Does urban climate follow urban form? Analysing intraurban LST trajectories versus urban form trends in 3 cities with different background climates

Lemoine-Rodríguez, Richard; Inostroza, Luis; Zepp, Harald

doi:10.1016/j.scitotenv.2022.154570

Cited by 31 publications

(15 citation statements)

References 56 publications

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“…A good number of studies focused on LST trends in the landscapes [17]- [32], along with other trends like evapotranspiration [33,34], rainfall and vegetation [35], and water balance components like precipitation, snow cover and stream flows [34]. Studies of MODIS LST trends in urban areas or cities, especially larger in size, were also found [36]- [39]. In the urban/city, studies focused on UHI-urban heat island [40]- [43], SUHI-surface UHI [44]- [50], and urban expansion [51].…”

Section: A Modismentioning

confidence: 99%

Opportunities and Challenges of Spaceborne Sensors in Delineating Land Surface Temperature Trends: A Review

et al. 2023

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Understanding the land surface temperature (LST) trends is crucial for policymakers and stakeholders to develop adaptation and mitigation strategies suitable for a sustainable environment coping in the face of climate change. This article presents a systematic review of the studies related to delineating spaceborne sensor based LST trends, including information on the instruments and constellations of satellites (missions) that provide thermal infrared (TIR) and passive microwave (PMW) observations. About 99% of the studies used TIR, where 76% were MODIS (onboard Terra/Aqua) observations. Opportunities, challenges, and research gaps for using the TIR and PMW observations were also explored, with instruments onboard either polar-orbiting or geostationary satellites. We identified that calibrated dataset (e.g., processed, harmonized, and standardized) is extremely limited for each constellation, with multiple satellites and instruments, to make it fully useful for the entire mission period. A few problematic methodological concepts were identified, including using a few images in a longer time series. Using only a few images, acquired on different calendar months in different years, would not provide the true annual trends over the study period because they can be influenced by seasonal variations. To estimate the warming or cooling daytime, nighttime, or diurnal LST trends, the use of MODIS observations could be useful, even though it does not acquire images during the maximum or minimum temperature in a daily cycle. This article indicated further investigations into those research gaps and recommended directions to overcome most of these limitations.

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Section: A Modismentioning

confidence: 99%

Opportunities and Challenges of Spaceborne Sensors in Delineating Land Surface Temperature Trends: A Review

et al. 2023

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“…Thermal infrared remote sensing data is the basis for spatio-temporal urban hotspot analysis, contributing to more effective and targeted urban planning processes [43]. Urban hotspots were identified and calculated in conjunction with urban form dynamics and LST trajectories [44]; urban sprawl and LULC change patterns in the case of Indian metropolises [45]; as well as local climate zones to formulate potential heat mitigation zones during the urban planning phase [46]; or predicting urban hotspots contributes to sustainable resource management in future smart cities [47], to name just a few examples of the application of this phenomenon in various areas of urban research. Finally, the literature uses a generally accepted categorization of UTFVI zones [48] and converts these values into ecological assessment indices based on the local LST characteristics, ranging from the 'excellent' to 'worst' categories [49].…”

Section: Introductionmentioning

confidence: 99%

Spatial-temporal analysis of urban climate dynamics in major Hungarian cities

Buzási,

Beszedics-Jäger,

Hortay

2024

Environ. Res. Commun.

