Coupling the Town Energy Balance (TEB) Scheme with the COSMO Atmospheric Model: Evaluation Against a Bulk Parameterization (TERRA_URB) for the Moscow Megacity
https://doi.org/10.24057/2071-9388-2025-3975
Abstract
Numerical weather prediction (NWP) models, coupled with urban parameterizations, play a crucial role in understanding and forecasting meteorological conditions within urban environments. In the mesoscale NWP model COSMO, only one urban parameterization, TERRA_URB, is available in the model’s operational version. TERRA_URB describes the city as a flat surface with modified physical properties in accordance with the urban canyon geometry. In this study, we have coupled the latest version 6.0 of the COSMO atmospheric model with a more sophisticated urban canopy model, TEB (Town Energy Balance), which explicitly simulates the energy exchange between the facets of the urban canyon. Here, we present the coupling approach and assessment of the model’s sensitivity to urban schemes of different complexity (TEB and TERRA_URB) over the Moscow region for August 2022. Despite using the same external parameters for both schemes, simulations demonstrate notable differences in modeled temperature, with TEB generally producing lower nighttime and morning temperatures. This leads to a greater underestimation of the urban heat island intensity in TEB when compared with the observations but improves the modeled diurnal cycle of the urban temperature. We attribute the observed temperature discrepancies to the different descriptions of heat conductivity and storage within urban surfaces. Although there are no clear advantages to using a more complex parameterization in terms of model air temperature errors, TEB offers more options to fine-tune input parameters and takes into account additional processes, in particular those associated with building heating and cooling, as well as with urban green infrastructure.
Keywords
urban parameterizations,
urban climate,
atmospheric models,
urban heat island,
Moscow agglomeration,
COSMO
Supporting agencies: Adaptation and testing of the TEB urban canopy model for conditions of Moscow was supported by the Russian Science Foundation № 24-17-00155. Coupling between TEB and COSMO was supported under the state assignment of Lomonosov Moscow State University. Preparation of the input parameters for urban canopy models was carried out with the financial support of the Russian Ministry of Science and Higher Education, agreement № 075-15-2019- 1621. Supercomputer simulations and model evaluation were supported by the Federal Service for Hydrometeorology and Environmental Monitoring of Russia (topic № 125032004255-7).
About the Authors
Maria A. Tarasova
Faculty of Geography, Lomonosov Moscow State University; Hydrometeorological Research Center of Russia; Research Computing Center, Lomonosov Moscow State University; Moscow Center for Fundamental and Applied Mathematics
Russian Federation
Russian Federation
Leninskie Gory, 1, Moscow, 119991
B. Predtechenskiy Pereulok, 11-13, Moscow, 123242
Leninskie Gory, 1, bld.4, Moscow, 119991
Leninskie Gory, 1, bld.4, Moscow, 119991
Mikhail I. Varentsov
Faculty of Geography, Lomonosov Moscow State University; Hydrometeorological Research Center of Russia; Research Computing Center, Lomonosov Moscow State University; Moscow Center for Fundamental and Applied Mathematics
Russian Federation
Russian Federation
Leninskie Gory, 1, Moscow, 119991
B. Predtechenskiy Pereulok, 11-13, Moscow, 123242
Leninskie Gory, 1, bld.4, Moscow, 119991
Leninskie Gory, 1, bld.4, Moscow, 119991
Andrey V. Debolskiy
Research Computing Center, Lomonosov Moscow State University; Moscow Center for Fundamental and Applied Mathematics; A.M. Obukhov Institute of Atmospheric Physics
Russian Federation
Russian Federation
Leninskie Gory, 1, bld.4, Moscow, 119991
Leninskie Gory, 1, bld.4, Moscow, 119991
3 Pyzhyovskiy Pereulok, Moscow, 119017
Victor M. Stepanenko
Faculty of Geography, Lomonosov Moscow State University; Research Computing Center, Lomonosov Moscow State University
Russian Federation
Russian Federation
Leninskie Gory, 1, Moscow, 119991
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Tarasova M.A., Varentsov M.I., Debolskiy A.V., Stepanenko V.M. Coupling the Town Energy Balance (TEB) Scheme with the COSMO Atmospheric Model: Evaluation Against a Bulk Parameterization (TERRA_URB) for the Moscow Megacity. GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY. 2025;18(3):118-134. https://doi.org/10.24057/2071-9388-2025-3975
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