CAS CAS-ESM2.0 model output prepared for CMIP6 CMIP

Coupled Model Intercomparison Project Phase 6 (CMIP6) datasets: These data include all datasets published for 'CMIP6.CMIP.CAS.CAS-ESM2-0' 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 CAS-ESM 2.0 (Chinese Academy of Sciences Earth System Model version 2.0) climate model, released in 2019, includes the following components:
aerosol: IAP AACM, atmos: IAP AGCM 5.0 (Finite difference dynamical core; 256 x 128 longitude/latitude; 35 levels; top level 2.2 hPa), atmosChem: IAP AACM, land: CoLM, ocean: LICOM2.0 (LICOM2.0, primarily 1deg; 362 x 196 longitude/latitude; 30 levels; top grid cell 0-10 m), ocnBgchem: IAP OBGCM, seaIce: CICE4.
The model was run by the Chinese Academy of Sciences, Beijing 100029, China (CAS) in native nominal resolutions: aerosol: 100 km, atmos: 100 km, atmosChem: 100 km, land: 100 km, ocean: 100 km, ocnBgchem: 100 km, seaIce: 100 km.

Project: 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. - Project website: https://pcmdi.llnl.gov/CMIP6.

耦合模型比对项目第六阶段（Coupled Model Intercomparison Project Phase 6，CMIP6）数据集：本数据集涵盖所有遵循`mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version`完整数据引用语法模板发布的`CMIP6.CMIP.CAS.CAS-ESM2-0`相关数据集。

2019年发布的CAS-ESM 2.0（中国科学院地球系统模型第2版，Chinese Academy of Sciences Earth System Model version 2.0）气候模型包含以下组分：气溶胶模块采用IAP AACM，大气模块采用IAP AGCM 5.0（有限差分动力核心；经纬度网格分辨率为256×128；共35层，顶层气压为2.2 hPa），大气化学模块采用IAP AACM，陆面模块采用CoLM，海洋模块采用LICOM2.0（LICOM2.0，主分辨率约1°；经纬度网格为362×196；共30层，顶层网格水深范围为0~10 m），海洋生物地球化学模块采用IAP OBGCM，海冰模块采用CICE4。该模型由位于中国北京100029的中国科学院（Chinese Academy of Sciences，CAS）以原生标称分辨率运行：各组分分辨率分别为气溶胶、大气、大气化学、陆面、海洋、海洋生物地球化学、海冰均为100 km。

本数据集作为国际协调推进的耦合模型比对项目第六阶段（CMIP6；详见《Geoscientific Model Development（GMD）》特刊：http://www.geosci-model-dev.net/special_issue590.html）的产出成果，其模拟数据可为解答基础科学问题的气候研究提供支撑，同时也可供政府间气候变化专门委员会（Intergovernmental Panel on Climate Change，IPCC）第六次评估报告（AR6）的撰稿人使用。

CMIP6是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）协调实施的项目。第六阶段延续了此前由气候模型诊断与比对计划（Program for Climate Model Diagnosis and Intercomparison，PCMDI）主导开展的多轮项目，依托地球系统网格联盟（Earth System Grid Federation，ESGF）与环境数据分析中心（Centre for Environmental Data Analysis，CEDA）及众多相关协作活动完成部署。原始数据存储于联邦数据节点集群并实现部分镜像，IPCC所依赖的绝大多数数据将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）进行长期归档保存。

该项目汇聚了全球约120个全球气候模型与近45家科研机构及组织的模拟成果。——项目官网：https://pcmdi.llnl.gov/CMIP6。