EPSG:3973 - WGS 84 / NSIDC EASE-Grid North

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "WGS 84 / NSIDC EASE-Grid North",
  "base_crs": {
    "name": "WGS 84",
    "datum_ensemble": {
      "name": "World Geodetic System 1984 ensemble",
      "members": [
        {
          "name": "World Geodetic System 1984 (Transit)",
          "id": {
            "authority": "EPSG",
            "code": 1166
          }
        },
        {
          "name": "World Geodetic System 1984 (G730)",
          "id": {
            "authority": "EPSG",
            "code": 1152
          }
        },
        {
          "name": "World Geodetic System 1984 (G873)",
          "id": {
            "authority": "EPSG",
            "code": 1153
          }
        },
        {
          "name": "World Geodetic System 1984 (G1150)",
          "id": {
            "authority": "EPSG",
            "code": 1154
          }
        },
        {
          "name": "World Geodetic System 1984 (G1674)",
          "id": {
            "authority": "EPSG",
            "code": 1155
          }
        },
        {
          "name": "World Geodetic System 1984 (G1762)",
          "id": {
            "authority": "EPSG",
            "code": 1156
          }
        },
        {
          "name": "World Geodetic System 1984 (G2139)",
          "id": {
            "authority": "EPSG",
            "code": 1309
          }
        },
        {
          "name": "World Geodetic System 1984 (G2296)",
          "id": {
            "authority": "EPSG",
            "code": 1383
          }
        }
      ],
      "ellipsoid": {
        "name": "WGS 84",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257223563
      },
      "accuracy": "2.0",
      "id": {
        "authority": "EPSG",
        "code": 6326
      }
    },
    "coordinate_system": {
      "subtype": "ellipsoidal",
      "axis": [
        {
          "name": "Geodetic latitude",
          "abbreviation": "Lat",
          "direction": "north",
          "unit": "degree"
        },
        {
          "name": "Geodetic longitude",
          "abbreviation": "Lon",
          "direction": "east",
          "unit": "degree"
        }
      ]
    },
    "id": {
      "authority": "EPSG",
      "code": 4326
    }
  },
  "conversion": {
    "name": "US NSIDC Equal Area north projection",
    "method": {
      "name": "Lambert Azimuthal Equal Area (Spherical)",
      "id": {
        "authority": "EPSG",
        "code": 1027
      }
    },
    "parameters": [
      {
        "name": "Latitude of natural origin",
        "value": 90,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8801
        }
      },
      {
        "name": "Longitude of natural origin",
        "value": 0,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8802
        }
      },
      {
        "name": "False easting",
        "value": 0,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": 0,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Easting",
        "abbreviation": "X",
        "direction": "south",
        "meridian": {
          "longitude": 90
        },
        "unit": "metre"
      },
      {
        "name": "Northing",
        "abbreviation": "Y",
        "direction": "south",
        "meridian": {
          "longitude": 180
        },
        "unit": "metre"
      }
    ]
  },
  "scope": "Environmental science - used as basis for EASE grid.",
  "area": "Northern hemisphere.",
  "bbox": {
    "south_latitude": 0,
    "west_longitude": -180,
    "north_latitude": 90,
    "east_longitude": 180
  },
  "id": {
    "authority": "EPSG",
    "code": 3973
  }
}

{'crs_wkt': 'PROJCRS["WGS 84 / NSIDC EASE-Grid North",BASEGEOGCRS["WGS '
            '84",ENSEMBLE["World Geodetic System 1984 ensemble",MEMBER["World '
            'Geodetic System 1984 (Transit)"],MEMBER["World Geodetic System '
            '1984 (G730)"],MEMBER["World Geodetic System 1984 '
            '(G873)"],MEMBER["World Geodetic System 1984 '
            '(G1150)"],MEMBER["World Geodetic System 1984 '
            '(G1674)"],MEMBER["World Geodetic System 1984 '
            '(G1762)"],MEMBER["World Geodetic System 1984 '
            '(G2139)"],MEMBER["World Geodetic System 1984 '
            '(G2296)"],ELLIPSOID["WGS '
            '84",6378137,298.257223563,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[2.0]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4326]],CONVERSION["US '
            'NSIDC Equal Area north projection",METHOD["Lambert Azimuthal '
            'Equal Area (Spherical)",ID["EPSG",1027]],PARAMETER["Latitude of '
            'natural '
            'origin",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
            'of natural '
            'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["False '
            'easting",0,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
            'northing",0,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting '
            '(X)",south,MERIDIAN[90,ANGLEUNIT["degree",0.0174532925199433]],ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
            '(Y)",south,MERIDIAN[180,ANGLEUNIT["degree",0.0174532925199433]],ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Environmental '
            'science - used as basis for EASE grid."],AREA["Northern '
            'hemisphere."],BBOX[0,-180,90,180]],ID["EPSG",3973]]'}