[A-AS08] Processes of the Moist Atmosphere Across Scales

[AAS08-P07] Verification of the Madden-Julian Oscillation and ocean surface response in the atmosphere model NICAM coupled with the ocean model COCO

*Rui Tanaka¹, Hiroaki Miura¹, Chihiro Kodama², Ryusuke Masunaga² (1.The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology)

A high-resolution atmosphere-ocean coupled model, so called NICOCO, has been developed by combining the global non-hydrostatic atmospheric model NICAM with the high-resolution ocean general circulation model COCO. However, the reliability of NICOCO has not been verified and needs to be validated prior to specific applications. In this study, we choose the relationship between the Madden-Julian Oscillation (MJO) and the ocean surface layer as a target of the verification of NICOCO in the tropics. It has been pointed out that although the MJO may be primarily an atmospheric phenomenon, there is a possibility that it interacts with the ocean surface layer within a diurnal timescale and this interaction impacts the behavior of the MJO. Detailed analysis is still ongoing, and we will present results at the conference.