Large eddy simulation of urban features for Copenhagen metropolitan area

A. Mahura (1, 2, 3) , S. Leroyer (1) , P. Mestayer (1) , I. Calmet (1) , Samuel Dupont (4) , Nathalie Long (1) , A. Baklanov (2) , C. Petersen (2) , K. Sattler (2) , N. W. Nielsen (2)

1 LMF - Laboratoire de mécanique des fluides
2 DMI - Danish Meteorological Institute
3 Institute of Northern Environmental Problems
4 EPHYSE - Écologie fonctionnelle et physique de l'environnement

The large eddy simulations employing the SUBMESO model with the urban soil layer model SM2-U were performed for the model domain covering the Danish Island of Sealand and including the Copenhagen metropolitan area. Monthly and diurnal cycle variability were studied for the net radiation, sensible and storage heat fluxes, surface's temperatures, and others. These were evaluated for selected urban vs. non urban related types of covers/surfaces and urban districts such as city center, high buildings, industrial, and residential. Results showed strong effects of urban features on temporal and spatial variability. They are useful and applicable for verification of numerical weather prediction models and development of urban canopy parameterizations.

Domains: Ocean, Atmosphere

A. Mahura, S. Leroyer, P. Mestayer, I. Calmet, Samuel Dupont, et al.. Large eddy simulation of urban features for Copenhagen metropolitan area. Atmospheric Chemistry and Physics Discussions, 2005, 5 (6), pp.11183-11213. ⟨hal-00327983⟩