IPCC DDC: THU CIESM 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.THU.CIESM.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 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：耦合模式比较计划第六阶段（Coupled Model Intercomparison Project Phase 6, CMIP6）数据集——这些数据系作为国际协调推进的耦合模式比较计划第六阶段（CMIP6；另见《Geoscientific Model Development》特刊：http://www.geosci-model-dev.net/special_issue590.html）的组成部分生成。该模拟数据可为解答核心科学问题的气候研究提供支撑基础，同时为政府间气候变化专门委员会第六次评估报告（IPCC-AR6）的撰稿作者提供数据资源。CMIP6由耦合模式工作组（Working Group on Coupled Modelling, WGCM）作为世界气候研究计划（World Climate Research Programme, WCRP）的下设项目协调开展。第六阶段继承了此前由气候模式诊断与比较计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）主导实施的前序阶段工作，并依托地球系统网格联合会（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项目落地。原始数据托管于联邦化数据节点集群并实现部分副本存储，IPCC所依赖的绝大多数数据已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）开展长期归档保存。本项目涵盖全球约120个全球气候模式及45家科研机构与组织的模拟试验。

数据集概述：本数据集包含IPCC AR6第一工作组作者所使用的原始ESGF发布数据集子集，对应标识为`CMIP6.ScenarioMIP.THU.CIESM.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`。该社区集成地球系统模式（Community Integrated Earth System Model）于2017年正式发布，包含以下组成模块：气溶胶模块（MAM4）、大气模块（CIESM-AM，采用FV/FD有限体积/有限差分格式，经纬向分辨率为288×192，共30个垂直层，顶层气压为2.255 hPa）、大气化学模块（trop_mam4）、陆面模块（CIESM-LM，基于改进版CLM4.5）、海洋模块（CIESM-OM，采用FD有限差分格式、SCCGrid位移极点方案，经纬向分辨率为720×560，共46个垂直层，顶层网格深度范围为0~6 m）、海冰模块（CICE4）。该模式由中国北京100084的清华大学地球系统科学系（THU）以原始标称分辨率运行：气溶胶模块分辨率为100 km，大气模块为100 km，大气化学模块为100 km，陆面模块为100 km，海洋模块为50 km，海冰模块为50 km。