Abstract
Experimental evidence indicates that the diurnal behaviour of the fluxes of heat into the ground and into the atmosphere versus the net flux of radiation can be modelled by closed curves, the hourly values folowing one another in either a clockwise or counter clockfashion. A general formulation to express the different heat fluxes as a function of net radiation Φ is proposed. This relationship between the different heat fluxes and Φ can be expressed as a sum of three terms: the first indicates a direct proportionality to Φ, the second gives the deviation from linearity and depends on ∂Φ/∂t, and the third gives the value of the flux when Φ = 0. The formulae are then expressed as a function of time and the ratios between the heat fluxes and Φ are evaluated. A comparison with the approximations generally used shows that the latter may be considered as particular cases of the more general equations proposed here.
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Baver, L. D., Gardner, W. H., and Gardner, W. R.: 1973, Soil Physics, John Wiley and Sons, Inc., New York. 498 pp.
Bernardi, A., Camuffo, D., Carboni, G., and Piano, A.: 1981, Propagazione dell'Onda Termica e del Flusso di Calore nel Suolo, XX ANIAI Conference, Abano Terme, Italy, Nov. 1981, 310–316.
Burridge, D. M. and Gadd, A. J.: 1977, ‘The Meteorological Office Operational 10-Level Numerical Weather Prediction Model’, Meteor. Office, London, Scientific Paper 34.
Camuffo, D., Bernardi, A., and Bacci, P.: 1982, ‘Computing the Flux of Moisture from Net Radiation and Soil Wetting’, Boundary-Layer Meteorol. 22, 503–510.
Holtslag, A. A. M., De, Bruin H. A. R., and Van, Ulden A. P.: 1980, ‘Estimation of the Sensible Heat Flux from Standard Meteorological Data for Stabili Application.
Makkink, G. F.: 1957, ‘Testing the Penman-Formula by means of Lysimeters’. Y. Inst. Water Eng., London 11, 277–288.
Munn, R. E.: 1966, Descriptive Micrometeorology, Academic Press, New York, 245 pp.
Penman, H. L.: 1948, ‘Natural Evaporation from Open Water, Bare Soil and Grass’, Proc. Roy. Soc., London A193, 120–145.
Priestley, C. N. B. and Taylor, R. Y.: 1972, ‘On the Assessment of Surface Heat Flux and Evaporation using Large Scale Parameters’, Monthly Weather Rev. 100, 81–92.
Schwerdtfeger, P.: 1976, Physical Principles o Micrometeorological Measurements, Elsevier, Amsterdam, 113.
Smith, F. B.: 1979, ‘The Relation between Pasquill Stability P and Kazanski-Monin Stability Μ (in Neutral and Unstable Conditions)’, Atmos. Envir. 13, 879–881.
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Camuffo, D., Bernardi, A. An observational study of heat fluxes and their relationships with net radiation. Boundary-Layer Meteorol 23, 359–368 (1982). https://doi.org/10.1007/BF00121121
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DOI: https://doi.org/10.1007/BF00121121