NCAR CESM2 model output prepared for CMIP6 DAMIP hist-aer

Coupled Model Intercomparison Project Phase 6 (CMIP6) datasets: These data include all datasets published for 'CMIP6.DAMIP.NCAR.CESM2.hist-aer' 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 climate model, released in 2018, includes the following components:
aerosol: MAM4 (same grid as atmos), atmos: CAM6 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 32 levels; top level 2.25 mb), atmosChem: MAM4 (same grid as atmos), land: CLM5 (same grid as atmos), landIce: CISM2.1, ocean: POP2 (320x384 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.

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.

耦合模式比较计划第六阶段（Coupled Model Intercomparison Project Phase 6, CMIP6）数据集：本数据集涵盖所有以`mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version`为完整数据参考语法模板发布的`CMIP6.DAMIP.NCAR.CESM2.hist-aer`相关数据集。

CESM2气候模型于2018年正式发布，其组成模块如下：
气溶胶模块（aerosol）：采用MAM4方案，与大气模块共享相同网格；
大气模块（atmos）：采用CAM6方案，网格为0.9°×1.25°有限体积网格，包含288×192个经纬度格点，共32层，顶层气压为2.25毫巴；
大气化学模块（atmosChem）：采用MAM4方案，与大气模块共享相同网格；
陆面模块（land）：采用CLM5方案，与大气模块共享相同网格；
陆冰模块（landIce）：采用CISM2.1方案；
海洋模块（ocean）：采用POP2方案，网格为320×384个经纬度格点，共60层，表层网格单元水深范围为0~10米；
海洋生物地球化学模块（ocnBgchem）：采用MARBL方案，与海洋模块共享相同网格；
海冰模块（seaIce）：采用CICE5.1方案，与海洋模块共享相同网格。

该模型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运行，实验室地址为美国科罗拉多州博尔德市Table Mesa大道1850号，邮编80305。各模块的原始名义分辨率如下：气溶胶模块：100公里，大气模块：100公里，大气化学模块：100公里，陆面模块：100公里，陆冰模块：5公里，海洋模块：100公里，海洋生物地球化学模块：100公里，海冰模块：100公里。

项目说明：本数据集作为国际协同耦合模式比较计划第六阶段（CMIP6；详见《地球系统模型发展》特刊：http://www.geosci-model-dev.net/special_issue590.html）的产出成果之一，其模拟数据可为解答基础科学问题的气候研究提供支撑，同时也作为政府间气候变化专门委员会第六次评估报告（IPCC-AR6）作者团队的参考资源。

CMIP6由世界气候研究计划（World Climate Research Programme, WCRP）下属的耦合模式工作组（Working Group on Coupled Modelling, WGCM）牵头协调。本阶段项目延续了此前由气候模式诊断与比较计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）主导开展的多轮耦合模式比较工作，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）等众多相关协作活动完成落地。原始数据托管于联邦数据节点集群并进行部分复制，IPCC所依赖的多数数据集将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 DDC）进行长期归档保存。

该项目汇聚了全球约120个全球气候模式与45家左右的科研机构及组织。项目官方网站：https://pcmdi.llnl.gov/CMIP6。

搜集汇总

背景与挑战

背景概述

该数据集是CMIP6项目中NCAR使用CESM2气候模型生成的历史气溶胶强迫实验数据，包含多组件模拟结果，旨在支持气候研究和IPCC-AR6。