Phys.org July 14, 2022 Researchers in Japan believe that it may be possible to predict tsunamis faster by tracking the atmospheric disturbances caused by the airwaves they create and the errors in the positional information supplied by GPS satellites. Examining the errors following eruption they found that it caused waves of air pressure to spread as far as Australia and Japan. These waves oscillated the lower part of the ionosphere and generated an electric field that was then transmitted at high speed to the upper ionosphere. They detected the electron changes much earlier than the air pressure waves that caused […]
Tag Archives: Tsunamis
Researchers develop a model to better understand the forces that generate tsunamis
Phys.org June 21, 2021 Currently, there is a large gap in the predictions of tsunamis based on simplified models that consider the field complexity but do not capture the physics of the landslide as it enters the water. An international team of researchers (France, USA – UC Santa Barbara) measured the volume of a granular material and released it, causing it to collapse into a long, narrow channel filled with water. They found that while the density and diameter of the grains within a landslide had little effect on the amplitude of the wave, the total volume of the grains […]