Banca de DEFESA: CLEVERSON RICARDO SOARES VIANA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : CLEVERSON RICARDO SOARES VIANA
DATA : 10/12/2025
HORA: 08:00
LOCAL: CELBE/HÍBRIDO
TÍTULO:

CLIMATE INTERACTIONS IN CITIES OF THE
BRAZILIAN CENTER-WEST: A STUDY ON THERMAL COMFORT, HEAT WAVES, AND AIR POLLUTANTS

PALAVRAS-CHAVES:

Climatic comfort; Climate crisis; Climatic pollutants; Ecotonal zones

PÁGINAS: 79
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The global climate crisis has significantly impacted urban environments, intensifying phenomena such as heatwaves, which raise temperatures and contribute to climate instability in cities. This results in bioclimatic indices exceeding recommended thresholds for both human health and ecosystems. Additionally, atmospheric pollution from intense wildfires generates dense smoke clouds that can be transported to urban centers, amplifying the health impacts on the population in these areas. Tropical ecotonal regions, such as Brazil’s Central-West, are especially vulnerable to severe climate changes and may be deeply affected by the current climate crisis. Cities located in these ecotonal zones, such as those in the state of Mato Grosso, are relatively more exposed to intense and frequent heatwaves. This vulnerability can be attributed to a combination of geographic, climatic, and socioeconomic factors prevalent in these regions. Given the current climate emergency faced by the ecotonal region of Brazil's Central-West, this dissertation aims to analyze the responses of urbanized areas to abrupt temperature changes, thermal comfort variations, and the presence of atmospheric pollutants. The study proposes to examine urba climate dynamics, with an emphasis on bioclimatic comfort, the occurrence of extreme events such as heatwaves, and atmospheric pollution associated with intense burning. In Chapter 1, bioclimatic indices and land surface temperatures in urban and non-urban areas were analyzed. The results show that the population is exposed to harmful thermal conditions (above 38°C) for approximately nine hours per day. Surface temperature analysis revealed that in the ecotonal transition region, temperatures can reach up to 54°C depending on environmental conditions, while urban perimeters can reach up to 50°C. Chapter 2 identified heatwaves occurring in two municipalities of the Central-West region — Porto Estrela and Cuiabá — between 2008 and 2023, as well as the application of predictive models. Cuiabá recorded average temperatures of 26°C and Porto Estrela of 25°C. Projections indicate that, within 100 years, these municipalities could reach average temperatures of up to 35°C. Chapter 3 aimed to diagnose locations with the highest incidence of PM2.5, considering both indoor and outdoor environments. Results showed that in indoor settings, PM2.5 concentrations may be up to four times higher than the limits recommended by Brazilian regulatory agencies, while in outdoor environments, concentrations may be up to eleven times greater. Thus, monitoring thermal conditions and atmospheric pollution in urban environments is essential to understanding how the population is adapting to the current climate crisis. Based on the findings of this research, it is concluded that urban areas in the ecotonal region of Brazil’s Central-West face increasing challenges related to thermal discomfort, the intensification of heatwaves, and high concentrations of atmospheric pollutants. The integrated analysis of bioclimatic indices, surface temperatures, and fine particulate matter pollution highlights the urgency of adaptation and mitigation strategies at both urban and regional levels. Understanding this urban climate dynamic is crucial for developing effective public policies that minimize the impacts of the climate crisis on the health and well-being of the population, especially the most vulnerable.

MEMBROS DA BANCA:
Interno - 61265003 - ANTONIO FRANCISCO MALHEIROS
Presidente - 118188003 - ERNANDES SOBREIRA OLIVEIRA JUNIOR
Externo à Instituição - 794.154.821-68 - JOÃO BASSO MARQUES - UFMT