Seafloor depth - Bathymetry

#30DayMapChallenge - Day 24 - The blue planet

from glob import glob
import matplotlib
import matplotlib.pyplot as plt
import numpy as np

import cartopy.crs as ccrs
import cartopy.feature as cfeature
import cartopy.io.shapereader as shpreader


def load_bathymetry(zip_file_url):
    """Read zip file from Natural Earth containing bathymetry shapefiles"""
    # Download and extract shapefiles
    imp…