Influence of urbanization on land surface temperature in Recife city

Santos, Thiago Oliveira dos; Moura, Geber Barbosa de Albuquerque; Silva, Bernardo Barbosa da; Oliveira, Leidjane Maria Maciel de; Machado, Célia Cristina Clemente

doi:10.1590/s0100-69162013000600016

Cited by 8 publications

(4 citation statements)

References 20 publications

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“…The urban microclimate is impacted by various biophysical elements of the urban environment such as surface materials, city structure, introduction of heat, air pollution, disposition of precipitation and urban vegetation [14,15] dense building developments, landuse changes and plenty other human activities (Hong Kong Observatory, 2018) [16]. Studies have identified several other factors that influence temperature variability such as seasonal variances in solar radiation [17]; anthropogenic emissions (Intergovernmental Panel on Climate Change IPCC, 2018) [18]; weather conditions, latitude, time, topography, stability, wind, cloudiness, snow cover, artificial heat sources and street geometry [19]; seasonal differences in rainfall and prolonged dry or wet seasons [58]; climate change [20]; land use change and urbanisation process [15,[21][22][23][24][25][26][27]; and thermal characteristics of the construction materials in the cities [28].…”

Section: Introductionmentioning

confidence: 99%

Sensations of Air Temperature Variability and Mitigation Strategies in Urban Environments

Sampson

Weli

Nwagbara

et al. 2021

J. Hum. Earth Future

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This study examined sensations of air temperature variability and mitigation strategies in the Niger Delta, Nigeria using the cross-sectional and descriptive research designs. This study purposively selected the Capital Cities of the nine states in the study area; while the simple random sampling technique was used to select the study elements. Taro Yamane (1967) formula was employed in determining the study sample size of 400 which was apportioned to each of the cities based on proportional allocation with respected to the population of the cities, hence forming the basis for the distribution of the survey questionnaire. The results show that majority were aware of the impacts of temperature and rated the temperature in the neighborhood as high, but not aware of the comfort threshold of air temperature. Majority had never taken personal steps to mitigate high temperature and at the same time not satisfied with the level of temperature in their urban environment. Urban growth and rise in population, construction materials of urban surfaces, removal of trees/vegetation, manmade heat, air pollutants emission, congestion of buildings and time of season were found to stimulate high temperatures in the cities. Human discomfort, excessive heat, illness and diseases, soil aridity/lack of water in soil, poor air quality, increase in diseases vectors, increase in energy demand and usage, and dehydration of the body and regular thirst for water were found to be impacts and problems associated with high temperature. The prevailing strategies adopted to mitigate impacts of high temperature were only the use of electric fans (63.50%) and drinking of plenty water (92.50%). Therefore, the study recommends among others that planting and preservation of trees should be encouraged, mass awareness campaign on practices that exacerbate high temperature should be sponsored by the authorities, and regulatory agencies should strictly control urban growth and be committed to the enforcement of environmental policies. Doi: 10.28991/HEF-2021-02-02-02 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Sensations of Air Temperature Variability and Mitigation Strategies in Urban Environments

Sampson

Weli

Nwagbara

et al. 2021

J. Hum. Earth Future

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“…As for the HWs, most of the observation points showed no trend: there were only a few places, mainly in the tropical area, especially around the NE areas known as Mid-North and Sertão, where HWs intensified from 1961 to 2016 (Figure 5b). However, a local warming can be partly potentiated due to industrialization and urbanization (Lin et al, 2016;Dash, 2017); therefore, taking into consideration land-use aspects, it is possible to observe increased air temperatures in some Brazilian cities (Krüger and Givoni, 2007;Santos et al, 2013;Santos, 2014). Urban sprawl and all anthropogenic aspects, such as air pollution generated by cars and industries, the decreased number of green areas, air circulation barriers formed by buildings, among others, should be some of the major concerns of the government.…”

Section: Temporal Analysismentioning

confidence: 99%

The climatology of cold and heat waves in Brazil from 1961 to 2016

Bitencourt

Fuentes

Franke

et al. 2019

Intl Journal of Climatology

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Extreme temperatures have caused various damages to society around the world. In Brazil, an example of that is the impact of cold and heat waves on public health. In order to analyse the temporal and spatial variability of such events, this study applied a single criterion to identify cold and heat waves. The study collected data on the events from daily temperature records from 264 weather stations over 56 years (1961–2016). The following parameters were used to describe each event: frequency, duration, severity, and intensity. The results showed that in all the Brazilian regions the frequency of heat waves increased and that of cold waves decreased between the years 1961 and 2016. The number of heat waves per year, notably, was greater than that of cold waves, and the mean duration of heat waves was about 1 day longer than that of cold waves. Additionally, it was found that cold waves were more severe and intense in areas often reached by cold air masses with temperatures below zero in most of Southern Brazil. In terms of severity and intensity of heat waves, two different configurations were observed: They were more severe in the Southern region and more intense in the Midwestern region of the country, and not so expressive in the Northern and Northeastern regions. Those findings justify the need for continuous updating of public policies focused on sectors often affected by cold and heat.

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“…A redução da cobertura verde, o uso intensivo de combustíveis fósseis e a construção de prédios altos, que atuam como barreiras para a ventilação, podem explicar as ilhas urbanas de calor (Sobral, 2005). No Brasil, um estudo mostrou que a diferença média de temperatura entre o centro e a periferia de uma cidade média (cerca de 1,5 milhão de habitantes) foi de 6 o C (Santos et al, 2013). Já um estudo conduzido na Região Metropolitana do Rio de Janeiro encontrou variabilidades térmicas de até 25 °C entre áreas com diferentes níveis de urbanização (Sena et al, 2014).…”

Section: C) Ilhas Urbanas De Calorunclassified

Como as cidades podem favorecer ou dificultar a promoção da saúde de seus moradores?

2016

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Morar próximo a um parque pode reduzir o risco de infarto do miocárdio, enquanto a exposição à poluição do ar ambiente aumenta o risco. Evidências associam a exposição crônica ao ruído do tráfego ao ganho de peso. Em 2014, mais de mil pessoas morreram no trânsito de São Paulo. No entanto, recomendar que as pessoas fiquem em casa com as janelas fechadas é inviável. A adoção de hábitos saudáveis é favorecida ou dificultada pelo ambiente construído e pelo modo como a cidade está organizada. Além disso, alguns fatores de risco para doenças, como a exposição à poluição do ar, vão além de escolhas individuais e dependem, em grande parte, de ações governamentais. Neste artigo discutimos os aspectos que podem favorecer ou dificultar a promoção da saúde nas cidades, a partir dos tópicos propostos por Rydin et al. (2012).

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Influence of urbanization on land surface temperature in Recife city

Cited by 8 publications

References 20 publications

Sensations of Air Temperature Variability and Mitigation Strategies in Urban Environments

Sensations of Air Temperature Variability and Mitigation Strategies in Urban Environments

The climatology of cold and heat waves in Brazil from 1961 to 2016

Como as cidades podem favorecer ou dificultar a promoção da saúde de seus moradores?

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