Geophysics is the study of Earth using quantitative physical methods. It examines the physics of Earth and the environment on and surrounding the planet. To gain an understanding of these relationships, geophysicists study a number of phenomena that include gravitational fields, magnetic fields, the hydrological cycle, fluid dynamics at work in the oceans, seismology, the ionosphere and magnetosphere, and solar-terrestrial relations.

Salem Press Encyclopedia of Science, 2023. 3p.