Geoscience Reference
In-Depth Information
— Further research is justified in the area of precipitation recycling, but
with focus on achieving greater realism and accuracy when modeling
surface evaporation and, in particular, the atmospheric mechanisms
involved in releasing precipitation.
— To give improved understanding and modeling of the soil moisture
feedback mechanism, research that exploits the emerging capability to
make area-average soil moisture measurement techniques is a priority.
— Research is required to fully validate recent interactive vegetation
models, perhaps using remote sensing data.
— Further research is needed to provide adequate representation of the
area-average behavior of heterogeneous frozen precipitation cover
because modeling its influence on meteorological feedbacks and
hydrological flows remains elusive.
— Research is needed to resolve uncertainty in the nature of, and to
reduce the numerical variability in the magnitude of, the predicted
changes associated with large-scale changes in land cover.
— Investigation is required to assess the importance of mesoscale circula-
tions generated in response to land cover heterogeneity relative to those
generated in response to topography and soil moisture heterogeneity,
and mechanisms sought to include their parameterization in GCMs.
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