Downscaled precipitation and mean air temperature datasets; East-Taylor subbasin; 2008-2019; daily temporal resolution; 400 m spatial resolution

This dataset provides gridded meteorological forcing data (specifically, daily precipitation and daily mean air temperature). The dataset has been generated by downscaling the Parameter-elevation Regressions on Independent Slopes Model (PRISM) dataset from a spatial resolution of 800 m to 400 m. The time period is 2008-2019, and the mapped area is East Taylor subbasin in Upper Colorado. The data are in the form of NetCDF files, arranged by year. Compared to the PRISM dataset, the dates of the downscaled dataset are shifted backwards by one (e.g., downscaled data for May 25 corresponds to PRISM data for May 26). This temporal shifting makes the meteorological forcing correspond more closely to the prescribed date. The NetCDF format is a standard raster format that can be read using any Geographic Information System (GIS) software; plenty of modules exist in popular scripting languages (such as Python, R and Matlab) that can also be used to read NetCDF files.East_Taylor_Tavg_PRISM400 corresponds to mean air temperature.East_Taylor_Precip_PRISM400.zip corresponds to precipitation.The proprietary PRISM data (800 m resolution) were purchased with funding from the Watershed Function Scientific Focus Area supported by U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research under award no. DE-AC02-05CH11231.Dataset update on March 9, 2022:Uploaded new data files that are identical to the earlier files but are now in the NetCDF format, arranged by year. Earlier, the files were in the GeoTiff format, arranged by date.

本数据集提供网格化气象强迫数据，具体包含逐日降水与逐日平均气温。本数据集通过将独立斜坡参数-高程回归模型（Parameter-elevation Regressions on Independent Slopes Model，简称PRISM）数据集从800米的空间分辨率降尺度至400米生成。数据集的时间跨度为2008年至2019年，覆盖范围为科罗拉多河上游的东泰勒子流域（East Taylor subbasin）。数据以NetCDF文件格式存储，按年份分组。与原始PRISM数据集相比，降尺度后数据集的时间节点向后偏移1天（例如，降尺度后5月25日的数据对应原始PRISM数据集5月26日的数据）。该时间偏移处理可使气象强迫数据与预设日期的匹配度更高。NetCDF是一种标准栅格格式，可通过任意地理信息系统（Geographic Information System，简称GIS）软件读取；主流脚本语言（如Python、R及Matlab）中均存在大量可用于读取NetCDF文件的工具库。其中，East_Taylor_Tavg_PRISM400对应平均气温数据，East_Taylor_Precip_PRISM400.zip对应降水数据。原始800米分辨率的PRISM专有数据集由美国能源部科学办公室生物与环境研究办公室资助的流域功能科学重点区域项目采购，项目编号为DE-AC02-05CH11231。本数据集于2022年3月9日完成更新：本次上传的新数据文件与早期文件内容完全一致，但格式调整为按年份分组存储的NetCDF格式；此前的文件为按日期分组存储的GeoTIFF格式。