NASA-GISS GISS-E2.1G model output prepared for CMIP6 LUMIP deforest-globe

Coupled Model Intercomparison Project Phase 6 (CMIP6) datasets: These data include all datasets published for 'CMIP6.LUMIP.NASA-GISS.GISS-E2-1-G.deforest-globe' 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 GISS-E2.1G climate model, released in 2019, includes the following components:
aerosol: Varies with physics-version (p==1 none, p==3 OMA, p==4 TOMAS, p==5 MATRIX), atmos: GISS-E2.1 (2.5x2 degree; 144 x 90 longitude/latitude; 40 levels; top level 0.1 hPa), atmosChem: Varies with physics-version (p==1 Non-interactive, p>1 GPUCCINI), land: GISS LSM, ocean: GISS Ocean (GO1, 1 degree; 360 x 180 longitude/latitude; 40 levels; top grid cell 0-10 m), seaIce: GISS SI.
The model was run by the Goddard Institute for Space Studies, New York, NY 10025, USA (NASA-GISS) in native nominal resolutions: aerosol: 250 km, atmos: 250 km, atmosChem: 250 km, land: 250 km, ocean: 100 km, seaIce: 250 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：本数据集涵盖所有针对`CMIP6.LUMIP.NASA-GISS.GISS-E2-1-G.deforest-globe`发布的数据集，其数据引用语法严格遵循模板`mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version`。

2019年发布的GISS-E2.1G气候模式包含以下组分：气溶胶模块：随物理版本配置而异（p==1 无配置，p==3 采用OMA方案，p==4 采用TOMAS方案，p==5 采用MATRIX方案）；大气模块：GISS-E2.1（分辨率2.5°×2°，经纬度网格尺寸为144×90，共40个垂直层，顶层气压为0.1 hPa）；大气化学模块：随物理版本配置而异（p==1 为非交互式模式，p>1 采用GPUCCINI方案）；陆面模块：GISS陆面模式（LSM）；海洋模块：GISS海洋模式（GO1，分辨率1°，经纬度网格尺寸为360×180，共40个垂直层，顶层网格水深范围为0~10 m）；海冰模块：GISS海冰模式（SI）。

该模式由美国纽约州10025区域的戈达德太空研究所（NASA-GISS）以原始标称分辨率运行，各组分分辨率分别为：气溶胶模块250 km，大气模块250 km，大气化学模块250 km，陆面模块250 km，海洋模块100 km，海冰模块250 km。

项目背景：本数据集作为国际协作的耦合模型比较计划第六阶段（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。该模拟数据可为解答核心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（IPCC-AR6）的撰稿人员提供数据资源。

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）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）主导的前期计划实施工作，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）及众多相关协作活动完成项目落地。原始数据存储于分布式数据节点集群中并实现部分镜像复制，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。

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