| 降水量等值线图自动绘制的新方法 |
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| 引用本文： | 谢伙生. 降水量等值线图自动绘制的新方法[J]. 福州大学学报(自然科学版), 2000, 28(3): 46-50 |
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| 作者姓名： | 谢伙生 |
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| 作者单位： | 福州大学计算机科学与技术系,福建,福州,350002 |
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| 摘 要： | 提出降水分布的地理Thiessen模型 ,解决了作为降水量插值的权重未能很好地反映降水物理特性的问题 ;提供不同历时观测值的转换公式 ,解决了观测资料中观测历时可能出现的不同步问题 ;利用一次性跟综等值线簇的方法跟综等值线 ;用线性迭代法和分段三次B样条曲线对等值线进行光滑处理 .新方法已编程实现 .
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| 关 键 词： | 地理Thiessen模型 等值线 计算 方法 |
A New Method of Drawing Rainfall Contour Map |
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| XIE Huo-sheng. A New Method of Drawing Rainfall Contour Map[J]. Journal of Fuzhou University(Natural Science Edition), 2000, 28(3): 46-50 |
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| Authors: | XIE Huo-sheng |
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| Affiliation: | XIE Huo-sheng (Department of Computer Science and Technology, Fuzhou University, Fuzhou Fujian 350002, China) |
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| Abstract: | The geographical Thiessen model of the distribution of rainfall is introduced in the new method, which solves the problem that the weight of the rainfall interpolation is not able to reflect properly the geographical feature of rainfall; provides the transformed formula of asynchronous observed value , which settles the problem of asynchronous observed data; makes use of the one-through way of tracing contour line to trace contour line; and uses the method of linear iterative method and cubic B-spline curve to smooth and fit contour line. The new method has been implemented with computer language. |
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| Keywords: | geographic Thiessen model contour map computing method |
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