The CAMS Climate System Model and a Basic Evaluation of Its Climatology and Climate Variability Simulation

• DOI: 10.1007/s13351-018-8058-x
• Publication Date: 2018-12-29T03:08:01Z
• Authors: Xinyao Rong; Jian Li; Haoming Chen; Yufei Xin; Jingzhi Su; Lijuan Hua; Tianjun Zhou; Yanjun Qi; Zhengqiu Zhang; Guo Zhang; Jianduo Li
• Keywords: Intertropical Convergence Zone; Madden–Julian oscillation

A new coupled climate system model (CSM) has been developed at the Chinese Academy of Meteorological Sciences (CAMS) by employing several state-of-the-art component models. The CAMS-CSM consists modified atmospheric [ECmwf-HAMburg (ECHAM5)], ocean [Modular Ocean Model (MOM4)], sea ice [Sea Ice Simulator (SIS)], and land surface [Common Land (CoLM)]. detailed description is presented both pre-industrial "historical" simulations are preliminarily evaluated in this study. can reproduce climatological mean states seasonal cycles major quantities, including temperature, precipitation, extent, equatorial thermocline. variability modes also reasonably captured CAMS-CSM, such as Madden–Julian Oscillation (MJO), El Niño–Southern (ENSO), East Asian Summer Monsoon (EASM), Pacific Decadal (PDO). shows a promising ability to simulate EASM ENSO–EASM relationship. Some biases still exist, false double-intertropical convergence zone (ITCZ) annual precipitation field, overestimated ENSO amplitude, weakened Bjerknes feedback associated with ENSO; thus needs further improvements.