Impact of city expansion and increased heat fluxes scenarios on the urban boundary layer of Bilbao using Enviro-HIRLAM

TY - JOUR

T1 - Impact of city expansion and increased heat fluxes scenarios on the urban boundary layer of Bilbao using Enviro-HIRLAM

AU - Gonzalez-Aparicio, Iratxe

AU - Baklanov, A.

AU - Hidalgo, J

AU - Korsholm, Ulrik S.

AU - Nuterman, Roman

AU - Mahura, Alexander

PY - 2014/10/12

Y1 - 2014/10/12

N2 - Most of medium-sized coastal cities are in continuous development and therefore the future impacts of urbanization on the atmospheric boundary layer (ABL) over them are expected to become more significant. This study is a complementary study of the urban heat island (UHI) over Bilbao, and its aim is to explore how the properties and structure of the ABL change depending on different urban scenarios during two short periods in summer and in winter under calm wind conditions. The analysis is carried out with the Enviro-HIRLAM model coupled with the Building Effect Parameterization urban module. The scenarios are defined according to two independent drivers: the expansion of the city in several sizes, and the increase of the anthropogenic heat fluxes. This study shows the differences between the scenarios in terms of the horizontal extension of the urban plume and the vertical development of the UHI. The expansion of the city is the driver that has the largest impact on the ABL.

AB - Most of medium-sized coastal cities are in continuous development and therefore the future impacts of urbanization on the atmospheric boundary layer (ABL) over them are expected to become more significant. This study is a complementary study of the urban heat island (UHI) over Bilbao, and its aim is to explore how the properties and structure of the ABL change depending on different urban scenarios during two short periods in summer and in winter under calm wind conditions. The analysis is carried out with the Enviro-HIRLAM model coupled with the Building Effect Parameterization urban module. The scenarios are defined according to two independent drivers: the expansion of the city in several sizes, and the increase of the anthropogenic heat fluxes. This study shows the differences between the scenarios in terms of the horizontal extension of the urban plume and the vertical development of the UHI. The expansion of the city is the driver that has the largest impact on the ABL.

U2 - 10.1016/j.uclim.2014.07.010

DO - 10.1016/j.uclim.2014.07.010

M3 - Journal article

SN - 2212-0955

VL - 10

SP - 831

EP - 845

JO - Urban Climate

JF - Urban Climate

IS - 5

ER -