{
 "what": "bare ground, Ville de Montreal terrain model 2015 (CC BY 4.0), rasterised at pixel centres",
 "first_pixel_centre_frame": [
  -158.717,
  1952.46
 ],
 "cell_m": 1.0,
 "rows_go": "south (y decreases)",
 "z_origin_m_above_sea": 3,
 "units": "centimetres above the z origin",
 "nodata": 65535,
 "shape": [
  2015,
  1926
 ],
 "known_share": 0.6878
}