CHASE-PL Forcing Data: Gridded Daily Precipitation & Temperature Dataset 5 km (CPLFD-GDPT5)

Gridded Daily Precipitation & Temperature Dataset at 5 km resolution for the area of Poland enlarged by the Vistula and Odra basins, for the time period 1951-2013, developed within the CHASE-PL project This high-resolution (5 km) precipitation and temperature dataset CPLFD-GDPT5 was constructed with the purpose of using it for regional- to local-scale earth system modelling, in particular for hydrological modelling and as a reference dataset for climate change impact assessments. A number of geostatistical techniques (kriging with elevation as external drift for temperature; combination of universal and indicator kriging for precipitation) were applied to construct it. Raw input data (daily station-based time series) were acquired from various providers: IMGW-PIB, DWD, ECAD, NOAA-NCDC. Three variables (precipitation, minimum and maximum temperature) are available at three temporal aggregations (daily, monthly and annual). Nine NetCDF files, each for the period 1951-2013, are made available.

本数据集系CHASE-PL项目研发的格点化日降水与气温数据集，空间分辨率为5千米，覆盖范围为经维斯瓦河（Vistula）与奥得河（Odra）流域扩展后的波兰区域，时间跨度为1951年至2013年。该高分辨率（5千米）降水与气温数据集CPLFD-GDPT5，旨在服务于区域至局地尺度的地球系统模拟，尤其适用于水文模拟，并可作为气候变化影响评估的参考数据集。本次数据集构建采用了多种地统计技术：气温要素采用以高程作为外部漂移项的克里金插值（Kriging），降水要素则采用泛克里金与指示克里金的组合方法。原始输入数据为逐日台站观测时间序列，来源于多家机构：IMGW-PIB、DWD、ECAD、NOAA-NCDC。数据集包含降水、最低气温与最高气温共3个变量，均支持日、月、年三种时间聚合尺度。本次共提供9个NetCDF格式文件，每个文件对应1951年至2013年的完整时段。