U.S. Department of Energy Office of Biological and Environmental Research

BER Research Highlights


ARM Parameterization Improves Simulation of Precipitation
Published: April 18, 2005
Posted: April 29, 2005

The addition of a new ARM-developed parameterization on convection into the Community Atmosphere Model (known as CAM3) has resulted in a remarkable improvement in the simulation of climate and its variability on intra-seasonal timescales in the Tropics. In particular, several long-standing model biases are eliminated. The new parameterization improved simulations for precipitation in both winter and boreal summer seasons and more accurately simulates the annual cycle of the monsoon precipitation. The new convection parameterization also improves the simulation of tropical intra-seasonal variability.

Reference: Guang Zhang: From ARM Observations to GCM Improvement: An Example of Convection Parameterization Development for the NCAR Model CAM3 2005 ARM Science Team Meeting presentation

Contact: Wanda R. Ferrell, SC-23.3, (301) 903-0043
Topic Areas:

  • Research Area: Earth and Environmental Systems Modeling
  • Research Area: Atmospheric System Research

Division: SC-23.1 Climate and Environmental Sciences Division, BER
      (formerly SC-23.3 Climate Change Research Division, OBER)

 

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