Issue |
Ann. de l’Associat. Internat. de Climatologie
Volume 2, 2005
|
|
---|---|---|
Page(s) | 41 - 54 | |
DOI | https://doi.org/10.4267/climatologie.864 | |
Published online | 09 October 2015 |
Bilans radiatif et d’énergie dans un canyon urbain
Radiation and energy budgets in an “urban canyon”
1
Laboratoire des Sciences de l’Image, de l’Informatique et de la Télédétection (UMR 7005 ULP/CNRS) Pole API, B.P. 10413, 67412 Illkirch CEDEX, France
2
Centre de Géochimie de la Surface (UMR 7517 ULP/CNRS), Université Louis Pasteur, Strasbourg, France
* najjar@equinoxe.u-strasbg.fr
Une campagne de mesures en climatologie urbaine a été réalisée durant l’été 2002 à Strasbourg dans le cadre du projet RECLUS. Parmi les sites de mesures, un échafaudage installé dans une rue a permis de réaliser des mesures continues de différents paramètres météorologiques sur quatre niveaux. L’objectif était de documenter les différents processus physiques qui interviennent dans l’élaboration du microclimat à l’intérieur d’un canyon urbain. Le présent article décrit les mesures et les premiers résultats obtenus en ce qui concerne les bilans radiatifs et d’énergie à l’échelle du canyon urbain.
Abstract
A measurement campaign in urban climatology was carried out in the Strasbourg area during the summer 2002 (RECLUS project). A scaffolding was installed in an urban canyon oriented NNE-SSW with a height/width ratio (H/L) approximately equal to one. The measurements were done at 4 levels. At each level all the components of radiation balance were measured horizontally and parallel to the walls oriented E and W. The meteorological parameters like temperature humidity and wind turbulence were also registered. Finally at the top of the canyon (the roof level), the turbulent, sensible and latent heat fluxes were measured for a week. This paper describes results concerning radiative and energy balance in urban canyon.
Mots clés : bilan radiatif / bilan d’énergie / climatologie urbaine / canyon urbain
Key words: radiation balance / energy balance / urban climatology / urban canyon
© Association internationale de climatologie 2005
This is an Open Access article distributed under the terms of the Creative Commons Attribution License CC-BY-NC (http://creativecommons.org/licenses/by-nc/4.0), which permits unrestricted use, distribution, and reproduction in any medium, except for commercial purposes, provided the original work is properly cited.
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