Version 7 Late 7-Day IMERG_GIS

This near-realtime dataset provides, in a GIS-friendly format, the surface precipitation estimates and precipitation-phase information covering 7-day periods at 0.1-degree resolution from June 2000 to the present. The parent of this GIS product is the half-hour IMERG HDF5 data product. This GIS product is a zip file that contains two-byte TIFF files accompanied by ESRI WorldFile metadata. The TIFF files contain scaled units of precipitation accumulation (millimeters) or the percent likelihood that 100% of the precipitation in a particular gridbox fell as liquid or mixed phase precipitation (i.e., not 100% solid-phase precipitation). The grid covers the entire Earth, 90S to 90N and 180W to 180E although precipitation is not always estimated near the poles.

本近实时数据集以兼容地理信息系统（GIS）友好格式，提供2000年6月至今、分辨率为0.1度、涵盖7天时段的地表降水估算数据与降水相态信息。该GIS产品的原始数据源为半小时级IMERG HDF5数据产品。本GIS产品为ZIP压缩包，内含双字节标签图像文件格式（TIFF）文件，并附带ESRI WorldFile元数据。这些TIFF文件包含两类数据：其一为经尺度转换的降水累积量（单位：毫米）；其二为特定网格单元内全部降水以液态或混合相（即非全固态相降水）的概率百分比。该网格覆盖全球范围，纬度区间为南纬90度至北纬90度，经度区间为西经180度至东经180度，但极地附近区域通常无法获取降水估算数据。