盐田水体的遥感分类方法研究

【作者】 王进华；

【导师】 张鹰；

【作者基本信息】 南京师范大学 ， 地图学与地理信息系统， 2003， 硕士

【摘要】 海盐的生产区域位于潮上带，是海洋和陆地的综合作用区域，对其进行详细的资源调查评价是非常有意义的工作。海盐生产作为一种低投入高产出的、可持续发展的、规模型的、化学工业发展必需的生态产业，加强对其宏观监测研究，提高对其规划管理的合理性和有效性是非常必要的。本文就遥感技术在盐田水体监测中的应用进行了研究和探讨，主要内容包括： 1．介绍了本文的研究背景和意义。 2．从实测数据出发，探讨在盐田的各种水体中，NaCL的含量对水体的光谱吸收系数的影响，并对不同种类水体的光谱特性进行分析。 3．详细介绍相对散射模型的应用过程，并进行大气辐射校正的检验。 4．比较各种数据融合方法的优缺点，并利用主成分融合方法进行研究区的分离。 5．对水体提取方法——比率测算法进行算法改进，提出盐田水体提取的最佳时相，基于各种盐田水体的光谱特征，详细阐述它们各自的提取方法。 6．总结农作物遥感估产方法，结合海盐生产过程，就盐田遥感估产方法进行探讨。更多还原

【Abstract】 Saltworks, lying in up of tide flat, is the region acted integratedly by the ocean and the land. It is very significant to investigate and evaluate the saltworks resource in detail. Salt field production is a ecologic, sustainable industry, which is low devoted but high outputed and necessary for chemistry industry, so it is very essential to strengthen the macro-supervise research of saltworks and increase the rationality and validity of the layout and administration of saltworks. This paper discusses how to supervise the salt field water by using remote sensing technology, the main content in the dissertation include:(1) The background and significant of the study.(2) In terms of measured data, we analyse the spectrum characteristic of the vary kinds of water, and summarize that the content of NaCl has little influence on the spectrum absorption coefficient in the pure solution of saltworks.(3) We introduce the course of applying the relative scatter model, and test the result of the atmospheric scattering correction.(4) We compare the virtue and the flaw of the data fusion techniques, and accurately separate the research region by principal component analysis data fusion technique.(5) Based on the spectrum characteristic of the vary kinds of water, we expound the method to extraction them, improve the method of proportion estimation, put forward the best opportunity for extractioning the water of salt field.(6) Summarize the methods to estimating the yield of crop, and discuss the methods to estimating the yield of salt field by remote sensing, combining the process of salt field production.更多还原