{
  "dataset": "NOAA ETOPO1 ice-surface global relief (2009), ERDDAP etopo180",
  "dataset_url": "https://coastwatch.pfeg.noaa.gov/erddap/info/etopo180/index.html",
  "citation": "Amante, C. and B. W. Eakins (2009), NOAA Technical Memorandum NESDIS NGDC-24.",
  "datum": "WGS84 horizontal; mean sea level vertical, as documented by the serving dataset.",
  "rights": "NOAA ERDDAP metadata permit free use and redistribution; retain attribution and dataset limitations.",
  "limitation": "Older compiled modern relief, deliberately subsampled for orientation. Grid spacing is not measurement accuracy. No sediment, erosion, land-motion, ice or ocean-connectivity reconstruction is applied. Negative inland elevations may also be highlighted. No archaeological detection or dated coastline is inferred.",
  "grids": [
    {
      "id": "world",
      "label": "World shelves",
      "path": "data/submerged/world.i16",
      "width": 1081,
      "height": 466,
      "west": -180.0,
      "east": 180.0,
      "south": -70.0,
      "north": 85.0,
      "step_degrees": 0.3333333333333428,
      "minimum": -10108,
      "maximum": 6426,
      "nodata": 32767,
      "encoding": "signed little-endian int16 metres; rows north to south, columns west to east; sample/node registered",
      "source_path": "data/submerged/etopo1/world.nc",
      "source_sha256": "a1552a72d583ca6ea9efd25896f54cdf003b49883b00e5576d6e67ddab2c4277",
      "sha256": "9058da8398ea9d18120a3ef23b25abfb153b3c027f6fbaafd21886ae7c2e4ec3",
      "request_url": "https://coastwatch.pfeg.noaa.gov/erddap/griddap/etopo180.nc?altitude[(-70):20:(85)][(-180):20:(180)]",
      "retrieved": "2026-09-19"
    },
    {
      "id": "northsea",
      "label": "North Sea",
      "path": "data/submerged/northsea.i16",
      "width": 381,
      "height": 241,
      "west": -6.0,
      "east": 13.0,
      "south": 49.0,
      "north": 61.0,
      "step_degrees": 0.05000000000001137,
      "minimum": -1182,
      "maximum": 1809,
      "nodata": 32767,
      "encoding": "signed little-endian int16 metres; rows north to south, columns west to east; sample/node registered",
      "source_path": "data/submerged/etopo1/northsea.nc",
      "source_sha256": "9033c8afee1d89946ed76efef706f8ec00a0ee94589db41a7fbde7558a2ddfc6",
      "sha256": "2c754b485e44f749320ba62f5fa26ccc2110f035347288e31025f9c6a0f84c72",
      "request_url": "https://coastwatch.pfeg.noaa.gov/erddap/griddap/etopo180.nc?altitude[(49):3:(61)][(-6):3:(13)]",
      "retrieved": "2026-09-19"
    },
    {
      "id": "sunda",
      "label": "Sunda shelf",
      "path": "data/submerged/sunda.i16",
      "width": 261,
      "height": 301,
      "west": 94.0,
      "east": 120.0,
      "south": -10.0,
      "north": 20.0,
      "step_degrees": 0.10000000000002274,
      "minimum": -7102,
      "maximum": 3008,
      "nodata": 32767,
      "encoding": "signed little-endian int16 metres; rows north to south, columns west to east; sample/node registered",
      "source_path": "data/submerged/etopo1/sunda.nc",
      "source_sha256": "5f98529384f8586d813c324623391692e7b0857473d2cd9a8b9894b21347b72a",
      "sha256": "f2a830dd0eb631dbddb701a55e0f399ab6655a541a754d5ff513b3c27b65c122",
      "request_url": "https://coastwatch.pfeg.noaa.gov/erddap/griddap/etopo180.nc?altitude[(-10):6:(20)][(94):6:(120)]",
      "retrieved": "2026-09-19"
    },
    {
      "id": "khambhat",
      "label": "Gujarat / Khambhat",
      "path": "data/submerged/khambhat.i16",
      "width": 181,
      "height": 181,
      "west": 68.0,
      "east": 74.0,
      "south": 18.0,
      "north": 24.0,
      "step_degrees": 0.03333333333333144,
      "minimum": -3541,
      "maximum": 1280,
      "nodata": 32767,
      "encoding": "signed little-endian int16 metres; rows north to south, columns west to east; sample/node registered",
      "source_path": "data/submerged/etopo1/khambhat.nc",
      "source_sha256": "8018b1383f85b747c77c89531223365706f0edc0beb91371412333f346f93db0",
      "sha256": "d068e4909020ee36a2a9354747a7f7adf9d4ffc1b0c537fca67ac2a6764cfea2",
      "request_url": "https://coastwatch.pfeg.noaa.gov/erddap/griddap/etopo180.nc?altitude[(18):2:(24)][(68):2:(74)]",
      "retrieved": "2026-09-19"
    }
  ]
}