Welcome to AMP

 

J. Richter has begun working on improving the parameterization of moist convection in the CAM. This work has been focused on the implementation of a parameterization of convective momentum transport. This parameterization improves several of the long-standing model biases, including features in the surface wind field such as (a) the easterly bias in the tropics, b) the westerly bias in the north-eastern pacific, c) and the westerly bias in the 60S jet. Additionally, as a result of added convective momentum transport, the representation of tropical precipitation in CAM is improved in the Indian Ocean and the equatorial Western Pacific. In connection with this work, Richter has begun a collaboration with Chris Bretherton (University of Washington) to evaluate parameterizations of convective momentum transport in the single column CAM (SCAM) against cloud resolving model (CRM) simulations. Current comparisons are being carried out with the Colorado State University’s CRM and will transition to the WRF in the next fiscal year.