IPCC DDC: ECMWF ECMWF-IFS-LR model output prepared for CMIP6 HighResMIP control-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.ECMWF.ECMWF-IFS-LR.control-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 ECMWF-IFS-LR (50 km atmosphere and 100 km ocean) climate model, released in 2017, includes the following components: atmos: IFS (IFS CY43R1, Tco199, cubic octahedral reduced Gaussian grid equivalent to 800 x 400 longitude/latitude; 91 levels; top level 0.01 hPa), land: HTESSEL (as implemented in IFS CY43R1), ocean: NEMO3.4 (NEMO v3.4; ORCA1 tripolar grid; 362 x 292 longitude/latitude; 75 levels; top grid cell 0-1 m), seaIce: LIM2 (LIM v2; ORCA1 tripolar grid; 362 x 292 longitude/latitude). The model was run by the European Centre for Medium-Range Weather Forecasts, Reading RG2 9AX, UK (ECMWF) in native nominal resolutions: atmos: 50 km, land: 50 km, ocean: 100 km, seaIce: 100 km.

项目：耦合模型比较计划第六阶段（Coupled Model Intercomparison Project Phase 6, CMIP6）数据集——本系列数据为国际协同开展的耦合模型比较计划第六阶段（CMIP6；详见《Geoscientific Model Development》特刊：http://www.geosci-model-dev.net/special_issue590.html）所产出。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，同时可作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（AR6）作者群体的参考资源。CMIP6由世界气候研究计划（World Climate Research Programme, WCRP）下属的耦合建模工作组（Working Group on Coupled Modelling, WGCM）协调推进。第六阶段继承了此前由气候模型诊断与比较计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）主导开展的前序阶段工作，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）及众多相关配套活动完成项目落地。原始数据托管于联邦化的数据节点集群并实现部分镜像复制，IPCC所依赖的多数数据将由德国气候计算中心（German Climate Computing Center, DKRZ）运营的IPCC数据分发中心（IPCC Data Distribution Centre, IPCC DDC）进行长期归档保存。本项目涵盖全球约120个全球气候模型，以及来自全球近45家科研机构与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）作者所使用的子集数据，其原始数据最早发布于ESGF平台，对应标识为`CMIP6.HighResMIP.ECMWF.ECMWF-IFS-LR.control-1950`，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`。ECMWF-IFS-LR（大气分辨率50 km、海洋分辨率100 km）气候模型于2017年发布，其组成模块如下：大气模块：IFS（IFS CY43R1，Tco199，等效于800×400经纬度的立方八面体缩减高斯网格；共91层，顶层气压0.01 hPa）；陆面模块：HTESSEL（与IFS CY43R1中实现版本一致）；海洋模块：NEMO3.4（NEMO v3.4；ORCA1三极网格，362×292经纬度；共75层，顶层网格深度0~1 m）；海冰模块：LIM2（LIM v2；ORCA1三极网格，362×292经纬度）。该模型由英国雷丁RG2 9AX的欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts, ECMWF）以原始标称分辨率运行：大气模块50 km、陆面模块50 km、海洋模块100 km、海冰模块100 km。