Performance of Green Areas in Mitigating the Alteration of Land Surface Temperature in Urban Zones of Lima, Peru

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(8), P. 1323 - 1323

Published: April 8, 2025

Urbanization in large cities has altered the urban thermal balance, creating heat islands. In this context, green areas are crucial regulating climate. This study uses remote sensing data to evaluate their performance using fractional vegetation cover (FVC) and its impact on land surface temperature (LST) Metropolitan Lima, Peru, between 1986 2024. The spatial temporal relationship FVC LST is analyzed, districts classified based effectiveness regulation. Mann–Kendall test was applied identify trends along with a Spearman correlation analysis clustering group according cooling of areas. results show that expansion increased by an average 6.43 °C since 1990, there significant negative (p < 0.001) LST, indicating positive impacts at level. However, it does not reduce suggests that, while effective locally, insufficient counteract overall warming over time. Based characteristics, have been into four groups: those well-preserved areas, such as La Molina San Isidro, which lower compared where urbanization replaced vegetation, Carabayllo Lurigancho (Chosica). Finally, highlights importance integrating area management planning mitigate promote sustainable development.

Language: Английский

---

Sprawl or compactness? How urban form influences urban surface temperatures in Europe

City and Environment Interactions, Journal Year: 2022, Volume and Issue: 16, P. 100091 - 100091

Published: Nov. 9, 2022

Language: Английский

---

Spatio-temporal analysis of the urban green infrastructure of the city of Granada (Spain) as a heat mitigation measure using high-resolution images Sentinel 3

Urban forestry & urban greening, Journal Year: 2023, Volume and Issue: 87, P. 128061 - 128061

Published: Aug. 10, 2023

At present, and motivated by a substantial growth of the population, considerable expansion urban areas is taking place through modification land uses. These changes, together with global warming extreme weather events, produce increases in temperature earth's surface deterioration environment that affects people's quality life. The green cities are upheld as one best for adapting to such phenomena, since they help lower outdoor temperatures. In this research, using high-resolution Sentinel 3 satellite images TsHARP algorithm, Land Surface Temperature (LST) Park Cool Island (PCI) were obtained at resolution 10 meters over city Granada. objective was analyze relationship between surface, PCI effect cooling distance. turn, each eight studied, following variables taken into account included statistical analysis known data panel: normalized difference vegetation index, vegetal proportion, sky view factor, landscape shape model digital elevation, wind solar radiation. Our results report diurnal LST decreases 1 K night 0.6 compared areas. There moreover correlation size areas, decrease generate, distance minimizer effect.

Language: Английский

---

Effects of urban, peri-urban and rural land covers on plant functional traits around Bogotá, Colombia

Urban Ecosystems, Journal Year: 2023, Volume and Issue: 27(1), P. 251 - 260

Published: Oct. 6, 2023

Abstract The Global South has suffered an accelerated population and urban growth. This created multiple impacts at the regional level such as erosion, soil degradation biodiversity loss, well temperature increase in cities causing heat islands. Bogotá, capital of Colombia, is one largest last five decades undergone a rapid transition, impacting surrounding ecosystems. However, little known about how urbanization affects local flora. To understand plants are responding adapting to processes city we used land cover gradient urban, peri-urban rural areas, four plant functional traits (leaf area [LA], specific leaf [SLA], dry matter content [LDMC] wood density [WD]). We analyzed 16 species shared least two covers. Although areas had higher temperatures LDMC lower SLA values than there were no significant differences between Some showed changes covers, indicating that species-specific response urbanization. Considering need for prioritize promote cooling exhibit resistance stress, capacity adapt climate change, it essential include possessing different combinations traits.

Language: Английский

---

Mitigating Effect of Urban Green Spaces on Surface Urban Heat Island during Summer Period on an Example of a Medium Size Town of Zvolen, Slovakia

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(18), P. 4492 - 4492

Published: Sept. 8, 2022

Climate change affects the urban population’s health and quality of life. Urban green spaces (UGS) underpin several essential ecosystem services, amongst them climate regulation. vegetation mitigates high temperatures and, thus, reduces heat stress for residents. The study aimed to verify whether Surface Heat Island (SUHI) effect manifests itself even in a medium size town (Zvolen, Slovakia) surrounded by agricultural forested landscape quantify temperature mitigating spaces. Land surface (LST) SUHI distribution were derived from Landsat data during summer months 2010–2021. To statistically prove cooling vegetation, we tested (by one-way ANOVA) LST within three zones Zvolen municipality defined Copernicus imperviousness density data: (a) dense area (31–100% impervious surfaces), (b) discontinuous (1–30% (c) (0% open land surrounding surfaces). results showed statistical difference between all areas (all zones) land. Moreover, UGS was different compared other zones. mean through years 2010–2021 3.5 °C, with maximum 4.9 °C minimum 1.7 favor varied studied period. warmer weather, higher difference, while at end August, on notably colder day, there no significant them. confirmed that are significantly cooler hot days, they can mitigate local climate.

Language: Английский

---