Common model biases reduce CMIP5's ability to simulate the recent Pacific La Nina-like cooling

讲座简介

Most CMIP5 model simulations with historical radiative forcing do not reproduce the Pacific La Nina-like cooling over the recent decades as well as the global warming hiatus. A prevailing hypothesis is that errors in simulated internal climate variations may cause the model-observation discrepancy. However, recent studies have suggested that distinct warming in different oceans in response to external radiative forcing is crucial to driving the Pacific cooling. Here, we investigate an alternative hypothesis that common biases of CMIP5 models may lead to the models' inability. Systematic biases in both the inter-basin influence and Pacific local air-sea interactions need to be reduced for better simulations of climate changes and multi-decadal fluctuations. 

主讲人简介

罗京佳， 2001年3月获得日本东京大学物理海洋学博士学位。2001年4月-2011年10月，在日本海洋科学技术研究中心工作。2011年至今，在澳大利亚天气－气候研究中心工作。2011年3月，获日本文部省青年科学家奖。目前主要从事气候动力学、热带海气相互作用、气候模式研发及模拟和气候预测及其应用方面的研究。已发表百余篇论文，其中，有10篇论文发表于Nature, Science, PNAS, Nature Climate Change, Nature Geoscience, Nature Communications和Scientific Reports 等杂志。据google scholar 统计，文章总引用次数超过6500次。