RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

Heat storage of pavement and its effect on the lower atmosphere

Auteur(s) / Author(s)

ASAEDA T. (1) ; CA V. T. (1) ; WAKE A. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Saitama univ., dep. civil eng., Saitama, JAPON

Résumé / Abstract

Heat flux at the air/ground interface was observed and analyzed for various pavement materials on summer days. The surface temperature, heat storage and its subsequent emission to the atmosphere were significantly greater for asphalt than for concrete or bare soil. At the maximum, asphalt pavement emitted an additional 150 W m-2 in infrared radiation and 200 W m-2 in sensible transport compared to a bare soil surface. Analyses based on a parallel layers model of the atmosphere indicated that most of the infrared radiation from the ground was absorbed within 200 m of the lower atmosphere, affecting air temperature near the ground. With large difference between air and ground surface temperature at noon, the rate of infrared absorption by the lower atmosphere over asphalt pavement was greater by 60 W m-2 than that over the soil surface or concrete pavement, a figure comparable to the absorption by turbulent transport.

Revue / Journal Title

Atmospheric environment    ISSN  1352-2310 

Source / Source

Congrès
CUTEST '92 : conference on the urban thermal environmental studies in Tohwa, Fukuoka , JAPON (07/09/1992)
1996, vol. 30, no 3 (185 p.)  (30 ref.), pp. 413-427

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1994) (Revue)

Mots-clés anglais / English Keywords

Air ground interface

;

Urban area

;

Pavement

;

Heat flow

;

Heat balance

;

Thermal storage medium

;

Summer

;

Infrared absorption

;

Japan

;

Asia

;

Mots-clés français / French Keywords

Interface air sol

;

Zone urbaine

;

Chaussée

;

Flux thermique

;

Bilan thermique

;

Matériau accumulation chaleur

;

Eté

;

Absorption IR

;

Japon

;

Asie

;

Mots-clés espagnols / Spanish Keywords

Interfase aire tierra

;

Zona urbana

;

Calzada

;

Flujo térmico

;

Balance térmico

;

Material acumulación calor

;

Verano

;

Absorción IR

;

Japón

;

Asia

;

Localisation / Location

INIST-CNRS, Cote INIST : 8940 B, 35400005210191.0060

Nº notice refdoc (ud4) : 2964741



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas