IPCC DDC: MOHC HadGEM3-GC31-HM model output prepared for CMIP6 HighResMIP hist-1950

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.HighResMIP.MOHC.HadGEM3-GC31-HM.hist-1950' 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 HadGEM3-GC3.1-N512ORCA025 climate model, released in 2016, includes the following components: aerosol: UKCA-GLOMAP-mode, atmos: MetUM-HadGEM3-GA7.1 (N512; 1024 x 768 longitude/latitude; 85 levels; top level 85 km), land: JULES-HadGEM3-GL7.1, ocean: NEMO-HadGEM3-GO6.0 (eORCA025 tripolar primarily 0.25 deg; 1440 x 1205 longitude/latitude; 75 levels; top grid cell 0-1 m), seaIce: CICE-HadGEM3-GSI8 (eORCA025 tripolar primarily 0.25 deg; 1440 x 1205 longitude/latitude). The model was run by the Met Office Hadley Centre, Fitzroy Road, Exeter, Devon, EX1 3PB, UK (MOHC) in native nominal resolutions: aerosol: 50 km, atmos: 50 km, land: 50 km, ocean: 25 km, seaIce: 25 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同推进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。该模拟数据为解答基础科学问题的气候研究提供了核心支撑，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）的作者群体提供了权威数据资源。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）主导的多轮项目实践，并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）及众多相关配套活动完成项目落地。原始数据存储于分布式联合数据节点集群并实现部分复制，IPCC所依赖的多数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。本项目涵盖了全球约120个全球气候模型与近45家科研机构及组织的模拟实验数据。

摘要：本数据集包含IPCC AR6第一工作组（WGI）作者所使用的原始数据集子集，该子集最初发布于ESGF平台，对应标识符为'CMIP6.HighResMIP.MOHC.HadGEM3-GC31-HM.hist-1950'，其完整数据参考语法遵循模板'mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version'。

2016年发布的HadGEM3-GC3.1-N512ORCA025气候模型包含以下组成模块：气溶胶模块：UKCA-GLOMAP-mode；大气模块：MetUM-HadGEM3-GA7.1（N512；经纬度分辨率1024×768，共85层，顶层高度85 km）；陆面模块：JULES-HadGEM3-GL7.1；海洋模块：NEMO-HadGEM3-GO6.0（eORCA025三极网格，基础分辨率0.25°，经纬度格点1440×1205，共75层，顶层网格深度范围0~1 m）；海冰模块：CICE-HadGEM3-GSI8（eORCA025三极网格，基础分辨率0.25°，经纬度格点1440×1205）。该模型由英国埃克塞特市菲茨罗伊路、邮编EX1 3PB的英国气象局哈德利中心（Met Office Hadley Centre，MOHC）以原始标称分辨率运行：气溶胶模块50 km，大气模块50 km，陆面模块50 km，海洋模块25 km，海冰模块25 km。

搜集汇总

背景与挑战

背景概述

该数据集是英国气象局哈德利中心提供的HadGEM3-GC31-HM高分辨率气候模型输出数据，时间跨度为1950-2014年，包含多组件模拟结果，主要用于IPCC第六次评估报告。数据具有25-50km的空间分辨率和严格的质控流程。