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The dynamics of poor urban areas - analyzing morphologic transformations across the globe using Earth observation data

Kraff, Nicolas und Wurm, Michael und Taubenböck, Hannes (2020) The dynamics of poor urban areas - analyzing morphologic transformations across the globe using Earth observation data. Cities, 107, Seiten 1-15. Elsevier. doi: 10.1016/j.cities.2020.102905. ISSN 0264-2751.

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Offizielle URL: https://www.sciencedirect.com/science/article/pii/S0264275120312531

Kurzfassung

The urban environment is in constant motion, mostly through construction but also through destruction of urban elements. While formal development is a process with long planning periods and thus the built landscape appears static, informal or spontaneous settlements seem to be subject to high dynamics in their ever unfinished urban form. However, the dynamics and morphological characteristics of physical transformation in such settlements of urban poverty have been hardly empirically studied on a global scale or temporal consistent foundation. This paper aims at filling this gap by using Earth observation data to provide a temporal analysis of builtup transformation over a period of ~7 years in 16 documented manifestations of urban poverty. This work applies visual image interpretation using very high resolution optical satellite data in combination with in-situ and Google Street View images to derive 3D city models. We measure physical spatial structures through six spatial morphologic variables - number of buildings, size, height, orientation, heterogeneity and density. Our temporal assessment reveals inter- as well intra-urban differences and we find different, yet generally high morphologic dynamic across study sites. This is expressed in manifold ways: from demolished and reconstructed areas to such where changes appeared within the given structures. Geographically, we find advanced dynamics among our sample specifically in areas of the global south. At the same time, we observe a high spatial variability of morphological transformations within the studied areas. Despite partly high morphologic dynamics, spatial patterns of building alignments, streets and open spaces remain predominantly constant.

elib-URL des Eintrags:https://elib.dlr.de/135951/
Dokumentart:Zeitschriftenbeitrag
Titel:The dynamics of poor urban areas - analyzing morphologic transformations across the globe using Earth observation data
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Kraff, Nicolasnicolas.kraff (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wurm, Michaelmichael.wurm (at) dlr.dehttps://orcid.org/0000-0001-5967-1894NICHT SPEZIFIZIERT
Taubenböck, Hanneshannes.taubenboeck (at) dlr.dehttps://orcid.org/0000-0003-4360-9126NICHT SPEZIFIZIERT
Datum:August 2020
Erschienen in:Cities
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:107
DOI:10.1016/j.cities.2020.102905
Seitenbereich:Seiten 1-15
Verlag:Elsevier
ISSN:0264-2751
Status:veröffentlicht
Stichwörter:Urban morphology Urban pattern Change detection Slums Informal settlements Urban poverty 3D city model Remote sensing Earth observation
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Fernerkundung u. Geoforschung, R - Geowissenschaftl. Fernerkundungs- und GIS-Verfahren
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum > Georisiken und zivile Sicherheit
Hinterlegt von: Taubenböck, Prof. Dr. Hannes
Hinterlegt am:14 Sep 2020 10:17
Letzte Änderung:23 Okt 2023 13:24

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