Numerical Experiments on the Computation of Ground Surface Temperature in an Atmospheric Circulation Model.

Chandrakant M. Bhumralkar

ResearchPublished 1974

Integration of the RAND two-level general circulation model to compute the ground (bare land only) surface temperature by solving (1) the interface heat balance equation without soil heat flux, (2) the interface heat balance equation with soil heat flux included, and (3) a prognostic equation which includes the heat capacity of the soil as well as an explicit soil heat flux formulation. The integrations were performed for 48 hours for the month of January. A comparison of results shows that the most realistic distribution of the ground surface temperature with respect to the amplitude, diurnal range, and phase relationship between ground temperature, solar radiation, and soil heat flux is obtained by the method which solves a prognostic equation including the soil heat flux as well as the soil heat capacity. 63 pp. Ref.

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Bhumralkar, Chandrakant M., Numerical Experiments on the Computation of Ground Surface Temperature in an Atmospheric Circulation Model. Santa Monica, CA: RAND Corporation, 1974. https://www.rand.org/pubs/reports/R1511.html.
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