ROMS in CCSM

The Community Climate System Model (CCSM) is the main community climate model in the US. The various components are either developed or maintained at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado. The CCSM is one of the models that consistently participates in the work leading to the Intergovernmental Panel on Climate Change (IPCC) reports. It consists of a coupler and models for each of the atmosphere, ocean, ice, and land, all on global grids. One of the capabilities envisioned for the next generation of climate models is the ability to selectively increase resolution in target areas. This is desired both as a way of studying regional climates as well as a means of improving climate model biases. Examples in the ocean are upwelling regions, narrow straits, etc. As a consequence, efforts are underway to couple both ROMS and WRF into CCSM. In this presentation, we describe the ROMS coupling to CCSM and give a status report on this effort.