Shunroku Yamamoto

Improvement of back-azimuth estimation in real-time by using a single station record

We propose a new approach to improve the accuracy of the back-azimuth estimation in real-time by using a single station record. Compared with the conventional approach in which the length of the time window for the analysis is fixed for all data, the accuracy and speed of the estimation are drastically improved by introducing a variable-length time window which is determined by the first half cycle of the wavelength of the initial P -wave, because this window tends to reduce the influences of trailing scattered waves. The analysis, using the K-NET dataset, shows that the estimation, using this new approach, is improved by 28% and 0.25 s in accuracy and speed, respectively.

Geo-ICT solutions for emergency response

Geo-information technology and systems for emergency management have advanced greatly in the last few years. Systems for early warning, command and control, and decision-making have been successfully implemented in many countries and regions all over the world. Many of these systems can meet requirements for early warning and real-time response, and provide suitable models for elaborated predictions, simulations and visualizations. However, some new paradigms such as 3D modelling and semantics are still insufficiently addressed. It is expected that 3D models can greatly improve situational awareness and enhance spatial analysis and simulations. Appropriate vocabularies and semantics to enrich the spatial information are extremely beneficial in data integration and sharing of information at national and international level as well as for developing of context aware applications. This talk will make an overview on systems for emergency response and will present results of systems based on semantically enriched 3D models. About the Speaker: Sisi Zlatanova is an associate professor and the leader of a research group Geo-information for Crisis Response at the GIS Technology section, OTB Research for the Built Environment, Faculty of Architecture and the Built Environment, Delft University of Technology, the Netherlands. She has graduated as a surveyor at the University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria in 1983 and has obtained her PhD degree on 3D GIS for urban modelling at the Graz University of Technology, Graz, Austria in 2000. She is vice chair of OGC SWG IndoorGML, a chair of the ISPRS WGIV/7: 3D Indoor modeling and navigation, 2012-2016 and a member of the Scientific Committee of Integrated Research on Disaster Risk (IRDR). She is author of more than 200 scientific papers and editor and co-editor of 18 books. Her research interests are in 3D geo-information and its applications in emergency response.