应用科学学报 ›› 2010, Vol. 28 ›› Issue (2): 147-151.

• 信号与信息处理 • 上一篇    下一篇

多海洋参数赤潮MODIS综合监测

  

  1. 中国科学院对地观测与数字地球科学中心中国科学院数字地球科学重点实验室,北京100191
  • 收稿日期:2010-01-15 修回日期:2010-02-22 出版日期:2010-03-30 发布日期:2010-03-30
  • 作者简介:薛存金,博士,助理研究员,研究方向:海洋时空数据模型与海洋信息提取,E-mail:cjxue@ceode.ac.cn
  • 基金资助:

    国家“863”高技术研究发展计划基金(No.2009AA12Z102-10);国家“973”重大基础研究发展计划基金(No.2009CB723903);国家自然科学基金(No.40901194)资助

Red Tide MODIS Monitoring Based on Multi-oceanic Parameters

  1. Laboratory of Digital Earth Science, Center for Earth Observation and Digital Earth,
    Chinese Academy of Sciences, Beijing 100191, China
  • Received:2010-01-15 Revised:2010-02-22 Online:2010-03-30 Published:2010-03-30

摘要:

针对由单一海洋参数对赤潮灾害提取的不足,提出一种多海洋参数赤潮遥感监测技术. 该方法利用MODIS影像数据反演出海洋表面温度和叶绿素a浓度,结合悬浮泥沙浓度和海水异常等多海洋参数,设计赤潮灾害提取判别规则. 该判别规则能充分利用海洋参数在赤潮灾害提取中的优势,克服单一参数在赤潮灾害识别上的遗漏和误判. 以2004年5月30日和2004年6月11日渤海海域的MODIS影像为实验数据进行实例研究,证实了基于多海洋参数的赤潮遥感监测技术的可行性和有效性.

关键词: MODIS, 海洋参数, 赤潮监测, 判别规则

Abstract:

Taking into account the drawbacks in the red tide extraction from single oceanic parameter, this paper presents a new red tide monitoring technique using multiple oceanic parameters. The method focuses on the sea surface temperature and chlorophyll-a concentration retrieved from MODIS imagery. In combination with suspended sediment concentration and sea water abnormalities, we have designed the discrimination rules, which take full advantages of each oceanic parameter to extract red tides, and avoid missing and erroneous information obtained based on a single parameter. MODIS imageries acquired on May 30 and June 11, 2004, covering the Bohai Sea, are taken as an example to show validity and feasibility of the proposed method.

Key words: MODIS, oceanic parameters, red tide monitoring, discrimination rules

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