On the Horizontal Scale of Elevation Dependence of Australian Monthly Precipitation
On the Horizontal Scale of Elevation Dependence of Australian Monthly Precipitation
复制标题
澳大利亚月降水量高程依赖性的水平尺度
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
D. R. Jellett
中科院分区：
文献类型：
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作者：
J. Sharples;M. Hutchinson;D. R. Jellett
摘要 确定降水与地形相互作用的尺度对于准确插值山区降水具有重要意义，也有助于深入了解所涉及的物理过程。本文采用三变量薄板平滑样条，通过对澳大利亚大陆三个次区域的月降雨量进行插值，结合不同的气候条件和降雨类型，研究月降水量与地形之间相互作用的尺度。插值基于从各种分辨率的数字高程模型 (DEM) 导出的高程。所有 DEM 均为澳大利亚 9 秒分辨率 DEM 2.0 版本的本地平均值。结果表明，降水与地形之间相互作用的最佳尺度（涉及澳大利亚月降水的高程相关插值）在 5 至 10 公里之间。这与类似研究的结果一致，这些研究涉及......
Abstract Determination of the scale of the interaction between precipitation and topography is important for the accurate interpolation of rainfall in mountainous areas and also provides insight into the physical processes involved. In this paper, trivariate thin-plate smoothing splines are used to investigate the scale of interaction between monthly precipitation and topography by interpolating monthly rainfall over three subregions of the Australian continent, incorporating different climatic conditions and rainfall types. The interpolations are based upon elevations derived from digital elevation models (DEMs) of various resolutions. All of the DEMs are local averages of version 2.0 of the 9-s-resolution DEM of Australia. The results suggest that the optimal scale of the interaction between precipitation and topography, as it pertains to the elevation-dependent interpolation of monthly precipitation in Australia, is between 5 and 10 km. This is in agreement with results of similar studies that addresse...