CLM: Ecosystem Dynamics
Natural ecosystem processes such as plant establishment and competition for light are represented in CLM as an extension to the biogeochemistry model. With these processes the CLM becomes a Dynamic Global Vegetation Model (DGVM), which can simulate changes in plant biogeography in response to environmental change.
The Community Earth System Model (CESM) is a fully-coupled, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.
CESM is sponsored by the National Science Foundation (NSF) and the U.S. Department of Energy (DOE). Administration of the CESM is maintained by the Climate and Global Dynamics Laboratory (CGD) at the National Center for Atmospheric Research (NCAR).