| Land cover is a first
order component of macroscale hydrologic models. Its status and dynamics
have a direct feedback on the energy and water systems by determining the
boundary conditions of the exchange of momentum, energy and mass between
the atmosphere and the land. Other landscape variables, for example, soils
and topography, are also important for determining surface and subsurface
water flow and solar radiation loading, among others.
Proper land surface characterization is thus crucial for land parameterization schemes, especially within the context of water resouce management. For our modeling efforts in the Mississippi basin, we plan to use a combination of remotely-sensed and ancillary data for capturing both the static and dynamic features of the landscape. Click here to see maps of fractional vegetation cover. |
Ancillary landscape data are an important component of hydrological
modeling. The maps above and below were derived from the State Soil Geographic
Data base - STATSGO. The top image shows soil hydraulic conductivity at
saruration and the bottom gives soil water content at saturation. Each
are averaged for a soil layer from 0-30 cm. |
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Synopsis | Overview and Objectives | Land
Surface Hydrology Model
Remote Sensing | Land
Surface Characterizations
