| 基于DEM的大连市降水量的空间栅格化 |
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| 引用本文： | 祝青林,王丽娜.基于DEM的大连市降水量的空间栅格化[J].安徽农业科学,2010(25):13871-13872,13878. |
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| 作者姓名： | 祝青林 王丽娜 |
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| 作者单位： | 1. 辽宁省大连市气象台,辽宁大连,116001
2. 辽宁省大连市人工影响天气办公室,辽宁大连,116001 |
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| 基金项目： | 中国气象局项目"东北地区生态与粮食安全监测评价预警系统"，大连市科技委项目 |
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| 摘 要： | 利用近30年大连市8个常规气象站和36个水文站点降水观测数据,在1：5万数字高程模型支持下,采用光滑薄面样条插值法对大连地区各月及年降水量进行空间插值,在ArcMap中进行图象处理和分类,完成了100m高分辨率的大连地区降水量空间栅格化,在此基础上分析了降水量的空间分布特征。结果表明,大连地区降水量分布不均,空间分布趋势为东部多于西部,北部多于南部,自西南向东北递增。
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| 关 键 词： | 数字高程模型 GIS 降水量 空间栅格化 |
Spatialization of Precipitation in Dalian based on DEM |
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| ZHU Qing-lin et al.Spatialization of Precipitation in Dalian based on DEM[J].Journal of Anhui Agricultural Sciences,2010(25):13871-13872,13878. |
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| Authors: | ZHU Qing-lin |
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| Institution: | ZHU Qing-lin et al (Dalian Meteorological Observatory,Dalian,Liaoning 116001) |
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| Abstract: | Based on the observation data of 8 meteorological stations and 36 hydrologic stations of Dalian City during the late 30 years and supported by the 1:50 000 digital elevation model (DEM),the monthly and annual precipitation is spatially interpolated by plate smoothing spline interpolation method,the images are processed and classified in Arcmap,and the spatialization of precipitation with 100m high resolution is conducted,based on all those above,the spatial distribution of precipitation is analyzed.Results ... |
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| Keywords: | GIS |
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