An objective heat storage model and its comparison with other schemes
Abstract
Abstract–An objective hysteresis model to predict the storage heat flux in urban areas is presented. A
review of observational and theoretical work reveals this approach to be more appropriate than the linear
relation between soil heat flux and net all-wave radiation. A scheme to implement the model in any urban
area is developed. In essence the model only requires land cover and net all-wave radiation as input, but it
can be further refined to include anthropogenic heat release, the three-dimensional form of the surface, and
can allow for changes in source area. Tests against energy balance data from a site in Vancouver, BC indicate
the model simulates most aspects of measured storage heat flux values for a suburban site in both winter and
summer. Comparison with the results of a study in Bonn, Germany involving the use of heat flux plates and
detailed heat content change calculations gives good agreement except for a phase difference of about 1 h.
There is evidence to suggest that the spatial variation of intra-urban heat storage may be relatively
conservative.
Grimmond, C. S. B., H. A. Cleugh and T. R. Oke, 1991: “An objective heat storage model and its comparison with other schemes,” Atmospheric Environment, 25B, 311-326.
No comments yet.