大气科学2012，Vol.36Issue(5)：945-958,14.DOI:10.3878/j.issn.1006-9895.2012.11155
McICA云—辐射方案在国家气候中心全球气候模式中的应用与评估
Application and Evaluation of McICA Cloud-Radiation Framework in the AGCM of the National Climate Center
摘要
Abstract
McICA, a new cloud-radiation framework that can easily define the sub-grid cloud structure, is incorporated into the National Climate Center's Global Climate Model, called BCC_AGCM 2.0.1. As random noise is inevitably introduced by the scheme, it is important to evaluate and estimate how the noise behaves and whether the modeled climate will be degraded by the noise. Results show a minor perturbation of modeled climate within McICA samples, and the modeled climate fields are impacted very little by McICA noise, with the global mean bias at the order of 0.01% compared to the reference ICA (independent column approximation) results. Good agreement between McICA and ICA results is also illustrated from zonal mean, vertical, and domain distributions of variables. So, it is highly reliable to use the McICA cloud-radiation scheme in BCC_AGCM 2.0.1 to do climate researches. Because random noises have little impact on the modeling, the modeling ability of BCCAGCM 2.0.1 still depends on its physical parameterization and dynamic framework improvements. Considering that cloud and radiation processes are separately coded in the new scheme, it is now very easy to make improvement and progress in both cloud and radiation codes themselves, which facilitates and allows more space for the further development of the model.关键词
McICA/ICA/云—辐射方案/气候模式Key words
McICA, ICA, cloud-radiation scheme, climate models分类
天文与地球科学引用本文复制引用
荆现文,张华..McICA云—辐射方案在国家气候中心全球气候模式中的应用与评估[J].大气科学,2012,36(5):945-958,14.基金项目
国家自然科学基金资助项目41075056,国家重点基础研究发展计划项目2011CB403405,科技部公益性行业(气象)科研专项课题GYHY201106022 （气象）
