Collaborative Research: Reducing tropical precipitation biases in CESM — Tests of unified parameterizations with ARM observations
- Univ. of Wisconsin, Madison, WI (United States)
- Univ. Corporation for Atmospheric Research, Boulder, CO (United States)
- National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab.
- Univ. of Colorado, Boulder, CO (United States)
In state-of-the-art climate models, each cloud type is treated using its own separate cloud parameterization and its own separate microphysics parameterization. This use of separate schemes for separate cloud regimes is undesirable because it is theoretically unfounded, it hampers interpretation of results, and it leads to the temptation to overtune parameters. In this grant, we are creating a climate model that contains a unified cloud parameterization and a unified microphysics parameterization. This model will be used to address the problems of excessive frequency of drizzle in climate models and excessively early onset of deep convection in the Tropics over land. The resulting model will be compared with ARM observations.
- Research Organization:
- University Corporation for Atmospheric Research, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0008493
- OSTI ID:
- 1324448
- Report Number(s):
- DOE-UCAR8493; 2012-331
- Country of Publication:
- United States
- Language:
- English
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