Effect of Land Use/Cover Changes on Urban Cool Island Phenomenon in Seville, Spain
Metadatos
Mostrar el registro completo del ítemAutor
Jadraque Gago, EulaliaEditorial
MDPI
Materia
Urban heat island Land surface temperature Impervious surface Greenspace Baresoil and cultivated Land use/land cover Remote sensing Seville City
Fecha
2020-06-12Referencia bibliográfica
Jadraque Gago, E., Etxebarria Berrizbeitia, S., Pacheco Torres, R., & Muneer, T. (2020). Effect of Land Use/Cover Changes on Urban Cool Island Phenomenon in Seville, Spain. Energies, 13(12), 3040. [doi:10.3390/en13123040]
Resumen
This paper analyses Seville’s surface urban heat island (SUHI) phenomenon, comparing
spatial and temporal patterns of land surface temperature (LST) during July 1987, 2000 and 2017.
Landsat data captured throughout three July months were analyzed for the different years, techniques
of geographic information systems, ecological variables and geospatial approaches and used to carry
out the analysis. The results indicate that from 1987 to 2017, the averaged LST has increased by 9.1 ◦C
in the studied area. The urban areas are colder than their surroundings, suggesting the role of baresoil
and cultivated land in the reversal of the SUHI phenomenon. The results show that a fraction of green
space has a high unstandardized coefficient (β) through the three time periods. A decreasing trend
is also observed in the standardized β “fraction of impervious surface” in the three time periods.
The linear regression analysis shows a negative relationship of mean LST with impervious surface
fraction due to the presence of shadows projected by buildings, and a positive relationship with green
space fraction caused by the influence of baresoil and cultivated land that inverts the LST behavior
pattern. The study concludes that there is a need to implement SUHI mitigation strategies during the
initial phases of engineering projects where the origin of this problem can be acted upon, since the
process of creating streets and public space offers a valuable opportunity to restore the environmental
quality and diminish the effects generated by climate change.