Long-term analysis of the urban heat island effect using multisource Landsat images considering inter-class differences in land surface temperature products

Xu, Xiong; Pei, Haoyang; Wang, Chao; Xu, Qian; Xie, Haibo; Jin, Yanmin; Feng, Yongjiu; Tong, Xiaohua; Xiao, Changjiang

doi:10.1016/j.scitotenv.2022.159777

Cited by 23 publications

(13 citation statements)

References 22 publications

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“…The UHI effect has attracted substantial attention owing to its far‐reaching consequences on the local microclimate, energy consumption, vegetation growth, and the health status of urban dwellers (Chakraborty et al., 2022; Cuerdo‐Vilches et al., 2023; Ho et al., 2023; X. Li et al., 2019; W. Liu et al., 2016; X. Peng et al., 2023; X. Yang et al., 2020). Thermal infrared (TIR) remote sensing techniques implemented on satellite observations can retrieve spatially continuous urban surface temperatures (Z. L. Li et al., 2013; Wan, 2014; X. Xu et al., 2023; Zheng et al., 2019). Hence, TIR land surface temperature (LST) observations have been widespread utilized in the exploration of surface UHI (SUHI) effect (Chakraborty & Lee, 2019; Clinton & Gong, 2013; Cui et al., 2021; Gui et al., 2019; S. Peng et al., 2012; Q. Yang et al., 2021; S. Zhao et al., 2016; D. Zhou et al., 2014, 2016, 2019; B. Zhou et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Satellite Clear‐Sky Observations Overestimate Surface Urban Heat Islands in Humid Cities

Yang,

Xu,

Wen

et al. 2024

Geophysical Research Letters

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Satellite‐based thermal infrared (TIR) land surface temperature (LST) is hindered by cloud cover and is applicable solely under clear‐sky conditions for estimating surface urban heat island intensity (SUHII). Clear‐sky SUHII may not accurately represent all‐sky conditions, potentially introducing quantitative biases in assessing urban heat islands. However, the differences between clear‐sky and all‐sky SUHIIs and their spatiotemporal variations are still poorly understood. Our analysis of over 600 global cities demonstrates that clear‐sky SUHII is mostly higher than all‐sky SUHII, particularly in summer, daytime, and precipitation‐rich regions. Besides, clear‐sky SUHII typically exhibits stronger seasonal and diurnal contrasts than all‐sky SUHII, especially for cities located in humid regions. These discrepancies can be attributed mainly to the increased missing LST data caused by cloud enhancement in urban areas. Our findings highlight the tendency for clear‐sky observations to overestimate SUHII, providing valuable insights for standardizing the quantification of surface urban heat islands.

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Section: Introductionmentioning

confidence: 99%

Satellite Clear‐Sky Observations Overestimate Surface Urban Heat Islands in Humid Cities

Yang,

Xu,

Wen

et al. 2024

Geophysical Research Letters

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“…23 Land surface temperature (LST) derived from Landsat 8 Thermal Infrared Sensors (TIRS) has been extensively used to demarcate the spatial boundaries of the urban heat island effect. [24][25][26] Various studies have assessed the associations between urban heat island effects and exposure of vulnerable populations to heat-related health risks. 16,[27][28][29] For instance, an in-depth analysis of the causes of the high mortality rates of the 1995 Chicago heat wave study found that disproportionate exposure of socially vulnerable groups, social isolation of seniors, and institutional neglect of poor and racialized neighborhoods have contributed to the observed disastrous outcomes.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Summer heat, historic redlining, and neighborhood walking among older adults: 2017 National Household Travel Survey

Mitsova,

Besser,

2024

Preprint

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No known studies have examined the relationships between urban heat islands, historic redlining, and neighborhood walking in older adults. We assessed whether: 1) individual and neighborhood characteristics (including redlining score) differ by neighborhood summer land surface temperature (LST); 2) higher LST is associated with less neighborhood walking, and whether associations differ by historic redlining score; and 3) neighborhoods with discriminatory redlining scores have greater LSTs. We used data on 3,982 ≥65-year olds from the 2017 National Household Travel Survey. Multivariable negative binomial and linear regressions tested associations between LST z-score (comparing participant’s neighborhood LST to surrounding region’s LST) and self-reported neighborhood walking, and the association between living in neighborhoods redlined as “definitely declining” or “hazardous” (versus “still desirable”/“best”) and LST z-score. LSTs were higher for those in neighborhoods with higher area deprivation scores and more African American/Black residents. Older adults living in neighborhoods with higher summer LST z-scores had fewer minutes of neighborhood walking/day. This association seemed limited to individuals with neighborhood redlining scores of “still desirable”/“best”. Neighborhood redlining scores of “definitely declining” or “hazardous” (versus “still desirable” and “best”) were associated with greater neighborhood summer LSTs. Overall, these findings suggest that historically redlined neighborhoods may more often experience urban heat island effects, and older adults living in hotter neighborhoods may less often engage in neighborhood walking. Future work is needed to elucidate the impact of extreme heat on health promoting behaviors such as walking and the types of interventions that can successfully counteract negative impacts to historically disadvantaged communities.

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“…As part of the impervious surface, the urban streets have the features of fast heat absorption and small heat capacity. When urban streets absorb a significant amount of solar radiation, their temperature will rise rapidly, further intensifying the urban heat island effect [ 13 ]. Hence, it is of great significance to improve the thermal environment of urban streets.…”

Section: Introductionmentioning

confidence: 99%

Study on the Relationship between Urban Street-Greenery Rate and Land Surface Temperature Considering Local Climate Zone

Wang

Ding

et al. 2023

IJERPH

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Relationship exploration between the street-greenery rate (SGR) of different street types and land surface temperature (LST) is of great significance for realizing regional sustainable development goals. Given the lack of consideration of the local climate zone concept (LCZ), Chongqing’s Inner Ring region was selected as a case to assess the relationship between SGR and LST. Firstly, the LST was retrieved based on Landsat 8 imagery, which was calibrated by the atmospheric correction method; next, the street-greenery rates of different streets were calculated based on the semantic segmentation method; finally, street types were classified in detail by introducing LCZ, and the relationship between SGR and LST was investigated. The results showed that: (1) The LST spatial distribution pattern was closely related to human activity, with the high-temperature zones mainly concentrated in the core commercial areas, dense residential areas, and industrial cluster areas; (2) The average SGR values of expressways, main trunk roads, secondary trunk roads, and branch roads were 21.70%, 22.40%, 24.60%, and 26.70%, respectively. The level of SGR will decrease when the street width increases; (3) There is a negative correlation between the SGR and the LST in most streets. Among them, the LST of secondary trunk roads in low-rise and low-density built-up areas with a south-north orientation had a strong negative correlation with the SGR. Moreover, the wider the street, the higher the cooling efficiency of plants. Specifically, the LST of streets in low-rise and low-density built-up areas with south-north orientation may decrease by 1°C when the street-greenery rate is increased by 3.57%.

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Long-term analysis of the urban heat island effect using multisource Landsat images considering inter-class differences in land surface temperature products

Cited by 23 publications

References 22 publications

Satellite Clear‐Sky Observations Overestimate Surface Urban Heat Islands in Humid Cities

Satellite Clear‐Sky Observations Overestimate Surface Urban Heat Islands in Humid Cities

Summer heat, historic redlining, and neighborhood walking among older adults: 2017 National Household Travel Survey

Study on the Relationship between Urban Street-Greenery Rate and Land Surface Temperature Considering Local Climate Zone

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