Coupled CESM1.2 to Penn State University Ice Sheet Model and future sea level projection

The importance of employing a two-way coupled climate-ice sheet model for future sea level projection has been revealed by LOVECLIP simulation. However, it still has several limitations. LOVECLIM, the climate model used in LOVECLIP, is unsuitable for short-term simulation. Additionally, LOVECLIM with a low-resolution T21 cannot solve regional-scale changes over the Antarctic region. Therefore, we newly coupled CESM1.2 to the Penn State Ice Sheet Model (PSUIM). CESM1.2 consists of the Community Atmosphere Model (CAM) with a f09 resolution for the atmosphere and Parallel Ocean Program version 2 (POP2) with a gx1v6 resolution for the ocean. Using coupled CESM1.2-PSUIM, we projected the responses of Greenland and Antarctic ice sheets, as well as future climate and sea level rise under the Representative Concentration Pathway scenarios.