A Land Surface Model (LSM Version 1.0) for Ecological, Hydrological, and Atmospheric Studies: Technical Description and User's Guide

This technical note describes version 1 of this LSM land surface model. In this model, land surface processes are described in terms of biophysical fluxes (latent heat, sensible heat, momentum, reflected solar radiation, emitted longwave radiation) and biogeochemical fluxes (CO?) that depend on the ecological and hydrologic state of the land. Consequently, ecological and hydrologic sub-models are needed to simulate temporal changes in terrestrial biomass and water. Component processes and their interactions are illustrated in Figure 1. Scientific justification for many of the parameterizations used in this model can be found in Bonan (1994), Bonan (1995a) [CO ? fluxes], Bonan (1995b) [lakes], and Bonan (1996) [infiltration].