C. Scott Watson's research while affiliated with University of Leeds and other places

Publications (11)

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see: https://comet.nerc.ac.uk/earthquakes/us6000jllz.html https://www.bbc.co.uk/news/science-environment-64603521 https://www.space.com/turkey-earthquake-satellite-images-200-mile-rupture
Preprint
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Satellite-based earth observation sensors are increasingly able to monitor geophysical signals related to natural hazards, and many groups are working on rapid data acquisition, processing, and dissemination to data users with a wide range of expertise and goals. A particular challenge in the meaningful dissemination of Interferometric Synthetic Ap...
Article
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Many cities are built on or near active faults, which pose seismic hazard and risk to the urban population. This risk is exacerbated by city expansion, which may obscure signs of active faulting. Here, we estimate the risk to Bishkek city, Kyrgyzstan, due to realistic earthquake scenarios based on historic earthquakes in the region and an improved...
Article
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Earth observation (EO) data can provide large scale, high-resolution, and transferable methodologies to quantify the sprawl and vertical development of cities and are required to inform disaster risk reduction strategies for current and future populations. We synthesize the evolution of Bishkek, Kyrgyzstan, which experiences high seismic hazard, an...
Article
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Rapid urban expansion in many parts of the world is leading to increased exposure to natural hazards, exacerbated by climate change. The use of physics-based models of natural hazards in risk-informed planning and decision-making frameworks may provide an improved understanding of site-specific hazard scenarios, allowing various decision makers to...
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Greenspaces within broader ecosystem-based disaster risk reduction (Eco-DRR) strategies provide multiple benefits to society, biodiversity, and addressing climate breakdown. In this study, we investigated urban growth, its intersection with hazards, and the availability of greenspace for disaster risk reduction (DRR) in the city of Quito, Ecuador,...
Preprint
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Greenspaces within broader ecosystem-based disaster risk reduction strategies (Eco-DRR) provide multiple benefits to society, biodiversity, and addressing climate breakdown. In this study, we investigated urban growth, its intersection with hazards, and the availability of greenspace for disaster risk reduction (DRR) in the city of Quito, Ecuador,...
Preprint
Full-text available
Many cities are built on or near active faults, which pose seismic hazard and risk to the urban population. This risk is exacerbated by city expansion, which may obscure signs of active faulting. Here we estimate the risk to Bishkek city, Kyrgyzstan, due to realistic earthquake scenarios based on historic earthquakes in the region and improved know...
Article
Full-text available
Major faults of the Tien Shan, Central Asia, have long repeat times, but fail in large (Mw 7+) earthquakes. In addition, there may be smaller, buried faults off the major faults which are not properly characterized or even recognized as active. These all pose hazard to cities along the mountain range front such as Almaty, Kazakhstan. Here, we explo...
Article
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We present a compilation of 2131 high-fidelity mechanisms and centroid depths of moderate-magnitude earthquakes derived using synthetic body-waveform modeling (the Global Waveform-Modelled Earthquake Catalog v1.0—gWFM), which can be visualized and downloaded online (see Data and Resources). In this article, we describe the methods used to construct...
Article
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Space-borne Synthetic Aperture Radar (SAR) Interferometry (InSAR) is now a key geophysical tool for surface deformation studies. The European Commission’s Sentinel-1 Constellation began acquiring data systematically in late 2014. The data, which are free and open access, have global coverage at moderate resolution with a 6 or 12-day revisit, enabli...

Citations

... Since no specific flood vulnerability functions are developed for the study area, we adopt the depth-damage functions of the global flood depth-loss model developed by the Joint Research Center (JRC) of the European Commission (Huizinga et al., 2017). More sophisticated analytical flood fragility and vulnerability functions, which propagate uncertainties in the hazard-dependent failure of building components and associated repair and replacement costs (e.g., Nofal et al., 2020;Nofal and van de Lindt, 2021), would require detailed component-level vulnerability information that is not available for this study. ...
... Some of these redevelopments fell within the 'Industrial commercial and transport units' class ( Figure 3c) and were linked to commercial developments (e.g., Figure 4b). Greenspace distribution in cities is becoming increasingly valued for a range of societal and environmental benefits [75][76][77]. Against a backdrop of urban sprawl and redevelopment, our analysis identified urban greening, which could otherwise be masked within a general trend of urbanization and greenspace depletion, e.g., [52]. This analysis also offers a simple method of updating exposure datasets where ages are assigned to built-up areas, e.g., [15], since ~26% of Bishkek's built-up area classified in 1979 was observed to have redeveloped. ...
... Cities such as Bishkek (Kyrgyzstan) and Almaty (Kazakhstan) in the Tien Shan Mountain range, Central Asia, are exposed to high seismic risk [16,[32][33][34] (Figure 1a). A future earthquake in Bishkek could lead to thousands of fatalities and require hundreds of millions of dollars in rebuilding costs [33,35]. Bishkek is expanding horizontally towards active faults and vertically through high-rise developments. ...
... Disaster risk reduction strategies require an understanding of the exposure and vulnerability of people and assets to hazards [14]. For example, details of building structure including age, construction method and material, and height, are key information for modeling disaster risk in seismically active regions [4,[15][16][17]. The automatic mapping of 2D urban growth using satellite data and image classification techniques is now widespread, e.g., [18,19]; however, retrieving the building-level 3D structure of a city generally requires expensive aerial imagery or light detection and ranging (LiDAR) surveys [20,21] or high-resolution digital elevation models (DEMs) [22]. ...
... (Wang & Shen, 2020). Focal mechanisms are the results of body-wave modeling compiled by Wimpenny and Watson (2020) and provided by Sloan et al. (2011). The colors in the beach balls show the centroid depth (Sloan et al., 2011;Wimpenny & Watson, 2020). ...
... Using Sentinel-1's 12-day revisiting time, the data set of this study constituted 2020 InSAR pairs for contextual understanding related to soil moisture, vegetation, and local roughness. To avoid processing accuracy issues described in Section 3, we used the data products available in the Looking Into Continents from Space with Synthetic Aperture Radar (LiCSAR) repository [53], which has preprocessed 90 m resolution InSAR products. ALOS-2 is a satellite mission launched in 2014 with capabilities for land cover/use mapping, environmental change, and geomorphic feature tracking [54]. ...