What Does PREM Stand For?

PREM stands for Preliminary Ref Earth Model

PREM, or Preliminary Reference Earth Model, is a standard model of the Earth's interior structure, representing the seismic and physical properties of the Earth from the surface to the core. It serves as a foundational reference for geophysical research and seismic studies, enabling scientists to analyze and interpret seismic wave data, understand Earth's composition, and investigate its geodynamic processes. The model provides essential parameters such as density, velocity, and compositional variations, facilitating advancements in geoscience and related fields.