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Remote Sens. 2015, 7(12), 16519-16536; doi:10.3390/rs71215842

The Space-Borne SBAS-DInSAR Technique as a Supporting Tool for Sustainable Urban Policies: The Case of Istanbul Megacity, Turkey

1
Institute for the Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR) of Italy, via Diocleziano 328, Napoli 80124, Italy
2
Department of Geomatic Engineering, Civil Engineering Faculty, Yildiz Technical University, Esenler-Istanbul 34220, Turkey
3
Department of Geomatics Engineering, Engineering Faculty, Bulent Ecevit University, Zonguldak 67100, Turkey
4
Geography Department, Istanbul University, 34459 Laleli, Istanbul, Turkey
5
Department of Geotechnic Engineering, Civil Engineering Faculty, Yildiz Technical University, Esenler-Istanbul 34220, Turkey
*
Author to whom correspondence should be addressed.
Academic Editors: Zhong Lu, Norman Kerle and Prasad S. Thenkabail
Received: 7 September 2015 / Accepted: 1 December 2015 / Published: 5 December 2015
View Full-Text   |   Download PDF [9066 KB, uploaded 8 December 2015]   |  

Abstract

In today’s urbanizing world, home of 28 megacities, there is a growing need for tools to assess urban policies and support the design and implementation of effective development strategies. Unsustainable practices of urbanization bring major implications for land and environment, and cause a dramatic increase of urban vulnerability to natural hazards. In Istanbul megacity, disaster risk reduction represents a challenging issue for urban managers. In this paper, we show the relevance of the space-borne Differential SAR Interferometry (DInSAR) technique as a tool for supporting risk management, and thus contributing to achieve the urban sustainability. To this aim, we use a dataset of high resolution SAR images collected by the TerraSAR-X satellite that have been processed through the advanced (multi-temporal) Small BAseline Subset (SBAS)—DInSAR technique, thus producing spatially-dense deformation velocity maps and associated time-series. Results allow to depict an up-to-date picture of surface deformations occurring in Istanbul, and thus to identify urban areas subject to potential risk. The joint analysis of remotely sensed measurements and ancillary data (geological and urban development information) provides an opportunity for city planners and land professionals to discuss on the mutual relationship between urban development policies and natural/man-made hazards. View Full-Text
Keywords: Differential SAR Interferometry (DInSAR); Small BAseline Subset (SBAS); urban deformations; hazard; risk; urbanization; Istanbul; Turkey Differential SAR Interferometry (DInSAR); Small BAseline Subset (SBAS); urban deformations; hazard; risk; urbanization; Istanbul; Turkey
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Calò, F.; Abdikan, S.; Görüm, T.; Pepe, A.; Kiliç, H.; Balik Şanli, F. The Space-Borne SBAS-DInSAR Technique as a Supporting Tool for Sustainable Urban Policies: The Case of Istanbul Megacity, Turkey. Remote Sens. 2015, 7, 16519-16536.

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