论文标题
改进了厄尔尼诺现象的模拟及其对ICM 2版中东亚西太平洋气候异常的影响
Improved simulation of El Niño and its influence on the climate anomalies of the East Asia-western North Pacific in the ICM Version 2
论文作者
论文摘要
这项研究介绍了集成气候模型（ICM）的第二版。 ICM是由大气物理学研究所季风系统研究中心开发的，该研究所改善了东亚北太平洋（EA-WNP）的短期气候预测。第二版（ICM.V2）相对于第一个版本（ICM.V1）的主要更新是大气模型从T31光谱分辨率（3.75°*3.75°）的水平分辨率改进到T63（1.875°*1.875°）。结果，显然从ICm.V1到ICM.V2改善了EA-WNP的短期气候预测的一些重要因素，包括气候SST，东亚夏季季风的降雨和循环以及ENSO的可变性和空间模式。 EA-WNP上更现实的反气旋异常和降水模式，ElNiño对ICM.V2中模拟的EA-WNP气候的影响也得到了改善。印度洋热带电容器效应和WNP局部空气交互反馈，这两种流行的机制可以解释厄尔尼诺现象对EA-WNP气候的影响，在ICM.V2中也实际上是在ICM.V2中实际复制的，相对于ICM.MM.V1而言。
This study introduces the second version of the Integrated Climate Model (ICM). ICM is developed by the Center for Monsoon System Research, Institute of Atmospheric Physics to improve the short-term climate prediction of the East Asia-western North Pacific (EA-WNP). The main update of the second version of ICM (ICM.V2) relative to the first version (ICM.V1) is the improvement of the horizontal resolution of the atmospheric model from T31 spectral resolution (3.75°*3.75°) to T63 (1.875°*1.875°). As a result, some important factors for the short-term climate prediction of the EA-WNP is apparently improved from ICM.V1 to ICM.V2, including the climatological SST, the rainfall and circulation of the East Asian summer monsoon, and the variability and spatial pattern of ENSO. The impact of El Niño on the EA-WNP climate simulated in ICM.V2 is also improved with more realistic anticyclonic anomalies and precipitation pattern over the EA-WNP. The tropical Indian ocean capacitor effect and the WNP local air-sea interaction feedback, two popular mechanisms to explain the impact of El Niño on the EA-WNP climate is also realistically reproduced in ICM.V2, much improved relative to that in ICM.V1.
