pvtend.centerline_tilt

pvtend.centerline_tilt(xm: ndarray, y_min: ndarray, y_max: ndarray) → float[source]

Slope of the bay centreline (mid-point of envelope).

Parameters:

  • xm – x-coordinates of envelope samples.

  • y_min – Lower/upper envelope y-values.

  • y_max – Lower/upper envelope y-values.

Returns:

Slope (deg lat / deg lon). Negative -> AWB; positive -> CWB. Returns np.nan if fewer than 3 valid points.