Institute: National Central University
Title: Professor
Country/Region: Taiwan
Period: 2024/9/16-2025/5/15
Theme: Revolutionizing Subsurface Exploration in Coastal Environments: Breakthroughs in Shallow Marine Magnetotelluric Instrumentation and Data Processing
Host: Kiyoshi BABA
Introduction: Introduction: Professor Chang Ping-Yu’s specialty is in electromagnetic geophysics, focusing primarily on subsurface studies using magnetotelluric (MT) methods and the development and application of MT systems. Chang collaborated with local R&D partnerships to create a more affordable, modular GPS-timing MT system, which costs a fraction of traditional systems. This innovation allows for more flexible and widespread use of MT surveys, reducing reliance on costly commercial options. Chang's work includes the development of new data processing methods and inversion calculation programs. Chang’s MT system has been utilized in various field surveys across Taiwan, including Yilan, Pingtung, the Chishang fault, and the urban area of Hualien, notably during the Hualien earthquake. These surveys help determine the influence of electromagnetic noise, particularly from high-voltage power lines and railway networks, on electromagnetic monitoring. His research findings offer critical data for planning future MT surveys in metropolitan areas to minimize artificial noise impacts. Currently, Chang is working on a shallow marine MT system. This project aims to survey across sea and land boundaries, collecting MT data from the shallow marine(<300m) near Taiwan in collaboration with colleagues from the University of Tokyo.
Fiscal Year: 2024