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  3. obspy.taup - Ray theoretical travel times and paths
  4. obspy.taup.slowness_model
  5. obspy.taup.slowness_model.SlownessModel

obspy.taup.slowness_model.SlownessModel.approx_distance

SlownessModel.approx_distance(slowness_turn_layer, p, is_p_wave)[source]

Approximate distance for ray turning at the bottom of a layer.

Generates approximate distance, in radians, for a ray from a surface source that turns at the bottom of the given slowness layer.

Parameters:
  • slowness_turn_layer (int) The number of the layer at which the ray should turn.
  • p (float) The slowness to calculate, in s/km.
  • is_p_wave (bool) Whether to use the P (True) or S (False) wave.
Returns:

The time (in s) and distance (in rad) the ray travels.
Return type:

ndarray (dtype = TimeDist, shape = (slowness_turn_layer, ))