Gradiente térmico en la ciudad de Medellín y su relación con el crecimiento urbano: estudio de caso
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction. Some research has shown that the
thermal gradient observed between densely built
urban areas and the rural periphery is associated
with urban expansion in large cities and is the result
of the change in land cover due to urbanization and
various activities such as transport and industry. It
has been shown that the Aburrá Valley has suffered a
remarkable change in temperature increase in the last
decades. However, quantitative studies are needed to
demonstrate the influence of urban growth on the city
temperature through models that allow estimating
predictions and supporting the generation of tools
and strategies for territorial planning. Objective.
Evaluate the relationship between changes in the
city temperatures and urban growth. Materials and
methods. To estimate surface temperature, we used
USGS Landsat satellite images from 2010 to 2014. The
atmospheric temperature was obtained from six local
weather stations. Results. There was no difference
between the two temperature measurement systems
(surface and air), and atmospheric temperature
variations were evidenced between stations.
Conclusions. Using a descriptive model, we found
an association between the constructed area and
surface temperatures, identifying areas of high degree
of densification with evident increases in temperature
caused by land uses.
Description
Keywords
Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Gradiente térmico, Temperatura atmosférica, Temperatura superficial, Usos del suelo, Densificación urbana, Crecimiento urbano
Citation
Revista Producción + Limpia Vol. 12 N. 2