Analysis of thermal discomfort associated with synoptic conditions in the city of Pelotas, southernmost region of Brazil.

Autor: da Costa Trassante F; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil., de Freitas RAP; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil. rosefreitas78@gmail.com., Nedel AS; Faculty of Agronomy, Federal University of Fronteira Sul (UFFS), Campus Cerro Largo, Cerro Largo, RS, Brazil., Machado Machado R; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil., de Medeiros MAF; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil., da Silva Lindemann D; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil., da Silva Nascimento AL; Institute for Space Research (INPE), São José Dos Campos, SP, 12227-10, Brazil., Casagrande F; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil.; Earth System Numerical Modeling Division (DIMNT), National Institute for Space Research (INPE), Cachoeira Paulista, SP, 12630-000, Brazil., de Mendonça LFF; Tropical Oceanography Group (GOAT) Federal University of Bahia - UFBA, Salvador, Brazil., Alonso MF; Faculty of Meteorology, Federal University of Pelotas (UFPEL), Engenheiro Ildefonso Simões Lopes Avenue, Pelotas, RS, 2751, Brazil.
Jazyk: angličtina
Zdroj: International journal of biometeorology [Int J Biometeorol] 2024 Mar; Vol. 68 (3), pp. 463-477. Date of Electronic Publication: 2024 Jan 08.
DOI: 10.1007/s00484-023-02604-2
Abstrakt: Here, we evaluated the influence of outdoor environmental conditions (synoptic weather conditions) on human thermal discomfort in the five macro-regions of Pelotas city, located in the southernmost region of Brazil. To do this, meteorological sensors (HOBO MX2301A) were installed outside the residences to measure the air temperature, dew point temperature, and relative humidity between 18 January and 20 August 2019. Two well-established simplified biometeorological indices were examined seasonally: (i) humidex for the summer months and (ii) effective temperature as a function of wind for the autumn and winter months. Our findings showed seasonal differences related to human thermal discomfort and outdoor environmental conditions. The thermal discomfort was highest in the afternoons during the summer months and at night during the winter months. The seasonal variation in human thermal discomfort was highly associated with the meteorological conditions. In summer, the presence of the South Atlantic Subtropical Anticyclone (SASA) contributed to heat stress. The SASA combined with the continent's low humidity contributed to the perceived sensation of thermal discomfort. In the winter, thermal discomfort was associated with the decrease in air humidity caused by high atmospheric pressure systems, which led to a decrease in both air temperature and air moisture content. Our findings suggest that a better understanding of the complex interplay between outdoor environmental factors and human thermal comfort is needed in order to mitigate the negative effects of thermal discomfort.
(© 2024. The Author(s) under exclusive licence to International Society of Biometeorology.)
Databáze: MEDLINE
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