in Antarctic

1.
Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;
2.
Patent Examination Cooperation Hubei Center of the Patent Office, State Intellectual Property Office, Wuhan 430070, China

Funds: The National Natural Science Foundation of China, No.41301463;the Specialize Research Fund for the Doctoral Program of Higher Education of China, No.20130141120009;the Fund of Key Laboratory of Global Change and Marine-Atmospheric Chemistry, SOA, No. GCMAC1305;the Chinese Polar Environment Comprehensive Investigation & Assessment Programmes, No. CHINARE2015-04-07.

摘要

摘要: 通过研究交叉检验船测样点上的7种不同尺度的海冰密集度数据,发现相同时间和相同空间尺度的海冰密集度值吻合度最高,不同时间不同尺度的海冰密集度值的相关性较弱。由数据获取时间不同引起的密集度差异在高分辨率数据上体现明显。真实船测点与伪船测点之间的吻合度不高,受观测者主观因素、天气条件、影像处理质量和伪船测点提取方法的影响。虽然伪船测点方法在海冰边界研究中具有快速、大面积提取边界点的优势,但需要控制提取算法中的误差传播。
- 海冰密集度 /
- AMSR-E /
- MODIS /
- 海冰边界
Abstract: This study made comprehensive comparison of sea ice concentration derived from ship observations, optical and passive microwave images. Seven types of SIC derived from AMSR-E images and MODIS images were compared with RSO at 27 sample points between 2002 and 2007. The correlation between SIC derived from synchronous data observed at the same spatial scale had higher correlation coefficients than the others, whereas SICs observed at different times and scales displayed large inconsistencies. The correlation between SIC derived from data observed at the same spatial scale but at different times were affected by the spatial resolution. The RSO had considerably large differences with the PSO, the subjectivity in e visual estimation, weather conditions, quality of the image classification, and extraction method all attribute to their differences. Although the pseudo ship observation extraction method is helpful to generate large number of samples at the sea ice edges, error propagation must be controlled in the extraction process.
- sea ice concentration /
- AMSR-E /
- MODIS /
- sea ice edge

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参考文献(19)

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文章访问数: 1797
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南极海冰密集度多源数据的交叉检验

作者简介: 赵羲,博士,讲师,主要从事极地海冰遥感和空间数据不确定性方面的研究。E-mail:xi.zhao@whu.edu.cn

通讯作者: 庞小平,博士,教授。E-mail:pxp@whu.edu.cn

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出版历程

Intercomparison of Multi-Sources Sea Ice Concentration Data in Antarctic

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出版历程

目录

作者简介:
赵羲,博士,讲师,主要从事极地海冰遥感和空间数据不确定性方面的研究。E-mail:xi.zhao@whu.edu.cn

通讯作者:
庞小平,博士,教授。E-mail:pxp@whu.edu.cn