Breaking the Cloud Parameterization Deadlock

摘要: A key factor limiting the reliability of simulations anthropogenic climate change is inability to accurately represent various effects clouds on climate. Despite best efforts community, problem has resisted solution for several decades. The reasons this are briefly reviewed and it argued that will be many more decades before can solved through approaches cloud parameterization have been used up now. An alternative approach, called superparameterization, then outlined, in which high-resolution system-resolving models (CSRMs) place conventional parameterizations. Tests performed with Community Atmosphere Model show superparameterizations give realistic current climate, including greatly improved Madden–Julian oscillation other tropical wave disturbances. Superparameterizations increase cost simulation by a hundred ...