IPCC DDC: THU CIESM model output prepared for CMIP6 ScenarioMIP

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.THU.CIESM' 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 Community Integrated Earth System Model climate model, released in 2017, includes the following components: aerosol: MAM4, atmos: CIESM-AM (FV/FD; 288 x 192 longitude/latitude; 30 levels; top level 2.255 hPa), atmosChem: trop_mam4, land: CIESM-LM (modified CLM4.5), ocean: CIESM-OM (FD, SCCGrid Displaced Pole; 720 x 560 longitude/latitude; 46 levels; top grid cell 0-6 m), seaIce: CICE4. The model was run by the Department of Earth System Science, Tsinghua University, Beijing 100084, China (THU) in native nominal resolutions: aerosol: 100 km, atmos: 100 km, atmosChem: 100 km, land: 100 km, ocean: 50 km, seaIce: 50 km.

项目：耦合模型比较计划第六阶段（Coupled Model Intercomparison Project Phase 6, CMIP6）数据集——本数据集作为国际协调开展的耦合模型比较计划第六阶段（CMIP6；详见《Geoscientific Model Development》特刊：http://www.geosci-model-dev.net/special_issue590.html）的产出成果，其模拟数据为解答基础科学问题的气候研究提供支撑，同时为政府间气候变化专门委员会第六次评估报告（Intergovernmental Panel on Climate Change Sixth Assessment Report, IPCC-AR6）的作者提供数据资源。CMIP6由耦合建模工作组（Working Group on Coupled Modelling, WGCM）作为世界气候研究计划（World Climate Research Programme, WCRP）的子项目协调推进。第六阶段延续了此前由气候模型诊断与比较计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）主导开展的前期项目，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实施。原始数据托管并部分复制于联合数据节点集群，IPCC所依赖的大部分数据将由德国气候计算中心（German Climate Computing Center, 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。本项目涵盖全球约120个全球气候模式及45余家科研机构与组织的模拟试验数据。

摘要：本数据集包含IPCC AR6第一工作组作者所使用的、最初发布于ESGF的"CMIP6.ScenarioMIP.THU.CIESM"数据集子集，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"。该社区集成地球系统模式（Community Integrated Earth System Model, CIESM）于2017年正式发布，包含以下组成模块：气溶胶模块为MAM4，大气模块为CIESM-AM（有限差分/有限体积格式，经纬度分辨率288×192，共30层，顶层气压为2.255 hPa），大气化学模块为trop_mam4，陆面模块为CIESM-LM（改进版CLM4.5），海洋模块为CIESM-OM（有限差分格式，采用SCCGrid极移网格，经纬度分辨率720×560，共46层，顶层网格单元深度范围0~6 m），海冰模块为CICE4。该模式由中国北京市100084清华大学地球系统科学系（THU）以原始标称分辨率运行：气溶胶、大气、大气化学及陆面模块分辨率均为100 km，海洋与海冰模块分辨率均为50 km。