Evaluation of the Simulated Spatio-Temporal Variability of the Anthropogenic Heat Flux in the Agglomeration of Toulouse, France
Robert Schoetter
(1)
,
Alexandre Amossé
(2)
,
Erwan Bocher
(3)
,
Marion Bonhomme
(2)
,
Alexis Bourgeois
(4)
,
Serge Faraut
(2)
,
Julia Hidalgo
(5)
,
Aude Lemonsu
(1)
,
Jean-Pierre Lévy
(4)
,
Valéry Masson
(1)
,
Gwendall Petit
(6)
,
Nathalie Tornay
(2)
1
CNRM -
Centre national de recherches météorologiques
2 MAP - Modèles et simulation pour l'architecture, l'urbanisme et le paysage
3 Lab-STICC_CNRS_CID_DECIDE
4 LATTS - Laboratoire Techniques, Territoires et Sociétés
5 LISST - Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires
6 Lab-STICC_UBS_CID_DECIDE
2 MAP - Modèles et simulation pour l'architecture, l'urbanisme et le paysage
3 Lab-STICC_CNRS_CID_DECIDE
4 LATTS - Laboratoire Techniques, Territoires et Sociétés
5 LISST - Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires
6 Lab-STICC_UBS_CID_DECIDE
Robert Schoetter
- Fonction : Auteur
- PersonId : 1079536
- IdHAL : robertschoetter
- ORCID : 0000-0002-2284-4592
Erwan Bocher
- Fonction : Auteur
- PersonId : 1577
- IdHAL : erwan-bocher
- ORCID : 0000-0002-4936-7079
- IdRef : 095751548
Marion Bonhomme
- Fonction : Auteur
- PersonId : 173919
- IdHAL : marion-bonhomme
- ORCID : 0000-0002-5298-7068
- IdRef : 230475000
Serge Faraut
- Fonction : Auteur
- PersonId : 19994
- IdHAL : serge-faraut
- ORCID : 0000-0001-8079-7977
Julia Hidalgo
- Fonction : Auteur
- PersonId : 2034
- IdHAL : julia-hidalgo
- ORCID : 0000-0002-1764-0536
- IdRef : 139905154
Aude Lemonsu
- Fonction : Auteur
- PersonId : 750097
- IdHAL : aude-lemonsu
Jean-Pierre Lévy
- Fonction : Auteur
- PersonId : 10931
- IdHAL : jean-pierre-levy
- ORCID : 0000-0003-1677-5217
- IdRef : 050647288
Gwendall Petit
- Fonction : Auteur
- PersonId : 1620
- IdHAL : gwendall-petit
- ORCID : 0000-0002-4750-9600
- IdRef : 253123194
Résumé
The energy and moisture exchange between the surface and the atmosphere in urban areas is characterised by the net radiation, the sensible and latent heat flux, the storage of heat in the construction materials as well the anthropogenic heat flux. The anthropogenic heat flux is mainly due to heating and cooling of buildings, industrial activities, electricity consumption for household equipment and lighting as well as human metabolism. The energy demand for heating and cooling of buildings depends on the meteorological conditions. For this reason, it has become usual to couple urban canopy parametrisations (UCP) for atmospheric models like the Town Energy Balance (TEB) with a simple Building Energy Model (BEM) to interactively simulate the heating and cooling energy demand as a function of the prevailing meteorological conditions. With this approach, one part of the anthropogenic heat flux is no longer prescribed (e.g. via an inventory), but interactively simulated and thus becomes a prognostic variable.
Various parameters characterising the urban morpohology (e.g. building surface cover fraction, building height), the construction materials and the building use (e.g. design temperature for heating and cooling) need to be known in order to perform a simulation with an UCP-BEM model. These parameters cannot be known perfectly and therefore the approach of interactively simulating the heating and cooling energy demand introduces a new uncertainty in the simulation of the urban surface energy budget. For this reason it is necessary to critically evaluate the spatio-temporal variability of the anthropogenic heat flux simulated using the UCM-BEM approach.
In this study, we use TEB-BEM to simulate the spatio-temporal variability of the meteorology-dependent anthropogenic heat flux for the agglomeration of Toulouse in southern France. Data describing the urban morphology is taken from the French 3D vector description of the territory (BD TOPO). Information on building construction materials and the presence of insulation materials as a function of building type, construction period and building use is retrieved from a database describing building archetypes in France. The most relevant human-behaviour-related parameters are the design temperatures for heating and cooling, the internal heat release and the usage of shading and ventilation by the inhabitants. These parameters are estimated via a statistical modelling approach based on surveys and socio-economic data available from French census data.
In a first step, TEB-BEM is forced with meteorological parameters observed at a meteorological mast at ~30 m above roof level during the CAPITOUL campaign for March 2004 to March 2005 („offline“ approach). In a second step, TEB-BEM is coupled to the mesoscale atmospheric model Méso-NH. For both, the „offline“ and „coupled“ approach, the spatio-temporal variability of the simulated anthropogenic heat release is evaluated against observed electricity and gas consumption data available for the CAPITOUL period at daily temporal resolution and a spatial resolution of 100x100 m².
