Jonathan R. Weiss, Richard J. Walters, Yu Morishita, Tim J. Wright, Milan Lazecky, Hua Wang, Ekbal Hussain, Andrew J. Hooper, John R. Elliott, Chris Rollins, Chen Yu, Pablo J. Gonzalez, Karsten Spaans, Zhenhong Li, Barry Parsons
- Measurements of present-day surface deformation are essential for the assessment of long-term seismic hazard. The European Space Agency's Sentinel-1 satellites enable global, high-resolution observation of crustal motion from Interferometric Synthetic Aperture Radar (InSAR). We have developed automated InSAR processing systems that exploit the first similar to 5 years of Sentinel-1 data to measure surface motions for the similar to 800,000-km(2) Anatolian region. Our new 3-D velocity and strain rate fields illuminate deformation patterns dominated by westward motion of Anatolia relative to Eurasia, localized strain accumulation along the North and East Anatolian Faults, and rapid vertical signals associated with anthropogenic activities and to a lesser extent extension across the grabens of western Anatolia. We show that automatically processed Sentinel-1 InSAR data can characterize details of the velocity and strain rate fields with high resolution and accuracy over large regions. These results are important for assessing theMeasurements of present-day surface deformation are essential for the assessment of long-term seismic hazard. The European Space Agency's Sentinel-1 satellites enable global, high-resolution observation of crustal motion from Interferometric Synthetic Aperture Radar (InSAR). We have developed automated InSAR processing systems that exploit the first similar to 5 years of Sentinel-1 data to measure surface motions for the similar to 800,000-km(2) Anatolian region. Our new 3-D velocity and strain rate fields illuminate deformation patterns dominated by westward motion of Anatolia relative to Eurasia, localized strain accumulation along the North and East Anatolian Faults, and rapid vertical signals associated with anthropogenic activities and to a lesser extent extension across the grabens of western Anatolia. We show that automatically processed Sentinel-1 InSAR data can characterize details of the velocity and strain rate fields with high resolution and accuracy over large regions. These results are important for assessing the relationship between strain accumulation and release in earthquakes. <br /> Plain Language Summary Satellite-based measurements of small rates of motion of the Earth's surface made at high spatial resolutions and over large areas are important for many geophysical applications including improving earthquake hazard models. We take advantage of recent advances in geodetic techniques in order to measure surface velocities and tectonic strain accumulation across the Anatolia region, including the highly seismogenic and often deadly North Anatolian Fault. We show that by combining Sentinel-1 Interferometric Synthetic Aperture Radar (InSAR) data with Global Navigation Satellite System (GNSS) measurements we can enhance our view of surface deformation associated with active tectonics, the earthquake cycle, and anthropogenic processes.…
MetadatenAuthor details: | Jonathan R. WeissORCiD, Richard J. WaltersORCiD, Yu MorishitaORCiD, Tim J. WrightORCiDGND, Milan LazeckyORCiD, Hua WangORCiD, Ekbal HussainORCiD, Andrew J. HooperORCiD, John R. ElliottORCiD, Chris RollinsORCiD, Chen YuORCiD, Pablo J. GonzalezORCiD, Karsten SpaansORCiD, Zhenhong LiORCiD, Barry ParsonsORCiD |
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DOI: | https://doi.org/10.1029/2020GL087376 |
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ISSN: | 0094-8276 |
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ISSN: | 1944-8007 |
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Title of parent work (English): | Geophysical research letters |
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Publisher: | American Geophysical Union |
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Place of publishing: | Washington |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2020/07/08 |
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Publication year: | 2020 |
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Release date: | 2023/04/13 |
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Volume: | 47 |
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Issue: | 17 |
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Article number: | e2020GL087376 |
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Number of pages: | 12 |
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Funding institution: | Natural Environmental Research Council (NERC) through the Centre for the; Observation and Modeling of Earthquakes, Volcanoes and Tectonics; Looking inside the Continents from Space large grants [NE/K011006/1,; NE/K010867/1, NE/K010794/1]; Earthquakes without Frontiers project; [EwF_NE/J02001X/1_1]; German Research Foundation (DFG)German Research; Foundation (DFG); Brandenburg Ministry of Sciences, Research and; Cultural Affairs, Germany; Japan Society for the Promotion of Science; Overseas Research FellowshipMinistry of Education, Culture, Sports,; Science and Technology, Japan (MEXT)Japan Society for the Promotion of; Science; NSFCNational Natural Science Foundation of China (NSFC); [41672205]; Royal SocietyRoyal Society of LondonEuropean Commission; NERCUK Research & Innovation (UKRI)Natural Environment Research Council; (NERC) [NE/K010867/1, NE/K011006/1, come30001, NE/J01978X/1, bgs06002]; Funding Source: UKRI |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
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Peer review: | Referiert |
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Publishing method: | Open Access / Hybrid Open-Access |
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License (German): | CC-BY - Namensnennung 4.0 International |
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