huracanpy.calc.distance

huracanpy.calc.distance(lon, lat, *args, track_id=None, method='geod', ellps='WGS84')

Compute distance between longitude/latitude coordinates using geodesic or haversine calculation

>>> distance(lon, lat, track_id)
Computes the distance between successive lon, lat points, without including
differences between the end and start points of different tracks

>>> distance(lon1, lat1, lon2, lat2)
Computes the distance between each point in (lon1, lat1) and each point in
(lon2, lat2)

Parameters:

• lon (xarray.DataArray)

• lat (xarray.DataArray)

• *args (xarray.DataArray) –

  • 0 arguments. Leave empty to calculate distance between successive points

  • 1 argument, track_id. Same as 0 arguments but inserts NaNs where successive

    points are from different tracks

  • 2 arguments, lon and lat arrays. Calculate distances between two tracks,

    e.g. radius of maximum wind speed, using storm centre locations and maximum wind speed locations

• track_id (array_like, optional)

• method (str, optional) – The method of computing distances, either geodesic (“geod”) or haversine (“haversine”)

• ellps (str, optional) – The definition of the globe to use for the geodesic calculation (see pyproj.Geod). Default is “WGS84”.

Return type:

xarray.DataArray