# obspy.taup.velocity_model.VelocityModel

class `VelocityModel`(model_name, radius_of_planet, min_radius, max_radius, moho_depth, cmb_depth, iocb_depth, is_spherical, layers=None)

  Bases: `builtins.object`

  Attributes

  `__dict__` |
  `__doc__` |
  `__module__` | str(object=’‘) -> str
  `__weakref__` | list of weak references to the object (if defined)

  Public Methods

  `depth_at_bottom` | Return the depth at the bottom of the given layer.
  `depth_at_top` | Return the depth at the top of the given layer.
  `evaluate_above` | Return the value of the given material property at the given depth(s).
  `evaluate_below` | Return the value of the given material property at the given depth(s).
  `fix_discontinuity_depths` | Reset depths of major discontinuities.
  `get_discontinuity_depths` | Return the depths of discontinuities within the velocity model.
  `is_discontinuity` |
  `layer_number_above` | Find the layer containing the given depth(s).
  `layer_number_below` | Find the layer containing the given depth(s).
  `read_nd_file` | Read in a velocity model from a “nd” ASCII text file.
  `read_tvel_file` | Read in a velocity model from a “tvel” ASCII text file.
  `read_velocity_file` | Read in a velocity file.
  `validate` | Perform internal consistency checks on the velocity model.

  Special Methods

  `__dir__` | default dir() implementation
  `__format__` | default object formatter
  `__init__` | Object for storing a seismic planet model.
  `__len__` |
  `__new__` | Create and return a new object.
  `__reduce__` | helper for pickle
  `__reduce_ex__` | helper for pickle
  `__sizeof__` | size of object in memory, in bytes
  `__str__` |
  `__subclasshook__` | Abstract classes can override this to customize issubclass().

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)