Climatology of Discomfort Index for Decade in Bandar Lampung, Indonesia

Siami, Lailatus; Ramadhani, Annisa Nur

doi:10.18502/kss.v3i21.4987

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…The HD was first applied in Europe and the United States, where it was used by meteorological organizations to determine the likelihood of heat stress and thermal comfort conditions in a particular area and reported to the public 34 , 35 . The HD represents the warming effect perceived by people due to the lack of evaporation of body moisture, making them feel overwhelmed or strained, usually in summer 36 .…”

Section: Methodsmentioning

confidence: 99%

Analyzing temperature, humidity, and precipitation trends in six regions of Thailand using innovative trend analysis

Kliengchuay,

Mingkhwan,

Kiangkoo

et al. 2024

Sci Rep

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The change of temperature and weather parameters is a major concern affecting sustainable development and impacting various sectors, such as agriculture, tourism, and industry. Changing weather patterns and their impact on water resources are important climatic factors that society is facing. In Thailand, climatological features such as ambient temperature, relative humidity, and precipitation play a substantial role in affecting extreme weather events, which cause damage to the economy, agriculture, tourism, and livelihood of people. To investigate recent serious changes in annual trends of temperature, relative humidity, and precipitation in Thailand, this study used the Mann–Kendall (MK) test and innovative trend analysis (ITA) methods. The MK test showed that all six regions had an upward trend in temperature and humidity index (humidex, how hot the weather feels to the average person), while relative humidity and precipitation showed both upward and downward trends across different regions. The ITA method further confirmed the upward trend in temperature and humidex and showed that most data points fell above the 1:1 line. However, the upward trend in most variables was not significant at the 5% level. The southern and eastern regions showed a significant upward trend in relative humidity and humidex at a 5% level of significance according to the MK test. The output of this study can help in the understanding of weather variations and predict future situations and can be used for adaptation strategies.

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Section: Methodsmentioning

confidence: 99%

Analyzing temperature, humidity, and precipitation trends in six regions of Thailand using innovative trend analysis

Kliengchuay,

Mingkhwan,

Kiangkoo

et al. 2024

Sci Rep

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show abstract

“…These values show that for the hottest areas in all the capitals, the thermal comfort levels are above 20 • C, which is considered above what is comfortable for the population, as shown in (Table 5). Furthermore, when the temperature exceeds 21 • C, less than 50% of the population feels discomfort [45]. Moreover, discomfort is understood as sensations of heat and cold and uncomfortable feelings of unease [46].…”

Section: Thermal Discomfort Indexmentioning

confidence: 99%

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Fernandes,

Ferreira,

Nascimento

et al. 2024

Sustainability

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The lack of a solid methodology defining urban and non-urban areas has hindered accurately estimating the Surface Urban Heat Island (SUHI). This study addresses this issue by using the official national urban areas limit together with a surrounding areas classification to define three different reference classes: the urban adjacent (Ua), the future urban adjacent (FUa), and the peri-urban (PUa), consequently providing a more accurate SUHI estimation on the nine northeastern Brazilian capitals. The land surface temperature was obtained in this study using the Sentinel-3 satellite data for 2019 and 2020. Subsequently, the maximum and average SUHI and the complementary indexes, specifically the Urban Thermal Field Variation Index (UTFVI) and the Thermal Discomfort Index (TDI), were calculated. The UTFVI expresses how harmful the eco-environmental spaces are, with a very strong SUHI for three capitals. In addition, the TDI, with values between 24.6–28.8 °C, expresses the population’s thermal comfort, with six capitals showing a very hot TDI. These findings highlight the need for strategies to mitigate the effects of the SUHI and ensure the population’s thermal comfort. Therefore, this study provides a better SUHI understanding and comparison for the Brazilian northeastern region, which has diverse areas, populations, and demographic variations.

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“…These values show that all the capitals, for their hottest areas, have thermal comfort above 20 ºC, above what is comfortable for the population, as shown in (Table 4). Furthermore, as [44] indicated, the pattern values above 21 °C, less than 50% of the population feels discomfort, which, according to [45], discomfort is understood as sensations of heat and cold, uncomfortable feelings of unease.…”

Section: Thermal Discomfort Indexmentioning

confidence: 99%

Assessment of Urban Heat Island in the Northeastern State Capitals in Brazil Using Sentinel Satellite Data – 3 SLSTR

Fernandes¹,

Ferreira²,

Nascimento³

et al. 2023

Preprint

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The Surface Urban Heat Island (UHI) is caused by the difference in temperature between the urban and its surrounding areas. However, in the scientific literature, there is no solid methodology defining urban and non-urban areas, which is essential to estimate the SUHI with greater accuracy. This study uses the official national urban areas limit, to obtain the SUHI more accurately on the nine northeastern Brazilian capitals. The land surface temperature was obtained using the Sentinel 3 satellite data for the years 2019 and 2020. Afterward, the maximum and average SUHI, and the complementary indexes were calculated, such as the Urban Thermal Field Variation Index (UTFVI) and the Thermal Discomfort Index (TDI) for the urban areas and their surrounding areas. The Maximum and Average SUHI, obtained values between 1.85 and 8.25 and -4.92 and 2.59 degree difference, respectively, proving the SUHI existence in the study areas. The UTFVI, with values between 0.010 and 0.040, expresses how bad the eco-environmental spaces of urban are. The TDI, with values between 24.61 and 28.89 ºC, expresses the population’s thermal comfort. Therefore, this study provides a better understanding of the surface UHI pioneeringly for the Brazilian Northeast Region.

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Climatology of Discomfort Index for Decade in Bandar Lampung, Indonesia

Cited by 6 publications

References 6 publications

Analyzing temperature, humidity, and precipitation trends in six regions of Thailand using innovative trend analysis

Analyzing temperature, humidity, and precipitation trends in six regions of Thailand using innovative trend analysis

Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data

Assessment of Urban Heat Island in the Northeastern State Capitals in Brazil Using Sentinel Satellite Data – 3 SLSTR

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