TY - JOUR
T1 - Energy flux parametrization as an opportunity to get Urban Heat Island insights
T2 - The case of Athens, Greece (Thermopolis 2009 Campaign)
AU - Loupa, G.
AU - Rapsomanikis, S.
AU - Trepekli, A.
AU - Kourtidis, K.
PY - 2016
Y1 - 2016
N2 - Energy flux parameterization was effected for the city of Athens, Greece, by utilizing two approaches, the Local- Scale UrbanMeteorological Parameterization Scheme(LUMPS) and the Bulk Approach (BA). In situ acquired data are used to validate the algorithms of these schemes and derive coefficients applicable to the study area. Model results from these corrected algorithms are compared with literature results for coefficients applicable to other cities and their varying construction materials. Asphalt and concrete surfaces, canyons and anthropogenic heat releases were found to be the key characteristics of the city center that sustain the elevated surface and air temperatures, under hot, sunny and dryweather, during theMediterranean summer. A relationship between storage heat flux plus anthropogenic energy flux and temperatures (surface and lower atmosphere) is presented, that results in understanding of the interplay between temperatures, anthropogenic energy releases and the city characteristics under the Urban Heat Island conditions.
AB - Energy flux parameterization was effected for the city of Athens, Greece, by utilizing two approaches, the Local- Scale UrbanMeteorological Parameterization Scheme(LUMPS) and the Bulk Approach (BA). In situ acquired data are used to validate the algorithms of these schemes and derive coefficients applicable to the study area. Model results from these corrected algorithms are compared with literature results for coefficients applicable to other cities and their varying construction materials. Asphalt and concrete surfaces, canyons and anthropogenic heat releases were found to be the key characteristics of the city center that sustain the elevated surface and air temperatures, under hot, sunny and dryweather, during theMediterranean summer. A relationship between storage heat flux plus anthropogenic energy flux and temperatures (surface and lower atmosphere) is presented, that results in understanding of the interplay between temperatures, anthropogenic energy releases and the city characteristics under the Urban Heat Island conditions.
KW - Aerodynamic resistance for heat
KW - Anthropogenic releases
KW - Heat waves
KW - KB
KW - Objective hysteresis model
KW - Storage heat flux density
U2 - 10.1016/j.scitotenv.2015.10.056
DO - 10.1016/j.scitotenv.2015.10.056
M3 - Journal article
AN - SCOPUS:84946223045
SN - 0048-9697
VL - 542
SP - 136
EP - 143
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -