IPCC DDC: CNRM-CERFACS CNRM-CM6-1-HR model output prepared for CMIP6 ScenarioMIP ssp126

Project: Coupled Model Intercomparison Project Phase 6 (CMIP6) datasets - These data have been generated as part of the internationally-coordinated Coupled Model Intercomparison Project Phase 6 (CMIP6; see also GMD Special Issue: http://www.geosci-model-dev.net/special_issue590.html). The simulation data provides a basis for climate research designed to answer fundamental science questions and serves as resource for authors of the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC-AR6). CMIP6 is a project coordinated by the Working Group on Coupled Modelling (WGCM) as part of the World Climate Research Programme (WCRP). Phase 6 builds on previous phases executed under the leadership of the Program for Climate Model Diagnosis and Intercomparison (PCMDI) and relies on the Earth System Grid Federation (ESGF) and the Centre for Environmental Data Analysis (CEDA) along with numerous related activities for implementation. The original data is hosted and partially replicated on a federated collection of data nodes, and most of the data relied on by the IPCC is being archived for long-term preservation at the IPCC Data Distribution Centre (IPCC DDC) hosted by the German Climate Computing Center (DKRZ). The project includes simulations from about 120 global climate models and around 45 institutions and organizations worldwide. Summary: These data include the subset used by IPCC AR6 WGI authors of the datasets originally published in ESGF for 'CMIP6.ScenarioMIP.CNRM-CERFACS.CNRM-CM6-1-HR.ssp126' with the full Data Reference Syntax following the template 'mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version'. The CNRM-CM6-1-HR climate model, released in 2017, includes the following components: aerosol: prescribed monthly fields computed by TACTIC_v2 scheme, atmos: Arpege 6.3 (T359; Gaussian Reduced with 181724 grid points in total distributed over 360 latitude circles (with 720 grid points per latitude circle between 32.2degN and 32.2degS reducing to 18 grid points per latitude circle at 89.6degN and 89.6degS); 91 levels; top level 78.4 km), atmosChem: OZL_v2, land: Surfex 8.0c, ocean: Nemo 3.6 (eORCA025, tripolar primarily 1/4deg; 1442 x 1050 longitude/latitude; 75 levels; top grid cell 0-1 m), seaIce: Gelato 6.1. The model was run by the CNRM (Centre National de Recherches Meteorologiques, Toulouse 31057, France), CERFACS (Centre Europeen de Recherche et de Formation Avancee en Calcul Scientifique, Toulouse 31057, France) (CNRM-CERFACS) in native nominal resolutions: aerosol: 100 km, atmos: 100 km, atmosChem: 100 km, land: 100 km, ocean: 25 km, seaIce: 25 km.

项目：耦合模型比对项目第六阶段（Coupled Model Intercomparison Project Phase 6, CMIP6）数据集——本数据集作为国际协同推进的耦合模型比对项目第六阶段（CMIP6；详见《地球科学模型开发》特刊：http://www.geosci-model-dev.net/special_issue590.html）的产出成果生成。该模拟数据为旨在解答核心科学问题的气候研究提供了基础支撑，同时也为政府间气候变化专门委员会第六次评估报告（IPCC-AR6）的撰稿人提供了数据资源。CMIP6由世界气候研究计划（World Climate Research Programme, WCRP）下属的耦合建模工作组（Working Group on Coupled Modelling, WGCM）牵头协调。本阶段项目承接了此前由气候模型诊断与比对计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）主导开展的多轮耦合模型比对工作，依托地球系统网格联盟（Earth System Grid Federation, ESGF）、环境数据分析中心（Centre for Environmental Data Analysis, CEDA）及众多相关配套活动完成落地实施。原始数据存储于分布式联邦数据节点集群并支持部分复制，IPCC报告所依赖的绝大多数数据已由德国气候计算中心（Deutsches Klimarechenzentrum, DKRZ）托管的IPCC数据分发中心（IPCC Data Distribution Centre, IPCC DDC）完成长期归档保存。本项目汇聚了全球约120个全球气候模式与45家科研机构及组织的模拟成果。

数据集概况：本数据集包含IPCC AR6第一工作组（Working Group I, WGI）撰稿人所使用的原始ESGF发布数据集子集，对应标识为'CMIP6.ScenarioMIP.CNRM-CERFACS.CNRM-CM6-1-HR.ssp126'，其完整数据引用语法遵循模板：`mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version`。该CNRM-CM6-1-HR气候模式于2017年发布，包含以下组成模块：
- 气溶胶模块：采用TACTIC_v2方案计算的预设逐月场数据；
- 大气模块：采用Arpege 6.3模式（分辨率为T359；高斯降格网格，总计181724个网格点，其中32.2°N至32.2°S纬度圈包含720个网格点，向89.6°N与89.6°S两极逐步缩减至每个纬度圈18个网格点；共计91层垂直分层；顶层高度为78.4 km）；
- 大气化学模块：采用OZL_v2方案；
- 陆面模块：采用Surfex 8.0c；
- 海洋模块：采用Nemo 3.6模式（eORCA025网格，三级极点布局，主分辨率约1/4°；经纬度网格尺寸为1442×1050；75层垂直分层；顶层网格单元深度范围0~1 m）；
- 海冰模块：采用Gelato 6.1。

该模式由法国国家气象研究中心（Centre National de Recherches Meteorologiques, CNRM）与欧洲科学计算高级研究与培训中心（Centre Europeen de Recherche et de Formation Avancee en Calcul Scientifique, CERFACS）联合运行（合称CNRM-CERFACS），采用原生标称分辨率：气溶胶模块：100 km，大气模块：100 km，大气化学模块：100 km，陆面模块：100 km，海洋模块：25 km，海冰模块：25 km。

搜集汇总

背景与挑战

背景概述

该数据集是CNRM-CM6-1-HR高分辨率气候模型在CMIP6 ScenarioMIP的ssp126（低排放）情景下的模拟输出，由CNRM-CERFACS机构运行，用于IPCC第六次评估报告（AR6）的科学分析。数据覆盖全球范围，时间跨度为2015年至2100年，包含大气、海洋、海冰等多个组件，以NetCDF格式提供，并已通过严格的质量控制。