Coupled Model Intercomparison Project

Under the World Climate Research Programme (WCRP) the Working Group on Coupled Modelling (WGCM) established the Coupled Model Intercomparison Project (CMIP) as a standard experimental protocol for studying the output of coupled atmosphere-ocean general circulation models (AOGCMs). CMIP provides a community-based infrastructure in support of climate model diagnosis, validation, intercomparison, documentation and data access. This framework enables a diverse community of scientists to analyze GCMs in a systematic fashion, a process which serves to facilitate model improvement. Virtually the entire international climate modeling community has participated in this project since its inception in 1995. The Program for Climate Model Diagnosis and Intercomparison (PCMDI) archives much of the CMIP data and provides other support for CMIP. We are now beginning the process towards the IPCC Fifth Assessment Report and with it the CMIP5 intercomparison activity. The CMIP5 (CMIP Phase 5) experiment design has been finalized with the following suites of experiments: I Decadal Hindcasts and Predictions simulations, II "long-term" simulations, III "atmosphere-only" (prescribed SST) simulations for especially computationally-demanding models. The new ESGF peer-to-peer (P2P) enterprise system (http://pcmdi9.llnl.gov) is now the official site for CMIP5 model output. The old gateway (http://pcmdi3.llnl.gov) is deprecated and now shut down permanently.

在《世界气候研究计划》（WCRP）的框架下，耦合建模工作组（WGCM）建立了耦合模型互评项目（CMIP），作为研究耦合大气-海洋一般环流模型（AOGCM）输出的标准实验协议。CMIP为气候模型的诊断、验证、互评、文档编制和数据访问提供了一个基于社区的基础设施。该框架使得众多科学家能够以系统化的方式分析全球环流模型（GCM），这一过程有助于促进模型改进。自1995年项目启动以来，几乎整个国际气候建模界都参与了该项目。气候模型诊断与互评计划（PCMDI）存档了CMIP的大部分数据，并为CMIP提供了其他支持。目前，我们正开始着手于《第五次评估报告》（IPCC AR5）及与之相关的CMIP5互评活动。CMIP5（CMIP第五阶段）的实验设计已最终确定，包括以下实验套件：I 十年回溯和预测模拟，II '长期'模拟，III '仅大气'（指定SST）模拟，适用于特别计算密集型的模型。新的环境共享网格框架（ESGF）对等（P2P）企业系统（http://pcmdi9.llnl.gov）现在是CMIP5模型输出的官方网站。旧的网关（http://pcmdi3.llnl.gov）已被弃用，并已永久关闭。