Urban Heat Island in the Ljubljana City

Komac, Blaž; Ciglič, Rok; Loose, Alenka; Pavšek, Miha; Čermelj, Svetlana; Oštir, Krištof; Kokalj, Žiga; Topole, Maja

doi:10.1007/978-3-319-10425-6_12

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…Increased ambience temperatures deteriorate the physical well-being of a city's population, as a result of thermoregulatory Sustainability 2017, 9, 122 3 of 20 morning time to having a top speed of around 2-3 m/s in the afternoon (both stations); air humidity was the lowest at that time (both stations). The weak SW wind and low humidity caused low night-time temperatures, especially at the rural station where the UHI intensity rose by 0.5-2 K [17] (pp. 363-365).…”

Section: Introductionmentioning

confidence: 99%

“…The weak SW wind and low humidity caused low nighttime temperatures, especially at the rural station where the UHI intensity rose by 0.5-2 K [17] (pp. 363-365).…”

Section: Introductionmentioning

confidence: 99%

“…Housing development focused on two categories: neighborhoods with apartment blocks for concentration of large-scale population and residential areas on the outskirts with low buildings, corresponding, in was the lowest at that time (both stations). The weak SW wind and low humidity caused low nighttime temperatures, especially at the rural station where the UHI intensity rose by 0.5-2 K [17] (pp. 363-365).…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

et al. 2017

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Abstract:The study conducted in this paper is focused on a predominantly residential area of the City of Ljubljana-Koseze, which is characterized by generally favorable (bio)climatic conditions. Nonetheless, thermal satellite images showed that residential neighborhoods within the Koseze district display unexpected variations in summer temperatures. This observation called into question the benefits of existing bioclimatic features and indicated the need to investigate and compare two neighborhoods with similar urban parameters, with the aim to identify morphological differential characteristics impacting urban heat island (UHI) intensity. By applying the study methodology based on a literature review, surveys of key precedents, detailed mapping in two Koseze locations, in situ measurements, observations and recordings, thermal imagery, and the analyses of statistical data, as well as by defining the four main categories of morphological urban parameters-structure, cover, fabric and metabolism, it was concluded that both neighborhoods have common morphological elements mitigating the UHI effect. Additionally, it was found that the neighborhood with higher UHI intensity has several less favorable features, such as busier roads, larger surface of parking corridors, and the existence of underground parking space. The traffic as an element of urban morphology hence represents the main cause of differences among UHI levels in the two Koseze neighborhoods.

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Section: Introductionmentioning

confidence: 99%

“…The weak SW wind and low humidity caused low nighttime temperatures, especially at the rural station where the UHI intensity rose by 0.5-2 K [17] (pp. 363-365).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

et al. 2017

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“…The warming trend in Ljubljana is between 0.3 and 0.4 • C/10 years [27]. As in many other cities, the warming trend in Ljubljana is the result of a combination of climate change and the city's UHI effect that has existed for decades [6,20,21]. Despite the temperate continental climate, Ljubljana has a fairly humid climate.…”

Section: Study Areamentioning

confidence: 99%

“…The intensity of the UHI in Ljubljana is said to have increased, especially after 1950. Komac et al [21] published a study of UHI measurements in Ljubljana as a combination of satellite imagery and a comparison of temperatures and hot days between the city and its surroundings. They demonstrated an increase in the number of hot days and a decrease in the number of cold days in Ljubljana, as well as an internal differentiation of surface warming indicating a surface urban heat island (SUHI).…”

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confidence: 99%

Assessment of Winter Urban Heat Island in Ljubljana, Slovenia

et al. 2023

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Although the urban heat island (UHI) phenomenon is more commonly studied in summer, its influence is also important in winter. In this study, the authors focused on the winter UHI in Ljubljana (Slovenia) and its impact on the urban population, as well as in comparison with a UHI study from 2000. Through a combination of mobile and stationary temperature measurements in different parts of the city, the winter intensity of the UHI in Ljubljana was studied in a dense spatial network of measurements. It was found that the intensity of the winter UHI in Ljubljana decreases as winters become warmer and less snowy. The results showed that the winter UHI in Ljubljana intensifies during the night and reaches the greatest intensity at sunrise. During the winter radiation type of weather, the warmest part of Ljubljana reaches an intensity of 3.5 °C in the evening. In total, 22% of the urban area is in the evening UHI intensity range of 2–4 °C, and 65% of the urban population lives in this range. In the morning, the UHI in Ljubljana has a maximum intensity of 5 °C. The area of >4 °C UHI intensity covers 7% of the urban area, and 28% of the total urban population lives in this area. Higher temperatures in urban centers in winter lead to a longer growing season, fewer snow cover days, lower energy consumption and cold stress, and lower mortality from cold-related diseases compared to the colder periphery.

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Changes in daily air temperatures and precipitation across the Sava River Basin and their correlation with large-scale atmospheric circulations

Ogrin

Milošević

et al. 2022

Theor Appl Climatol

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Urban Heat Island in the Ljubljana City

Cited by 5 publications

References 7 publications

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

Assessment of Winter Urban Heat Island in Ljubljana, Slovenia

Changes in daily air temperatures and precipitation across the Sava River Basin and their correlation with large-scale atmospheric circulations

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