Temat: heat island - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Urban Heat Island in Białystok
Autorzy:: Czubaszek, R.
Wysocka-Czubaszek, A. J.
Powiązania:: https://bibliotekanauki.pl/articles/123088.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: urban heat island
Białystok
city climate
Opis:: The aim of the study was to investigate the formation intensity of the urban heat island (UHI) in Białystok, a relatively small city in north-eastern Poland. The UHI development was determined on the basis of meteorological data obtained from two weather stations of the Regional Inspectorate for Environmental Protection in Białystok, one located in the city center, and the other on its outskirts. The measurements of temperature gathered by automobile traverses along streets running from the city limits through the center were carried out in order to provide spatial diversity of the studied phenomenon. The results indicated that UHI in Bialystok is very clear. The intensity of this phenomenon changes in the daily cycle, with the peak in the evening. During the year the heat island is the most pronounced in the spring.
Źródło:: Journal of Ecological Engineering; 2016, 17, 3; 60-65
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Assessing the Impact of Wind Conditions on Urban Heat Islands in Large Australian Cities
Autorzy:: Al-Obaidi, Ilham
Rayburg, Scott
Półrolniczak, Marek
Neave, Melissa
Powiązania:: https://bibliotekanauki.pl/articles/2028031.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: climate change
heat island
wind speed
wind direction
seasonal UHI
diurnal UHI
Opis:: Urban regions are well known to be warmer than the outlying surrounding regions: this phenomenon is termed an Urban Heat Island (UHI). Depending upon its severity, an UHI can influence human health, the condition of urban vegetation, as well as air and water quality leading to a general decline in the living conditions of the affected urban environments and residents. Some studies have shown that prevailing weather conditions, like wind patterns, can influence UHI magnitudes. These studies suggest that wind speeds may be inversely related to UHI magnitude. However, long-term and high frequency weather and temperature measurements are exceedingly rare, so the exact nature of the relationship between wind speeds and directions as well as UHI magnitudes remain unknown. In order to address this problem, this study investigates how UHI magnitudes in five Australian cities affect wind speed and wind direction. The results of this study revealed that urban–non-urban temperature differences are most pronounced under calm weather conditions. The UHI intensity weakened as wind velocity increased: strong significant negative correlations were found between the mean UHI intensity and mean wind speed magnitudes. The results show that the greatest UHI intensities are recorded when wind is weak (less than $2 ms^{-1}$), while the lowest magnitudes are found when wind speeds exceed $6 ms^{-1}$. Further, the results show that the critical wind speed value, above which the strength of the UHI is considerably minimized, is around $4–5 ms^{-1}$. In addition, the study shows that wind direction in each city is a critical driver factor that determines the intensity of the UHI effect. When winds originate from dry environments, they favour high UHI intensities at all wind speeds, while the winds from the ocean side of coastal cities tend to cool urban regions, reducing UHI intensities or even promoting the urban cool island formation.
Źródło:: Journal of Ecological Engineering; 2021, 22, 11; 1-15
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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