G2DC-PL+ A gridded 2 km daily climate dataset for the union of Polish territory and the Vistula and Odra basins

The G2DC-PL+ is a 2 km gridded daily climate dataset for the union of Polish territory and the Vistula and Odra basins, constructed with the purpose of using it as forcing data for various kinds of environmental models. It is an update and extension of the CPLFD-GDPT5 dataset (doi: 10.4121/uuid:e939aec0-bdd1-440f-bd1e-c49ff10d0a07). It includes five variables: precipitation, minimum temperature, maximum temperature, relative humidity and wind speed. Interpolation was performed using geostatistical techniques such as kriging with external drift, universal kriging and indicator kriging. Raw input data (daily station-based time series) were acquired from various providers: IMGW-PIB (area of Poland), ECA&D and NOAA-NCDC (neighbouring countries). Data are available at three temporal aggregations (daily, monthly and annual). Nine NetCDF files, each for the period 1951-2019, are made available.

G2DC-PL+是一套空间分辨率为2千米的网格化逐日气候数据集，覆盖波兰领土及维斯瓦河（Vistula）、奥得河（Odra）流域的联合区域，其构建目的是作为各类环境模型的外强迫数据。该数据集是CPLFD-GDPT5数据集的更新与扩展版本，对应的数字对象标识符（DOI）为10.4121/uuid:e939aec0-bdd1-440f-bd1e-c49ff10d0a07。该数据集包含五个变量：降水量、最低气温、最高气温、相对湿度与风速。插值处理采用了带外部漂移的克里金法、泛克里金法及指示克里金法等地质统计技术。原始输入数据为逐日台站时间序列，来源于多个提供商：IMGW-PIB（覆盖波兰区域）、ECA&D以及NOAA-NCDC（覆盖周边国家区域）。该数据集提供三种时间聚合方式：逐日、逐月与逐年。共提供9个NetCDF（Network Common Data Form）文件，每个文件对应1951-2019年的时段。