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Increasing heatwaves are making cities and their populations more vulnerable, parallel to urban sprawl and the aging population in Hungary. The increasing number of hot days is predicted to worsen urban climate anomalies at the local scale, which, in parallel with changing land use patterns, may contribute to a significant increase in vulnerability to heatwaves. Local stakeholders and decision-makers need to understand the critical role of spatiotemporal land use – land cover (LULC) patterns and urban climate aspects to address relevant challenges for urban development. The current literature does not contain a synthesis analysis of major Hungarian cities that includes urban climate and sustainability findings hand by hand; therefore, this study aims to analyze LULC patterns, urban hotspots and surface urban heat island effects. In addition, the Normalized Difference Vegetation Index (NDVI) was determined as an important indicator for assessing the health and density of green spaces in major Hungarian cities from 2006 to 2018 using remote sensing data. Our results show that each city experienced significant urban sprawl, while above-average NDVI areas decreased over time. The average increase in the share of built-up areas was 1.3% from 2006 to 2018, while the calculated average decline in agricultural areas was 2%, so the expansion of residential areas and artificial areas is not the only driving force of this shrinking trend in agricultural areas. Furthermore, we found that urban hotspots are generally concentrated in industrial areas and represent new spaces of heat islands on the outskirts of cities. Székesfehérvár has the most intense industrial heat islands, with the largest proportion of urban hotspots (approximately 3.5% of the total area) concentrated in industrial zones. Our study contributes to uncovering inter-urban processes of land use patterns and urban climate issues in major Hungarian cities, moreover revealing sustainability-related issues from a lock-in perspective.

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“…El análisis de dinámicas de cambio con sensores remotos puede hacer una potente contribución para monitorear el desarrollo urbano y sus implicaciones (Figura 1; Inostroza et al, 2013;. En la última década, un número creciente de trabajos científicos ha demostrado que el uso de imágenes de satélite y métodos de análisis geoestadístico permite identificar las tendencias y la heterogeneidad espacial de distintas dinámicas interrelacionadas de las ciudades, tales como la expansión física urbana, los cambios en la cobertura vegetal y la evolución de las islas de calor urbano (K. Huang et al, 2019;Lemoine-Rodríguez, Inostroza y Zepp, 2022a). En un escenario ideal, la información generada mediante este tipo de estudios debe ser considerada por los tomadores de decisiones para planear el desarrollo de las ciudades con base en evidencia empírica.…”

Section: Introductionunclassified

¿Es detectable empíricamente la protección normativa del territorio? Análisis de las tendencias de temperatura y vegetación del área norte de Bogotá con sensores remotos

Inostroza,

Lemoine Rodriguez

2024

Investigaciones Geográficas

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Este trabajo presenta un análisis de las tendencias de desarrollo urbano del sector norte de Bogotá, en un área de 6930 hectáreas que incluye el Plan de Ordenamiento Zonal del Norte (POZN) y parte de la reserva natural Thomas Van der Hammen (RTVH). El plan propuesto por la Alcaldía mediante el Decreto 088 de 2017 intenta dar coherencia a un desarrollo urbano que ha ocurrido de facto y con importantes consecuencias ecológicas y sociales mientras que la RTVH intenta proteger las características ecológicas de este sector entre los cerros y el rio Bogotá. El método consistió en analizar series de tiempo de temperatura de la superficie y de vegetación mediante técnicas de teledetección e indicadores radiométricos para identificar los cambios estructurales que ha experimentado el sector en términos de sus componentes biofísicos. Los resultados del análisis ponen en evidencia que el proceso de urbanización instalado en el sector norte de Bogotá es el determinante de las tendencias del espacio biofísico observadas, más allá de las figuras de protección legal que existen que incluyen el POZN y la RTVH. En el caso de la RTVH, el marco de protección no ha sido efectivo para preservar las características ecológicas que justificaron su creación. La inclusión de evidencia empírica como la mostrada en este trabajo en la planificación del desarrollo urbano es clave para avanzar en la protección activa del medio ambiente, más allá del discurso normativo.

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Does urban climate follow urban form? Analysing intraurban LST trajectories versus urban form trends in 3 cities with different background climates

Cited by 31 publications

References 56 publications

Opportunities and Challenges of Spaceborne Sensors in Delineating Land Surface Temperature Trends: A Review

Opportunities and Challenges of Spaceborne Sensors in Delineating Land Surface Temperature Trends: A Review

Spatial-temporal analysis of urban climate dynamics in major Hungarian cities

¿Es detectable empíricamente la protección normativa del territorio? Análisis de las tendencias de temperatura y vegetación del área norte de Bogotá con sensores remotos

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