Boundary subroutine for the NCAR global climate model.

By: Contributor(s): Series: NCAR Technical Notes | NCAR/TN- ; 173+IABoulder, CO : National Center for Atmospheric Research (NCAR), 1981Description: 75 pagesContent type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
Subject(s): Online resources: Summary: This report summarizes the parameterizations of surface processes currently being used in the NCAR grid point GCM. It treats in particular: (i) the calculation of ground, snow or sea ice surface temperature in response to net surface heating and depending on soil or snow heat capacity and thermal conductivity; (ii) the calculation of soil moisture, evaporation, surface and groundwater runoff; (iii) the specification of vegetation cover in terms of fractional ground shading, relative area of transpiring and nontranspiring plant surfaces, and land use type; (iv) the surface albedo in terms of soil moisture, vegetation cover, and snow cover, including the shading of snow by vegetation; (v) the plant water budget including dew, intercepted precipitation and transpiration as limited by stomatal resistance and soil dryness; (vi) surface drag coefficients as a function of bulk Richardson number and vegetation cover; (vii) the determination of foliage temperature in response to energy balance requirements and consequent fluxes of heat and moisture from the foliage to canopy air.
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REPORT REPORT NCAR Library Mesa Lab 03031 1 Available 50583010069189
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Technical Report

This report summarizes the parameterizations of surface processes currently being used in the NCAR grid point GCM. It treats in particular: (i) the calculation of ground, snow or sea ice surface temperature in response to net surface heating and depending on soil or snow heat capacity and thermal conductivity; (ii) the calculation of soil moisture, evaporation, surface and groundwater runoff; (iii) the specification of vegetation cover in terms of fractional ground shading, relative area of transpiring and nontranspiring plant surfaces, and land use type; (iv) the surface albedo in terms of soil moisture, vegetation cover, and snow cover, including the shading of snow by vegetation; (v) the plant water budget including dew, intercepted precipitation and transpiration as limited by stomatal resistance and soil dryness; (vi) surface drag coefficients as a function of bulk Richardson number and vegetation cover; (vii) the determination of foliage temperature in response to energy balance requirements and consequent fluxes of heat and moisture from the foliage to canopy air.

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