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ResearcherWang Rongjiang from the German Research Centre for Geosciences visits our institute for academic exchange

2019/11/28 14:54:49

At the invitation of researchers Shan Xinjian and Zhang Guohong from our institute,researcherWang Rongjiang from the German Research Centre for Geosciences visited the Institute of Geology on July 12, 2019.He participated in an academic exchange with students and delivered an academic report titled “Pre-P-wave elasto-gravitational signals and their potential use in modern seismology.”

During this visit, Dr. Wang Rongjiang described the newly discovered elastic gravity signals caused by major earthquakes in terms of theoretical methods, numerical observations, and signal simulation and separation, and took the 2011 Japan Tohoku earthquake as an example for verification. For the signal contained in this newly discovered earthquake wave, Dr. Wang Rongjiang used a relatively simple theoretical formula to skillfully separate the elastic gravity signal, compared it with the signal observed by the EarthquakeNetwork Center, and verified its existence from theory to observation. In addition,he detailed the application potential of elastic gravity signals caused by large earthquakes for earthquake warning, rapid determination of the magnitude of strong earthquakes,etc. The report attracted more than 40 scientific personnel and graduate students from the Chinese Academy of Sciences, the Institute of Geology, the Institute of Geophysics, and the Institute of Disaster Prevention. After the report, Dr. Wang Rongjiang and participants had a heated discussion on the mechanism of elastic gravity signal generation, whether the same phenomenon exists in different types of earthquakes, the recording and processing of earthquake wave data, and the possible problems and advantages of elastic gravity signals in earthquake warning.

Dr. Wang Rongjiang has maintained good communication and cooperation with the Institute of Geology for a long time, and he is a distinguished researcher of the State Ley Laboratory of Earthquake Dynamics. He began to pay attention to and carry out research work on geophysics and computational seismology in the 1990s, and made outstanding contributions to the research on the inversion of seismic sources and disaster relief. He developed and compiled a series of geophysical computing and application software, many of which have become international research tools. Based on his outstanding contributions to geophysical and seismological research, Dr. Wang Rongjiang was awarded the Ernst von Rebeur-Paschwitz Medal, the highest honor in German geophysics, in 2015. He was the fourth scientist and the first Chinese scientist to receive the medal.