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Can nighttime imagery identify urban sprawl?

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Arellano Ramos, BlancaMés informacióMés informacióMés informació
Roca Cladera, JosepMés informacióMés informacióMés informació
Document typeConference report
Defense date2020
PublisherInternational Society for Photo-Optical Instrumentation Engineers (SPIE)
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
ProjectLA ISLA DE CALOR URBANA: EFECTOS EN EL CAMBIO CLIMATICO Y MODELADO PARA ESTRATEGIAS DE PLANEAMIENTO TERRITORIAL Y URBANO. APLICACION A LA REGION METROPOLITANA DE BARCELONA (MINECO-BIA2015-68623-R)
Abstract
Nighttime light imagery of the earth are a useful way to study the urbanization process. Satellite nocturnal images have been used to identify metropolitan areas as well as urban growth. However, the study of the extent and internal structure of urban systems by nighttime lights has had a fundamental limitation to date: the low spatial resolution of satellite sensors. DMSP Operational Linescan System (OLS), with its 2.7 km/pixel footprint, and Suomi National Polar Partnership (SNPP) satellite, with the Visible Infrared Imaging Radiometer Suite (VIIRS) sensor on board, with a spatial resolution of 742 m/pixel, still have considerable limitations for the in-depth study of the internal structure of urban systems. The launch of Luojia 1-01 in June 2018 has increased expectations. Its high-resolution nocturnal images (130 metres/pixel) allows a better in-depth study of the landscape impacted by the urbanization. Nevertheless, the areas resulting from urban sprawl process are characterized by weak night lighting, which makes identification extremely difficult. Breaking the rigid boundary that historically distinguished the urban from the rural, the topological inversion of the landscape produced by urban sprawl, makes difficult to identify the territories impacted by dispersed, fragmented and low density urbanization processes.
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1: Pl. de Catalunya, 9999, 08002 Barcelona, Espanya
CitationArellano, B.; Roca, J. Can nighttime imagery identify urban sprawl? A: SPIE International Symposium on Optical Engineering and Applications. "SPIE Optical Engineering and Applications 2020: XXV Earth Observing Systems: 24 August-4 September 2020: proceedings volume 11501". Washington: International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020, DOI 10.1117/12.2568409. 
URIhttp://hdl.handle.net/2117/344026
DOI10.1117/12.2568409
Publisher versionhttps://spie.org/Publications/Proceedings/Paper/10.1117/12.2568409
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