Climate Hazards Center’s Precipitation Climatology (CHPclim)
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The Climate Hazards Center's Precipitation Climatology version 1 (CHPclim v.1.0, data set available on our FTP) is a new geospatial modeling approach based on moving window regressions and inverse distance weighting interpolation. This approach combines satellite fields, gridded physiographic indicators, and in situ climate normals. The resulting global 0.05◦ 25 monthly precipitation climatology is shown to compare favorably with similar global climatology products, especially in areas with complex terrain and low station densities. A paper discussing the CHPclim is available at doi:10.5194/essdd-8-401-2015
气候灾害中心(Climate Hazards Center)发布的版本1降水气候学数据集(CHPclim v.1.0,数据集可通过其FTP获取),采用基于移动窗口回归(moving window regressions)与反距离加权插值(inverse distance weighting interpolation)的新型地理空间建模(geospatial modeling)方法。该方法融合了卫星场数据(satellite fields)、网格化地貌指标(gridded physiographic indicators)与原位气候基准值(in situ climate normals)。最终生成的空间分辨率为0.05°的全球25个月逐月降水气候学数据集,经对比表现优于同类全球气候学产品,在复杂地形及台站密度较低的区域尤为突出。相关研究论文可通过DOI:10.5194/essdd-8-401-2015获取,该论文针对CHPclim数据集展开了详细探讨。




