| 基于等值线的海区网格插值算法研究 |
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| 引用本文： | 季民,李婷.基于等值线的海区网格插值算法研究[J].计算机应用,2009,29(Z2). |
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| 作者姓名： | 季民 李婷 |
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| 作者单位： | 山东科技大学,测绘科学与工程学院,山东,青岛,266510 |
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| 基金项目： | 海岛(礁)测绘技术国家测绘局重点实验室资助项目，现代工程测量国家测绘局重点实验室开放课题资助项目，国家海洋局海洋溢油鉴别与损害评估技术重点实验室开放基金资助项目 |
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| 摘 要： | 为了将人类长期海洋观测所获取的矢量等值线数据与遥感反演等所获取的栅格数据进行比对运算,存在由等值线到海区网格的插值需求.以海洋表层水温矢量等值线为例,运用具有层次嵌套关系的三级分辨率海区网格,对等值线进行了离散化,通过建立离散点与海区网格之间的空问索引关系,并运用顾及方向的单点移面平均加权法,进行了海区网格点插值运算过程的研究.
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| 关 键 词： | 矢量等值线 海区网格 单点移面插值运算 海洋表层水温 空间索引 |
Research of ocean grid interpolating algorithm based on isoline |
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| JI Min,LI Ting.Research of ocean grid interpolating algorithm based on isoline[J].journal of Computer Applications,2009,29(Z2). |
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| Authors: | JI Min LI Ting |
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| Abstract: | In order to contrast the vector marine isoline data gotten by human long-term observation with the grid data obtained by inversing of remote sensing, there is a requirement of interpolating the isoline data to the correspending ocean grids. The ocean grid interpolating algorithm was proposed by using the sea surface temperature data. In the algorithm, the isoline was scattered by intersection operation with higher resolution girds, and the indexing relationships were contructed between discrete points and ocean grids. Through adopting the single-peint surface moving average weighted algorithm, the whole interpolation procedure was realized. |
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| Keywords: | vector isoline ocean grid single-point surface moving average weighted algorithm sea surface temperature spatial indexing |
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