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:: Volume 9, Issue 2 (Spring 2022) ::
Environ. Health Eng. Manag. 2022, 9(2): 165-176 Back to browse issues page
Trend analysis of Humidex as a heat discomfort index using Mann-Kendall and Sen’s slope estimator statistical tests
Gholamabbas Fallah Ghalhar , Somayeh Farhang Dehghan , Mehdi Asghari
Corresponding author: Department of Occupational Health and Safety Engineering, School of Public Health, Arak University of Medical Sciences, Arak, Iran , m.asghari2011@gmail.com
Abstract:   (2038 Views)
Background: The aim of this research was to assess the Humidex (HD) trends as a thermal discomfort index by analyzing meteorological data during a 30 year period of summertime in Iran.
Methods: For this purpose, data regarding average temperature and relative humidity were collected daily from 40 different synoptic meteorological stations during a 30-year statistical period (1985-2014). The HD index was calculated based on temperature and relative humidity according to an equation introduced by Masterton and Richardson. The Mann-Kendall and Sen’s slope tests were performed to analyze the changing trend of the HD.
Results: Based on the findings, in 72% of the meteorological stations, the HD followed an upward trend, so that 40% of them was statistically significant. The changing trends in temperature during summertime throughout the studied years fluctuated greatly but generally, in many regions such as the arid, semi-arid, and humid regions, this trend was mostly incremental. Also, the changing trends in relative humidity in all regions was decremental throughout the years under study.
Conclusion: The changing trend of the HD, which is based on temperature and humidity, was incremental in arid and semi-arid regions and decremental in the Mediterranean and humid regions.
Keywords: Humidity, Temperature, Meteorology, Data analysis, Iran
Full-Text [PDF 2098 kb]   (1389 Downloads)    
Type of Study: Original Article | Subject: General
Received: 2022/05/15 | Accepted: 2022/03/26 | Published: 2022/06/22
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Ethics code: IR.ARAKMU.REC.1398.069



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Fallah Ghalhar G, Farhang Dehghan S, Asghari M. Trend analysis of Humidex as a heat discomfort index using Mann-Kendall and Sen’s slope estimator statistical tests. Environ. Health Eng. Manag. 2022; 9 (2) :165-176
URL: http://ehemj.com/article-1-950-en.html


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Volume 9, Issue 2 (Spring 2022) Back to browse issues page
Environmental Health Engineering And Management Journal Environmental Health Engineering And Management Journal
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