The hydrologic cycle over land includes interception of water by plant
foliage and wood, throughfall and stemflow, infiltration, runoff, soil water, and
These are directly linked to the biogeophysics and also affect temperature, precipitation,
Total runoff (surface and sub-surface runoff) are routed downstream to oceans
using a river routing model.
A river transport model (RTM) is synchronously coupled to the Community Land Model (CLM) for hydrological
applications as well as for improved land-ocean-sea ice-atmosphere coupling in
the Community Climate System Model (CCSM).