Valuation of the human thermal discomfort index for the five Brazilian regions in the period of El Niño-Southern Oscillation (ENSO)

Diniz, Fernanda Rodrigues; Iwabe, Clara Miho Narukawa; Piacenti-Silva, Marina

doi:10.1007/s00484-018-1622-3

Cited by 3 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar studies were conducted in Brazil in relation to the El Niño-Southern Oscillation (ENSO) and its influence on the climate of this region (Grimm et al 1998;Kane 1997;Berlato et al 2005). Diniz et al (2019) shows that El Niño increases the discomfort due to the heat while La Niña causes them to decrease. Studies in this direction are important since these phenomena that are related to macrooscillation process directly affect the health of the population in the regions.…”

Section: Introductionmentioning

confidence: 54%

Influence of NAO on forming the UTCI index in Kłodzko

Głogowski

Bryś

Bryś³

2020

Theor Appl Climatol

View full text Add to dashboard Cite

The aim of this paper is to understand the role of the macrocirculation factor in shaping the dynamics of long-term bioclimatic conditions, with reference to Kłodzko in the Polish part of the Central Sudetes. The variability of bioclimatic conditions in Kłodzko for the period 1966–2017 was analysed, exposing its local specificity. The Universal Thermal Climate Index (UTCI) was taken as an indicator of the analysed bioclimatic features. The influence of the North Atlantic Oscillation (NAO) on the variability of this index and its constituent meteorological elements, e.g. air temperature, vapour pressure, wind speed, and solar conditions, was examined. On the basis of the winter NAO Hurrell coefficient, the analysed years were divided into two opposing groups representing either a negative or positive Hurrell index. A comparison between these two year-groups for the mean values of UTCI and the examined meteorological elements showed a clear intergroup difference in these values. Except for cloudiness, the importance of the macrocirculation genesis of NAO was verified by the statistically significant correlation between the Hurrell index on the one hand and the tested UTCI index and its constituent meteorological elements on the other.

show abstract

Section: Introductionmentioning

confidence: 54%

Influence of NAO on forming the UTCI index in Kłodzko

Głogowski

Bryś

Bryś³

2020

Theor Appl Climatol

View full text Add to dashboard Cite

show abstract

“…No Brasil, existem diversos estudos sobre os impactos do El Niño no país, seja em relação à mudança no regime de precipitação, temperatura do ar e conforto térmico humano (Moura et al, 1998;Sansigolo et al, 2000;Berlato et al, 2005;Pereira et al, 2011;Diniz et al, 2018). De acordo com o estudo de Sansigolo et al (2000), o El Niño altera o regime de precipitação das regiões brasileiras, fazendo com que ocorra redução de chuvas nas regiões Norte e Nordeste, e um aumento nas regiões Sul e Sudeste do Brasil.…”

Section: Introductionunclassified

“…As variações climáticas proporcionadas pelo fenômeno El Niño, além de fornecerem condições propícias para o aumento de incêndios, também podem provocar desconforto térmico na sociedade (Diniz et al, 2018). O estudo de Diniz et al (2018) mostrou que climatologicamente durante eventos de El Niño é possível observar alterações na escala de conforto térmico humano, sendo que há um aumento, apesar de pequeno, para o desconforto devido ao calor em todo o país, principalmente durante eventos considerados de forte intesidade.…”

Section: Introductionunclassified

The Impact of El Niño on Fire Outbreaks and Human Thermal Discomfort in Brazil in the Period Between Summer of 2014/2015 until the Autumn of 2016

et al. 2019

View full text Add to dashboard Cite

ResumoO El Niño influencia os regimes de temperatura e precipitação do Brasil, causando períodos de seca e excesso de chuva em algumas regiões. Em períodos secos, os focos de queimadas naturais no Brasil tendem a aumentar principalmente no Centro-Oeste e Nordeste. Períodos de secas e altas temperaturas, além de favorecerem condições para incêndios naturais, também podem causar desconforto térmico na população. Nesse contexto, objetivou-se analisar os impactos causados pelo El Niño, entre o verão de 2014/2015 e o outono de 2016, na ocorrência de incêndios e desconforto térmico da população no Brasil. Os resultados mostraram que a estação da primavera de 2015 se mostrou a mais seca e mais quente, principalmente nas regiões Norte, Nordeste, Centro-Oeste e Sudeste. Além disso, a primavera de 2015 registrou o maior desconforto térmico devido ao calor e maior número de focos de incêndios no Brasil, cuja média de incêndios (1998 a 2014) é de 34.376 focos, mas que registrou 49.849 focos.

show abstract

Influence of Vegetation on Outdoor Thermal Comfort in a High-Altitude Tropical Megacity: Climate Change and Variability Scenarios

2022

View full text Add to dashboard Cite

The objective of this paper is to show a study on the influence of vegetation on the outdoor thermal comfort (OTC) of a high-altitude tropical megacity. The OTC is evaluated by the PET (Physiological Equivalent Temperature) index and by establishing three simulation scenarios: (i) Current OTC, (ii) OTC under RCPs 4.5 and 8.5 (Representative Concentration Pathway), and (iii) OTC under RCPs and ENSO (El Niño–Southern Oscillation). The results show that the hourly variation range of the current OTC in urban areas with vegetation is greater (+3.15 °C) compared to impermeable areas. Outdoor thermal stress due to cold in vegetated areas is 1.29 °C lower compared to impervious areas. The effect of vegetated coverage on the improvement of urban OTC increases as the phenomenon of global warming intensifies. On average, in the current, RCP4.5, and RCP8.5 scenarios for each 10% increase in urban vegetation coverage, an increase of 0.22, 0.24, and 0.28 °C in OTC is obtained, respectively. The hourly variation range of the PET index increases during the ENSO scenario (vegetated areas: +16.7%; impervious areas: +22.7%). In the context of climate change and variability, this study provides a reference point for decision-makers to assess possible planning options for improving OTC in megacities.

show abstract

Valuation of the human thermal discomfort index for the five Brazilian regions in the period of El Niño-Southern Oscillation (ENSO)

Cited by 3 publications

References 23 publications

Influence of NAO on forming the UTCI index in Kłodzko

Influence of NAO on forming the UTCI index in Kłodzko

The Impact of El Niño on Fire Outbreaks and Human Thermal Discomfort in Brazil in the Period Between Summer of 2014/2015 until the Autumn of 2016

Influence of Vegetation on Outdoor Thermal Comfort in a High-Altitude Tropical Megacity: Climate Change and Variability Scenarios

Contact Info

Product

Resources

About