Influence of Thermal Roughness Parameterizations on Simulations of Turbulent Fluxes by the Atmospheric Surface Layer ModelстатьяИсследовательская статья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 января 2026 г.
Аннотация:Models of the atmospheric surface layer describe the processes of momentum and heat and moisture exchange between the atmosphere and the underlying surface. In the framework of the Monin-Obukhov similarity theory, the height of thermal roughness determines the efficiency of heat transfer in the surface layer. This paper considers different ways of determining this characteristic on the basis of existing parameterizations implemented in the actively developing surface layer model of the Marchuk Institute of Numerical Mathematics, Russian Academy of Sciences (INM RAS). The results using the previously proposed parameterizations are analyzed and compared with observational data for different surface types. The sensitivity of the model reproduction of the heat flux to the choice of the thermal roughness parameterization is evaluated. The significant differences both in the roughness parameter and in the estimates of heat and momentum fluxes obtained in the model depending on the surface type indicate the importance of taking into account the surface type in the schemes for calculating turbulent flows.