wradlib.vpr.make_3d_grid

wradlib.vpr.make_3d_grid(site, crs, maxrange, maxalt, horiz_res, vert_res, *, minalt=0.0)

Generate Cartesian coordinates for a regular 3-D grid based on radar specs.

Parameters:

• site (tuple) – Radar location coordinates in lon, lat

• crs – Coordinate Reference System (CRS). Can be one of:

  • A pyproj.crs.CoordinateSystem instance

  • A cartopy.crs.CRS instance

  • A osgeo.osr.SpatialReference instance

  • A type accepted by pyproj.crs.CRS.from_user_input (e.g., EPSG code, PROJ string, dictionary, WKT, or any object with a to_wkt() method)

• maxrange (float) – maximum radar range (same unit as CRS defined by crs, typically meters)

• maxalt (float) – maximum altitude to which the 3-d grid should extend (meters)

• horiz_res (float) – horizontal resolution of the 3-d grid (same unit as CRS defined by crs, typically meters)

• vert_res (float) – vertical resolution of the 3-d grid (meters)

• minalt (float, optional) – minimum altitude to which the 3-d grid should extend (meters), defaults to 0.

Returns:

output (numpy.ndarray, tuple) – float array of shape (num grid points, 3), a tuple of 3 representing the grid shape