{"id":19267,"date":"2022-03-10T10:55:05","date_gmt":"2022-03-10T10:55:05","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=19267"},"modified":"2022-03-10T10:55:05","modified_gmt":"2022-03-10T10:55:05","slug":"utilising-global-navigation-satellite-system-monitor-volcanic-activity","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/utilising-global-navigation-satellite-system-monitor-volcanic-activity\/19267\/","title":{"rendered":"Utilising Global Navigation Satellite System to monitor volcanic activity"},"content":{"rendered":"
A paper published February 9, 2022, in Earth, Planets and Space<\/em>, researchers analysed the potential of a dense Global Navigation Satellite System (GNSS) network, which is installed at cell phone base stations, to monitor crustal deformation as an early warning indicator of seismic activity<\/a>. The results revealed that the data from a cell phone network can rival the precision of data from a government-run GNSS network, while providing more complete geographic coverage.<\/p>\n Crustal deformation is monitored around plate boundaries, active faults, and volcanoes to assess the accumulation of strains that lead to significant seismic events. GNSS networks have been constructed worldwide in areas that are vulnerable to volcanoes and earthquakes, such as in Hawaii, California, and Japan. Data from these networks can be analysed in real time to serve in tsunami forecasting and earthquake early warning systems.<\/p>\n Japan’s GNSS network (GEONET) is operated by the Geospatial Information Authority of Japan. While GEONET has been fundamental in earth science research, its layout of 20-25 kilometres on average in between sites limits the monitoring of crustal deformation for some areas.<\/p>\n For example, magnitude 6-7 earthquakes on active faults in inland Japan have fault lengths of 20-40 kilometres; the GEONET site spacing is slightly insufficient to measure their deformation with suitable precision for use in predictive models.<\/p>\n However, Japanese cell phone carriers have constructed GNSS networks to improve locational information for purposes like automated driving. The new study examines the potential of a GNSS network built by the carrier SoftBank Corporation to play a role in monitoring crustal deformation. With 3,300 sites in Japan, this private company oversees 2.5 times the number of sites as the government GEONET system.<\/p>\nMonitoring crustal deformation<\/h3>\n
GNSS networks<\/h3>\n