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research article

Multi-scale modeling of the urban meteorology: Integration of a new canopy model in the WRF model

Mauree, Dasaraden  
•
Blond, Nadège
•
Clappier, Alain  
August 24, 2018
Urban Climate

Urban parametrizations have been recently developed and integrated in mesoscale meteorological models for a better reproduction of urban heat islands and to compute building energy consumption. The objective of the present study is to evaluate the value of the use of a module able to produce highly resolved vertical profiles of these variables. For this purpose, the Canopy Interface Model (CIM) was integrated as an additional urban physics option in the Weather Research and Forecasting model. The coupling method is here detailed and its evaluation is done using a reference run based on a fine resolution WRF simulation. In order to keep both the CIM and the mesoscale model coherent, an additional term is added to the calculation of the CIM. Finally, the BUBBLE dataset is used to validate the simulation of the profiles from CIM. It is demonstrated that the proposed coupling improves the simulations of the variables in an urban grid and that the WRF + CIM + BEP-BEM system can provide highly resolved vertical profiles while at the same time improving significantly computational time. The data from these preliminary results are very promising as it provides the foundation for the CIM to act as an interface between mesoscale and microscale models.

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Type
research article
DOI
10.1016/j.uclim.2018.08.002
Author(s)
Mauree, Dasaraden  
Blond, Nadège
Clappier, Alain  
Date Issued

2018-08-24

Published in
Urban Climate
Volume

26

Start page

60

End page

75

Subjects

Atmospheric boundary layer

•

Multiscale meteorological modeling

•

Turbulence paramterization

•

Urban canopy parametrizations

•

Urban meteorology

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LESO-PB  
FunderGrant Number

CTI/Innosuisse

SCCER FEEB&D

Available on Infoscience
September 11, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/148207
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