| 遥感和GIS技术在全球海面风速分析中的应用 |
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| 引用本文： | 陈戈,方朝阳.遥感和GIS技术在全球海面风速分析中的应用[J].遥感学报,2002,6(2):123-128. |
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| 作者姓名： | 陈戈 方朝阳 |
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| 作者单位： | 青岛海洋大学,海洋遥感研究所,山东,青岛,266003 |
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| 基金项目： | 国家杰出青年科学基金 ( 4 0 0 2 5 6 15 )，教育部“高等学校优秀青年教师教学科研奖励计划”资助 |
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| 摘 要： | 将遥感技术和地理信息系统（GIS）技术相结合，建立了一个基于TOPEX卫星的全球海面风速分析的海洋地理信息系统（MGIS）。阐述了全球海面风速分析模型的建立方法，定义了描述风场特征的相关参数，介绍了全球海面风速海洋地理信息系统的结构、功能和工作流程，另外，对系统的3个应用实例进行了地学分析。
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| 关 键 词： | 遥感 GIS 海面风速 |
| 文章编号： | 1007-4619(2002)02-0123-06 |
| 收稿时间： | 1/8/2001 12:00:00 AM |
| 修稿时间： | 2001年1月8日 |
Application of RS and GIS Technologies in the Analysis of Global Sea Surface Wind Speed |
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| CHEN Ge and FANG Chao-yang.Application of RS and GIS Technologies in the Analysis of Global Sea Surface Wind Speed[J].Journal of Remote Sensing,2002,6(2):123-128. |
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| Authors: | CHEN Ge and FANG Chao-yang |
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| Institution: | Ocean Remote Sensing Institute,Ocean University of Qingdao,Qingdao 266003,China;Ocean Remote Sensing Institute,Ocean University of Qingdao,Qingdao 266003,China |
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| Abstract: | As the largest source of momentum for the ocean surface, wind affects the full range of oceanic motion and
plays a very important part in air-sea interaction. It is recognized that remote sensing (RS) satellite has the capability of
acquiring high quality marine winds with fine resolution in both space and time. Meanwhile, geographical information
system(GIS) is becoming an unprecedented powerful tool for storing, processing, analyzing, and visualizing geo-spatial
data. Jointly using RS and GIS technologies, a marine GIS(MGIS) system based on satellite data is developed for the
analysis of global sea surface wind speed. TOPEX altimeter data between January 1993 and December 1998 which cover
the oceanic areas within±65°are used as input. An analytical model ofwind speed is proposed, on the basis ofwhich
seasonal,annual and interannual variabilities (both intensity and timing) are derived. TheMGIS consists of five function-
al modules: A database construction module, a human-computer interface module, a wind speed data preparation and
analysis module, a graphic and image production module and a typical illustration management module. The system also
includes three data files of model coefficient, coastal line, and typical graphics and images, respectively. A relational
database structure is adopted by the system. As examples of the application of thisMGIS, results of three thematic cases
are presented, namely, the global marine wind climatology, the Asian Monsoon, and the El Ni o related interannual
wind variability. These applications demonstrate the advantages of jointly usingRS and GIS in oceanographic studies. We
will continue to improve thisMGIS by expanding its functionality and incorporating other key geophysical parameters into
the system. |
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| Keywords: | ocean remote sensing marine geographical information system sea surface wind speed satellite altimeter |
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