Name: LAIZ REIS LEAL
Type: MSc dissertation
Publication date: 09/10/2018
Advisor:
Name |
Role |
|---|---|
| CRISTINA ENGEL DE ALVAREZ | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| CRISTINA ENGEL DE ALVAREZ | Advisor * |
| GEILMA LIMA VIEIRA | Internal Examiner * |
| NEYVAL COSTA REIS JR. | External Examiner * |
Summary: The pursuit for urban environment adaptation to climate change is indicated one of the
greatest challenges of this century, and the cities appear both as potential originators of the
climate change as well as targets of such consequences. Therefore, the processes of urban
planning are essentials, aiming to mitigate the climate change and the adaptations of cities
for future events. Thus, predictive studies are required to support the decision-making,
observing those highlighted and referred to computational simulations. Predictions alert
that extreme events will occur in more frequency and intensity, and among them are
included heat waves, in which high temperatures interfere negatively in the quality of life,
and even more, increasing risks to the human health. The urban configurations that act
already to modify the original environmental conditions, related to the influences of the
climate changes, can have effects potentialized, interfering directly in the energy balance of
the urban environment. The aim of this study is to evaluate the implications of urban density
in the thermal behavior at the pedestrian level toward to the potential global warming
scenario in Vitória (ES). The methodology is composed by field survey, microclimatic
measurements, modeling and simulations of the measured scenarios using the program
ENVI_MET 4.3, considering evaluations of its accuracy. The main simulations included four
different morphological scenarios, in which the parameters of densification and
verticalization were changed. As result, it was identified that the scenario of greatest
verticalization presented the lowest values for both Ta and TRM, reaching a difference up to
1°C for Ta at 15h, and up to 27°C for TRM at 9h, both linked to the standard scenario
according to the current condition. This contrast was nearly related to the direct incidence of
the radiation. Therefore, the scenarios more shaded by buildings indicated lower
temperatures at the street level. However, the same scenarios, due to the fact that they
were denser, and thus composed of a greater quantity of construction materials, had their
cooling hindered toward the energy balance process, apart from having influenced the wind
distribution and velocity, outlining a decrease of these values in most of the analyzed area.
Keywords: Urban thermal attenuation. Microclimatic simulation. ENVI_MET 4.3. Climate
changes. Urban Planning.
