Original paper
The urban land use in the COSMO-CLM model: a comparison of three parameterizations for Berlin
Trusilova, Kristina; Schubert, Sebastian; Wouters, Hendrik; Früh, Barbara; Grossman-Clarke, Susanne; Demuzere, Matthias; Becker, Paul
Meteorologische Zeitschrift Vol. 25 No. 2 (2016), p. 231 - 244
26 references
published: May 9, 2016
published online: Aug 31, 2015
manuscript accepted: Feb 25, 2015
manuscript revision received: Aug 6, 2014
manuscript revision requested: May 6, 2015
manuscript received: Feb 25, 2014
Open Access (paper may be downloaded free of charge)
Abstract
The regional non-hydrostatic climate model COSMO-CLM is increasingly being used on fine spatial scales of 1–5 km. Such applications require a detailed differentiation between the parameterization for natural and urban land uses. Since 2010, three parameterizations for urban land use have been incorporated into COSMO-CLM. These parameterizations vary in their complexity, required city parameters and their computational cost. We perform model simulations with the COSMO-CLM coupled to these three parameterizations for urban land in the same model domain of Berlin on a 1-km grid and compare results with available temperature observations. While all models capture the urban heat island, they differ in spatial detail, magnitude and the diurnal variation.
Keywords
urban heat island • regional climate modelling • urban land use parameterization