The IAGL Land Surface Model
Open Access
- 1 February 1997
- journal article
- Published by American Meteorological Society in Journal of Applied Meteorology and Climatology
- Vol. 36 (2) , 167-182
- https://doi.org/10.1175/1520-0450(1997)036<0167:tilsm>2.0.co;2
Abstract
A model that computes the fluxes of energy and momentum between the land surface and the atmosphere is presented. It is designed to serve as a lower boundary in a mesoscale atmospheric model and is intended to be used to study the influence of the land surface on regional atmospheric circulations and climate. The land surface model contains one vegetation layer, a soil skin layer, and four subsurface soil layers. The shortwave and longwave radiation schemes are based on the two-stream theory. Turbulent transfer is treated in a very simple manner, by considering canopy–air and ground–air exchanges separately. Plant water flow is governed by differences in water potential between the soil and the leaves. The stomatal resistance formulation uses the effective leaf area index and the leaf water potential as key variables. It is shown that the resulting transpiration scheme implicitly accounts for the influence of visible radiation, soil moisture, atmospheric saturation deficit, and leaf temperature. ... Abstract A model that computes the fluxes of energy and momentum between the land surface and the atmosphere is presented. It is designed to serve as a lower boundary in a mesoscale atmospheric model and is intended to be used to study the influence of the land surface on regional atmospheric circulations and climate. The land surface model contains one vegetation layer, a soil skin layer, and four subsurface soil layers. The shortwave and longwave radiation schemes are based on the two-stream theory. Turbulent transfer is treated in a very simple manner, by considering canopy–air and ground–air exchanges separately. Plant water flow is governed by differences in water potential between the soil and the leaves. The stomatal resistance formulation uses the effective leaf area index and the leaf water potential as key variables. It is shown that the resulting transpiration scheme implicitly accounts for the influence of visible radiation, soil moisture, atmospheric saturation deficit, and leaf temperature. ...Keywords
This publication has 0 references indexed in Scilit: