IPCC DDC: NCAR CESM2-WACCM model output prepared for CMIP6 ScenarioMIP ssp370

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.NCAR.CESM2-WACCM.ssp370' 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 CESM2-WACCM climate model, released in 2018, includes the following components: aerosol: MAM4 (same grid as atmos), atmos: WACCM6 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-06 mb), atmosChem: MAM4 (same grid as atmos), land: CLM5 (same grid as atmos), landIce: CISM2.1, ocean: POP2 (320 x 384 longitude/latitude; 60 levels; top grid cell 0-10 m), ocnBgchem: MARBL (same grid as ocean), seaIce: CICE5.1 (same grid as ocean). The model was run by the National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, 1850 Table Mesa Drive, Boulder, CO 80305, USA (NCAR) in native nominal resolutions: aerosol: 100 km, atmos: 100 km, atmosChem: 100 km, land: 100 km, landIce: 5 km, ocean: 100 km, ocnBgchem: 100 km, seaIce: 100 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调开展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（Intergovernmental Panel on Climate Change，IPCC）第六次评估报告（Sixth Assessment Report，AR6，常简称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）统筹协调。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，并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）及众多相关配套工作完成项目落地。原始数据托管于分布式数据节点联合体并实现部分复制，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）运营的IPCC数据分发中心（IPCC Data Distribution Centre，IPCC DDC）进行长期归档保存。本项目涵盖了全球约120个全球气候模式与近45家科研机构及组织提交的模拟试验数据。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发布数据集的子集，对应试验标识为'CMIP6.ScenarioMIP.NCAR.CESM2-WACCM.ssp370'，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。发布于2018年的CESM2-WACCM气候模式包含以下组成模块：气溶胶模块：MAM4（与大气模块采用相同网格）；大气模块：WACCM6（0.9°×1.25°有限体积网格；288×192经纬度格点；70层大气顶气压为4.5×10^-6毫巴）；大气化学模块：MAM4（与大气模块采用相同网格）；陆面模块：CLM5（与大气模块采用相同网格）；陆冰模块：CISM2.1；海洋模块：POP2（320×384经纬度格点；60层；表层网格单元水深范围0~10米）；海洋生物地球化学模块：MARBL（与海洋模块采用相同网格）；海冰模块：CICE5.1（与海洋模块采用相同网格）。该模式由美国国家大气研究中心（National Center for Atmospheric Research，NCAR）气候与全球动力学实验室（地址：美国科罗拉多州博尔德市Table Mesa大道1850号，邮编80305）以标称原生分辨率运行，各模块分辨率如下：气溶胶：100千米；大气：100千米；大气化学：100千米；陆面：100千米；陆冰：5千米；海洋：100千米；海洋生物地球化学：100千米；海冰：100千米。