中国1km分辨率多情景多模式逐月降水量数据集（2021-2100）

数据集为中国多情景多模式逐月降水量数据，空间分辨率为0.0083333°（约1km），时间为2021年1月-2100年12月。数据为NETCDF格式。数据是根据IPCC耦合模式比较计划第六阶段（CMIP6）发布的全球>100 km气候模式数据集以及WorldClim发布的全球高分辨率气候数据集，通过Delta空间降尺度方案在中国地区降尺度生成。数据采用IPCC最新发布的SSP情景(SSP119、SSP245、SSP585),每个情景包含三个GCMs（EC-Earth3、GFDL-ESM4、MRI-ESM2-0）的气候数据，数据集包含的地理空间范围是中国主要陆地，不含南海岛礁等区域。单位为0.1mm。文件命名是GCM_SSP_pre-30s-序号.nc，30s即0.0083333°，序号从1-40，序号1表示2021.1-2022.12，依次表示年份；以EC-Earth3_ssp119_pre-30s-1.nc文件为例，表示SSP119情景下EC-Earth3气候模式的1km分辨率2021.1-2022.12逐月降水数据。欲更深入的理解数据请参阅文献引用方式下的数据作者已发表的论文。

This dataset provides monthly precipitation data across multiple scenarios and models over China, with a spatial resolution of 0.0083333° (approximately 1 km), spanning from January 2021 to December 2100. The data is stored in netCDF format. It was generated via the Delta spatial downscaling method applied over mainland China, using two input datasets: global climate model outputs with a resolution coarser than 100 km released under the IPCC Coupled Model Intercomparison Project Phase 6 (CMIP6), and the global high-resolution climate dataset published by WorldClim. The dataset employs the latest IPCC-released SSP scenarios, including SSP119, SSP245, and SSP585. Each scenario incorporates climate data from three GCMs: EC-Earth3, GFDL-ESM4, and MRI-ESM2-0. The geographical coverage of the dataset is the main land area of China, excluding regions such as the South China Sea islands and reefs. The unit of the precipitation data is 0.1 mm. The file naming convention follows the pattern "GCM_SSP_pre-30s-serial_number.nc", where "30s" corresponds to 0.0083333°, and the serial number ranges from 1 to 40. Serial number 1 represents the period from January 2021 to December 2022, with each subsequent serial number corresponding to a consecutive two-year time interval, up to serial number 40 which covers January 2099 to December 2100. Taking the file EC-Earth3_ssp119_pre-30s-1.nc as an example, this file denotes monthly precipitation data at 1 km resolution for the period January 2021 to December 2022 under the SSP119 scenario using the EC-Earth3 climate model. For a more in-depth understanding of this dataset, please refer to the published papers of the data authors in the cited literature.

搜集汇总

背景与挑战

背景概述

该数据集提供了中国2021年至2100年逐月降水量预测数据，空间分辨率高达约1公里，覆盖中国主要陆地地区。数据基于IPCC CMIP6全球气候模式和WorldClim高分辨率数据集，通过Delta空间降尺度方法生成，包含SSP119、SSP245和SSP585三种共享社会经济路径情景，每种情景整合了EC-Earth3、GFDL-ESM4和MRI-ESM2-0三个全球气候模式的输出，以NETCDF格式存储，单位为0.1毫米，旨在支持高精度气候影响评估和长期水文研究。