An Approach toward Energy Balance Simulation over Rugged Terrain

An Approach toward Energy Balance Simulation over Rugged Terrain We develop a digital computer model, based upon equilibrium temperature theory, of the magnitudes of the components of the energy balance for a mountainous topographic surface. The model includes an algorithm for calculating slope, exposure, and horizon information for every point on a digitized grid. Incoming solar and thermal radiation are then simulated for every point. At present the model is designed for clear‐sky conditions, but it could be modified for cloudy skies. Air temperature and humidity variations are specified by externally defined relations, and values for albedo and soil thermal properties are specified for every point on the grid. Wind speed variation over the grid is not modeled, but is specified by an empirical function. The model simulates net radiation, soil heat flow, sensible and latent heat flow, and surface temperature at specified time intervals. Output is in the form of contour maps. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geographical Analysis Wiley

An Approach toward Energy Balance Simulation over Rugged Terrain

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Abstract

We develop a digital computer model, based upon equilibrium temperature theory, of the magnitudes of the components of the energy balance for a mountainous topographic surface. The model includes an algorithm for calculating slope, exposure, and horizon information for every point on a digitized grid. Incoming solar and thermal radiation are then simulated for every point. At present the model is designed for clear‐sky conditions, but it could be modified for cloudy skies. Air temperature and humidity variations are specified by externally defined relations, and values for albedo and soil thermal properties are specified for every point on the grid. Wind speed variation over the grid is not modeled, but is specified by an empirical function. The model simulates net radiation, soil heat flow, sensible and latent heat flow, and surface temperature at specified time intervals. Output is in the form of contour maps.

Journal

Geographical AnalysisWiley

Published: Jan 1, 1979

References

  • On a Derivable Formula for Long‐Wave Radiation from Clear Skies
    Brutsaert, Brutsaert
  • A Coupled Heat and Moisture Transport Model for Arctic Soils
    Guymon, Guymon; Luthin, Luthin
  • Thermal Inertia Mapping
    Kahle, Kahle; Gillespie, Gillespie; Goetz, Goetz; Addington, Addington
  • Computer Simulation of the Snowmelt and Soil Thermal Regime at Barrow, Alaska
    Outcalt, Outcalt; Goodwin, Goodwin; Weller, Weller; Brown, Brown
  • Energy Balance Computations of Snowmelt in a Subarctic Area
    Price, Price; Dunne, Dunne

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