Air temperature and humidity and human comfort index of some city parks of Mexico City

1991 ◽  
Vol 35 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Victor L. Barradas
2017 ◽  
Vol 5 (2) ◽  
pp. 78
Author(s):  
Maria Immaculata C. Dwi Sulistyana ◽  
Slamet Budi Yuwono ◽  
Rusita Rusita

The urban forest is part of public green open space which is formed by trees alliance that affect the temperature and humidity and reduce the wind speed so could provide convenience for the surrounding population. The aim of this research was to identify the species of the trees, to know the convenience based on THI and the public perception. Trees vegetation data inside urban forest were collected by census methods, temperature and humidity data were collected by measurement. Perception data were collected through interview using questionnaire. Descriptive analysis was used to analyzed the trees vegetation and visitors’ perception. The comfort level were analyzed by using Nieuwolt’s comfort index.  The results showed the influence of the density of vegetation to temperature and humidity affected the level of comfort. The dense canopy area had the air temperature at 29,43oC and humidity at 78,02%. The rare canopyarea had the air temperature at 30,49oC and humidity at 75,23%. Based on the THI, Linara Urban Forest was classified uncomfortable with values > 26. The perceptions of visitors to the Linara Urban Forest was in comfort categories. Keywords: the comfort level, urban forest, vegetation’s density.


2019 ◽  
Author(s):  
FERDY APRIHATMOKO

The presence of green open space in urban area is very important in influencing the condition of human comfort. The objective of this research is to analyze the relationship of green open space to air temperature and human comfort in Yogyakarta. The method used in determining the comfort index is the Temperature Humidity Index (THI) which combines the factor of air temperature and relative humidity. The calculated THI value is obtained from four green open space categories and they are point green open space, line green open space, area green open space, and non-green open space. The result obtained from this research showed that the air temperature in green open space is lower than the air temperature in non-green open space. Green open space has a positive effect in lowering air temperature so the place with the green open space gives more comfortable conditions than the place with non-green open space. The place with more green open space will have lower air temperature and give more comfortable condition. Based on this research, Yogyakarta is included in partly uncomfortable category so addition of green open space is needed.


2017 ◽  
Vol 14 (1) ◽  
pp. 237-243 ◽  
Author(s):  
Lei Zhang ◽  
Jingyuan Zhao ◽  
Jiaping Liu ◽  
Ming Chang

This study aimed to analyze the winter indoor thermal environment of collection multi-layer settlement residential building in China’s western mountain grassland area. The method of analysis is field testing and data calculation, include indoor air temperature and humidity, outdoor air temperature and humidity, thermal comfort index. The result shows the relationship between indoor thermal environment, envelope materials, heating methods, location of rooms and building type. In addition, the influence was quantified in 0~11 °C in winter. Finally, advice put forward to promote the indoor thermal environment.


2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Hanifa Marisa

An investigation had been done to Tetragonula (Tetragona) sp nest at Indralaya, South Sumatra to describe the Tetragonula sp nest that use streetlight pole as nest medium during April - May 2019. Purpossive sampling is used to select the target nest. Two streetlight pole found be used by Tetragonula sp as their home. The coordinate of location, heght from ground surface, diameter of streetlight pole, air temperature and humidity, and floral species around nest, were noted. Spot coordinate are S 30 14’ 19.2498’’ and E 1040 39’ 15,3288’’ ; 1,5 m above the ground surface, 12 cm diameter pole, highest air temperature was 35 o C at daylight (April and May 2019), 80 – 90 % humidity at April-May 2019; which Switenia macrophyla, Hevea brasiliensis, Zea mays, and Citrullus lanatus floral species are planted around. Air temperature in the pole is very high, around 40 0 C during daylight.


2012 ◽  
Vol 18 (4) ◽  
pp. CR201-CR208 ◽  
Author(s):  
Jerrold S. Petrofsky ◽  
Lee Berk ◽  
Faris Alshammari ◽  
Haneul Lee ◽  
Adel Hamdan ◽  
...  

2021 ◽  
Author(s):  
Yuanfeng Cui ◽  
Leiqiu Hu ◽  
Zhihua Wang ◽  
Qi Li

Abstract The spatiotemporal characteristics of air temperature and humidity mediated by urban bluespace are investigated using a combination of dense network of climatological observations in a medium-sized US city, computational fluid dynamics and analytical modeling approaches. Both numerical simulation and observational results show that the rate of change of hourly averaged air temperature and humidity at 3.5 m over urban areas peaks two hours after sunset, while it decreases with time monotonically over greenspace, indicating different impacts due to presence of urban lakes. The apparent temperature decreases with distance to lakes in urban area due to higher near-shore humidity. This highlights that urban lakes located near city center can deteriorate the nighttime cooling effects due to elevated humidity. Finally, two analytical models are presented to explain the connection between the surface and air temperature as well as the spatial variation of air temperature and humidity adjacent to the urban lakes. These simplified models with parameters being inferred from the network of measurements have reasonably good performance compared to the observations. Compared to other sophisticated numerical simulations, these analytical models offer an alternative means that is easily accessible for evaluating the efficacy of bluespace on urban nocturnal cooling.


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