Surface contours

Plot a composite map including bedrock altitude, a half-transparent ice mask, a surface altitude contour, and geographic elements.

downloading https://raw.githubusercontent.com/juseg/hyoga-data/main/pism/pism.alps.out.2d.nc...
/home/docs/checkouts/readthedocs.org/user_builds/hyoga/envs/latest/lib/python3.12/site-packages/hyoga/open/example.py:29: FutureWarning: In a future version, xarray will not decode timedelta values based on the presence of a timedelta-like units attribute by default. Instead it will rely on the presence of a timedelta64 dtype attribute, which is now xarray's default way of encoding timedelta64 values. To continue decoding timedeltas based on the presence of a timedelta-like units attribute, users will need to explicitly opt-in by passing True or CFTimedeltaCoder(decode_via_units=True) to decode_timedelta. To silence this warning, set decode_timedelta to True, False, or a 'CFTimedeltaCoder' instance.
  return xr.open_dataset(path)
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_coastline.zip...
/home/docs/checkouts/readthedocs.org/user_builds/hyoga/envs/latest/lib/python3.12/site-packages/shapely/constructive.py:829: RuntimeWarning: invalid value encountered in normalize
  return lib.normalize(geometry, **kwargs)
/home/docs/checkouts/readthedocs.org/user_builds/hyoga/envs/latest/lib/python3.12/site-packages/shapely/constructive.py:829: RuntimeWarning: invalid value encountered in normalize
  return lib.normalize(geometry, **kwargs)
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_rivers_lake_centerlines.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_rivers_australia.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_rivers_europe.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_rivers_north_america.zip...
/home/docs/checkouts/readthedocs.org/user_builds/hyoga/envs/latest/lib/python3.12/site-packages/shapely/constructive.py:829: RuntimeWarning: invalid value encountered in normalize
  return lib.normalize(geometry, **kwargs)
/home/docs/checkouts/readthedocs.org/user_builds/hyoga/envs/latest/lib/python3.12/site-packages/shapely/constructive.py:829: RuntimeWarning: invalid value encountered in normalize
  return lib.normalize(geometry, **kwargs)
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_lakes.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_lakes_australia.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_lakes_europe.zip...
downloading https://naturalearth.s3.amazonaws.com/10m_physical/ne_10m_lakes_north_america.zip...

import matplotlib.pyplot as plt
import hyoga

# open demo data
with hyoga.open.example('pism.alps.out.2d.nc') as ds:

    # plot model output
    ds.hyoga.plot.bedrock_altitude(center=False)
    ds.hyoga.plot.ice_margin(facecolor='w')
    ds.hyoga.plot.surface_altitude_contours(colors='tab:blue')

    # add coastline and rivers
    ax = ds.hyoga.plot.natural_earth()

# set title
ax.set_title(r'Surface elevation contours')

# show
plt.show()