Gravity and magnetics (fatiando.gravmag)¶

Forward modeling¶

The forward modeling modules provide ways to calculate the gravitational and magnetic field of various types of geometric objects:

• prism: 3D right rectangular prisms
• polyprism: 3D prisms with polygonal horizontal cross-sections
• sphere: Spheres in Cartesian coordinates
• tesseroid: Tesseroids (spherical prisms) for modeling in spherical coordinates
• talwani: 2D bodies with polygonal vertical cross-sections

Inversion¶

The inversion modules use the forward modeling models and the fatiando.inversion package to solve potential field inverse problems:

• basin2d: 2D inversion of the shape of sedimentary basins and other outcropping bodies
• harvester: 3D inversion of compact bodies by planting anomalous densities
• euler: 3D Euler deconvolution methods to estimate source location
• magdir: Inversion methods to estimate the total magnetization vector of multiple sources.

Processing¶

The processing modules offer tools to prepare potential field data before or after modeling.

• normal_gravity: Compute normal gravity and reductions.
• eqlayer: Equivalent layer processing
• transform: Potential field transformations, like upward continuation, derivatives, etc
• imaging: Imaging methods for potential fields for estimating physical property distributions
• tensor: Utilities for operating on the gradient tensor

Interactivity¶

Module interactive implements matplotlib GUIs and IPython HTML widgets for interacting with the modeling and processing functions.