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  4. obspy.taup.slowness_model
  5. obspy.taup.slowness_model.SlownessModel

obspy.taup.slowness_model.SlownessModel.layer_number_below

SlownessModel.layer_number_below(depth, is_p_wave)[source]

Find the index of the slowness layer that contains the given depth.

Note that if the depth is a layer boundary, it returns the deeper of the two or possibly more (since total reflections are zero thickness layers) layers.

See also

layer_number_above()

Parameters:
  • depth (float or ndarray) The depth to find, in km.
  • is_p_wave (bool) Whether to look at P (True) velocity or S (False) velocity.
Returns:

The slowness layer containing the requested depth.
Return type:

int or ndarray (dtype = int, shape = depth.shape)
Raises SlownessModelError:
 

If no layer in the slowness model contains the given depth.