Heat balance of an asphalt surface: observations and physically-based simulations
2006 (English)In: Meteorological Applications, ISSN 1350-4827, E-ISSN 1469-8080, Vol. 13, no 2, 203-212 p.Article in journal (Refereed) Published
A physically-based 1-D beat and mass transfer model was tested to estimate the beat fluxes of an asphalt surface. The model was run for two summer months for a road test site in southwest Sweden. Parameters for thermal properties, surface runoff, radiation and turbulent transfer were obtained from a description of the road stratification and from the literature. Coefficients of determination (r(2)) 0.94, 0.93 and 0.97 were obtained when simulated results were compared with observations of net radiation, beat flow below the surface and surface temperature respectively, all with slope coefficients close to unity. In addition, simulation results elucidated the robe of water vapour transport through the asphalt-soil profile and its effect on the latent beat flow from the surface. Problems were identified with closure of the beat balance in measurements based on discrepancy between simulated and observed sensible heat flux.
Place, publisher, year, edition, pages
2006. Vol. 13, no 2, 203-212 p.
CoupModel, energy balance, road, transport, bare-soil, numerical-model, temperature, parameterization, evaporation, prediction, moisture, ice
Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:kth:diva-15795DOI: 10.1017/s1350482706002179ISI: 000238662200008ScopusID: 2-s2.0-33748130507OAI: oai:DiVA.org:kth-15795DiVA: diva2:333837
QC 201005252010-08-052010-08-052010-09-01Bibliographically approved