Integration of coseismic deformation into WebGIS for near real-time disaster evaluation and emergency response
- PDF / 2,002,286 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 101 Downloads / 145 Views
ORIGINAL ARTICLE
Integration of coseismic deformation into WebGIS for near real‑time disaster evaluation and emergency response Rui Zhao1 · Xintao Liu1 · Wenbin Xu2,3 Received: 3 May 2019 / Accepted: 27 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Earthquakes are one of the destructive natural disasters. Immediate emergency response in the first few hours is important for life rescue. The near real-time ground deformation maps generated after earthquakes are crucial for hazard assessments, which normally take a couple of hours or longer to be generated using conventional ways. In this study, we propose a near real-time coseismic ground deformation map generation system with the aim of assisting rapid seismic hazard evaluations and emergency responses. This framework adopts the source parameters published by seismological agencies and uses the empirical equations to generate the near real-time coseismic ground deformation maps. The source parameters of an earthquake, such as the focal mechanism, are programmatically accessed from the United States Geological Survey National Earthquake Information Center (USGS-NEIC) in a nearly real-time manner. The ground deformation estimated using empirical equations is integrated as self-adapting spatial data fusion and visualized on an interactive WebGIS platform. We develop the WebGIS platform, namely QuickDeform at https://www.insar.com.cn, and successfully applied the system to several recent large magnitude earthquakes. We find that the proposed framework functions robustly and proficiently to automatically generate the seismic deformation map within several minutes after the occurrence of an earthquake. The generated deformation map shows good agreement when compared to the data from real earthquakes. QuickDeform can be used as a volunteered geographic information platform for crowdsourcing disaster data for rescue and model validation. Keywords Coseismic deformation · Real-time WebGIS · Earthquake modeling · Hazard assessment
Introduction With the development of science and technology, enormous achievements have been made in the field of seismology (Douglas and Edwards 2016). The large magnitude earthquakes often lead to huge economic losses and massive casualties. In the contemporary world, due to the rapid * Xintao Liu [email protected] * Wenbin Xu [email protected] 1
Department of Land Surveying and Geo‑Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
2
School of Geosciences and Info‑Physics, Central South University, Changsha 410083, Hunan, China
3
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education, Changsha 410083, Hunan, China
development of hardware technology, seismic monitoring became feasible. The Global Seismographic Network (GSN), which is collectively built by the USGS-NEIC, National Science Foundation (NSF) and Incorporated Research Institutions for Seismology (IRIS) can pro
Data Loading...