Domaines
GéographieFormat du dépôt | Notice |
---|---|
Type de dépôt | Communication dans un congrès |
Titre |
en
Evaluation of the Simulated Spatio-Temporal Variability of the Anthropogenic Heat Flux in the Agglomeration of Toulouse, France
|
Résumé |
en
The energy and moisture exchange between the surface and the atmosphere in urban areas is characterised by the net radiation, the sensible and latent heat flux, the storage of heat in the construction materials as well the anthropogenic heat flux. The anthropogenic heat flux is mainly due to heating and cooling of buildings, industrial activities, electricity consumption for household equipment and lighting as well as human metabolism. The energy demand for heating and cooling of buildings depends on the meteorological conditions. For this reason, it has become usual to couple urban canopy parametrisations (UCP) for atmospheric models like the Town Energy Balance (TEB) with a simple Building Energy Model (BEM) to interactively simulate the heating and cooling energy demand as a function of the prevailing meteorological conditions. With this approach, one part of the anthropogenic heat flux is no longer prescribed (e.g. via an inventory), but interactively simulated and thus becomes a prognostic variable.
Various parameters characterising the urban morpohology (e.g. building surface cover fraction, building height), the construction materials and the building use (e.g. design temperature for heating and cooling) need to be known in order to perform a simulation with an UCP-BEM model. These parameters cannot be known perfectly and therefore the approach of interactively simulating the heating and cooling energy demand introduces a new uncertainty in the simulation of the urban surface energy budget. For this reason it is necessary to critically evaluate the spatio-temporal variability of the anthropogenic heat flux simulated using the UCM-BEM approach.
In this study, we use TEB-BEM to simulate the spatio-temporal variability of the meteorology-dependent anthropogenic heat flux for the agglomeration of Toulouse in southern France. Data describing the urban morphology is taken from the French 3D vector description of the territory (BD TOPO). Information on building construction materials and the presence of insulation materials as a function of building type, construction period and building use is retrieved from a database describing building archetypes in France. The most relevant human-behaviour-related parameters are the design temperatures for heating and cooling, the internal heat release and the usage of shading and ventilation by the inhabitants. These parameters are estimated via a statistical modelling approach based on surveys and socio-economic data available from French census data.
In a first step, TEB-BEM is forced with meteorological parameters observed at a meteorological mast at ~30 m above roof level during the CAPITOUL campaign for March 2004 to March 2005 („offline“ approach). In a second step, TEB-BEM is coupled to the mesoscale atmospheric model Méso-NH. For both, the „offline“ and „coupled“ approach, the spatio-temporal variability of the simulated anthropogenic heat release is evaluated against observed electricity and gas consumption data available for the CAPITOUL period at daily temporal resolution and a spatial resolution of 100x100 m².
|
Auteur(s) |
Robert Schoetter
1
, Alexandre Amossé
2
, Erwan Bocher
3
, Marion Bonhomme
2
, Alexis Bourgeois
4
, Serge Faraut
2
, Julia Hidalgo
5
, Aude Lemonsu
1
, Jean-Pierre Lévy
4
, Valéry Masson
1
, Gwendall Petit
6
, Nathalie Tornay
2
1
CNRM -
Centre national de recherches météorologiques
( 490594 )
- 42 avenue Gaspard Coriolis
31057 TOULOUSE
- France
2
MAP -
Modèles et simulation pour l'architecture, l'urbanisme et le paysage
( 516 )
- France
3
Lab-STICC_CNRS_CID_DECIDE
( 530909 )
- UMR 6285
IMT Atlantique
CS 83818
29238 BREST CEDEX 3
- France
4
LATTS -
Laboratoire Techniques, Territoires et Sociétés
( 1278 )
- Ecole des Ponts ParisTech, Cité Descartes, 6 et 8 avenue Blaise Pascal, 77454 Marne-la-Vallée cedex 2
- France
5
LISST -
Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires
( 44429 )
- Université Toulouse Jean Jaurès Maison de la Recherche 5 Allées Antonio Machado 31058 TOULOUSE CEDEX 9
- France
6
Lab-STICC_UBS_CID_DECIDE
( 392127 )
- France
|
Langue du document |
Anglais
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Invité |
Non
|
Audience |
Internationale
|
Actes |
Non
|
Titre du congrès |
13th Symposium of the Urban Environment
|
Date début congrès |
2017-01-23
|
Date fin congrès |
2017-01-26
|
Ville |
Seattle
|
Pays |
États-Unis
|
URL du congrès ou éditeur |
https://ams.confex.com/ams/97Annual/webprogram/13URBAN.html
|
Domaine(s) |
|
Projet(s) ANR |
|
Mots-clés |
en
Urban Environment, Urban Climate
|
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