{
  "manifest_version": "2.0.0",
  "collection": "propdata-open-antarctica",
  "collection_version": "2.0.0",
  "contract": "propdata-open-antarctica/2.0.0",
  "attribution": "Compiled and normalized by PropData from the attributed open sources.",
  "compilation_license": "CC BY 4.0. PropData does not claim ownership of third-party source facts; each source keeps its own licence and citation.",
  "rights_policy": "fail_closed: a source whose licence is not explicitly stated for the dataset is not redistributed",
  "sources": [
    {
      "source_id": "bas_add",
      "source_name": "SCAR Antarctic Digital Database (British Antarctic Survey / UK Polar Data Centre)",
      "source_url": "https://www.bas.ac.uk/project/add/",
      "dataset_version": "coastline polygons MR v7.12 (DOI 10.5285/c9c6d671-ad19-4a78-96b2-7d47e9bac46a); coastline polylines MR v7.12 (10.5285/37ad06ff-888d-452c-be85-018e59600103); rock outcrop MR v7.11 (10.5285/3f0c400f-04b9-4819-98cb-f6b53716aca5); moraine MR v7.10 (10.5285/4ed44a66-a39c-424a-b127-60c3b198831a)",
      "retrieved_at": "2026-09-28T16:27:34Z",
      "license": "CC BY 4.0",
      "license_url": "https://creativecommons.org/licenses/by/4.0/",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "required_citation": "Gerrish, L., Ireland, L., Fretwell, P., Cooper, P., & Skachkova, A. (2026). Medium resolution vector polygons / polylines of the Antarctic coastline (Version 7.12) [Data set]. NERC EDS UK Polar Data Centre. Skachkova, A., Gerrish, L., Fretwell, P., & Cooper, P. (2025). Medium resolution vector polygons of Antarctic rock outcrop (Version 7.11). Gerrish, L., Fretwell, P., & Cooper, P. (2024). Medium resolution Antarctic moraine dataset (Version 7.10). Short form: 'Data from the SCAR Antarctic Digital Database, 2026'.",
      "spatial_resolution": "medium-resolution vectors, EPSG:3031",
      "temporal_coverage": "release 7.12 (12 May 2026); rock outcrop 7.11 (Nov 2025); moraine 7.10 (Nov 2024)",
      "fields_supplied": [
        "terrain.surface_class",
        "terrain.on_moraine",
        "cryosphere.grounding_line.distance_km",
        "cryosphere.ice_shelf.on_floating_ice",
        "geography.coastline.distance_km"
      ],
      "storage_method": "normalized PostGIS vectors (open_aq_physical_features) + derived subdivided index; API-only",
      "notes": "Grounding line and ice shelves are classes within the coastline layers (surface attribute). No ADD glacier/drainage-basin layer exists. Data was changed (reprojected storage unchanged, subdivided index derived) as required to state under CC BY 4.0 s3(a)(1)(B). Not for navigation."
    },
    {
      "source_id": "ats",
      "source_name": "Antarctic Treaty Secretariat: Antarctic Protected Areas database and APA shapefile",
      "source_url": "https://www.ats.aq/e/protected.html",
      "dataset_version": "APA database (live JSON https://www.ats.aq/devphBackEnd/api/apa/search?lang=1); boundaries: apa_shape_2024 (https://documents.ats.aq/gis/apa_shape_2024.zip, modified 2024-12-04)",
      "retrieved_at": "2026-09-28T16:45:54Z",
      "license": "CC BY 4.0",
      "license_url": "https://creativecommons.org/licenses/by/4.0/legalcode.en",
      "license_evidence": "https://www.ats.aq/e/copyright.html ('ATS copyrighted material maybe used as long as the source is indicated. CC BY 4.0'); shapefile .qmd <license>Creative Commons Attribution 4.0</license>",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "required_citation": "Source: Antarctic Treaty Secretariat, Antarctic Protected Areas database (https://www.ats.aq/devph/en/apa-database) and APA shapefile 2024.",
      "spatial_resolution": "ASPA/ASMA polygons as published; ATS centre points; HSM points",
      "temporal_coverage": "current through ATCM 48 (2026) for identity/status; boundaries as of the 2024 shapefile",
      "fields_supplied": [
        "protected area identity, type, number, name, status, proponents, designations, management plan URL, summary, boundary",
        "historic site identity, number, name, status, location, proponents, designations, summary"
      ],
      "storage_method": "PostGIS (open_aq_protected_areas, open_aq_historic_sites) + GeoJSON/CSV/Parquet downloads",
      "notes": "ASPA, ASMA and HSM are kept as distinct types. ASPA 183 and 184 (designated 2026) have no boundary in the latest official shapefile: published without boundary, membership not computed. De-designated areas are published with status de_designated and no boundary. One HSM record without coordinates is rejected."
    },
    {
      "source_id": "wikidata",
      "source_name": "Wikidata (named places south of 60°S)",
      "source_url": "https://www.wikidata.org/",
      "dataset_version": "per record: source_revision = wikidata:rev:<lastrevid>",
      "retrieved_at": "see manifest-v2.json source_versions.wikidata.retrieved_at",
      "license": "CC0 1.0",
      "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": false,
      "required_citation": "Named places from Wikidata (CC0).",
      "spatial_resolution": "points (as published)",
      "temporal_coverage": "snapshot at retrieval",
      "fields_supplied": [
        "named place identity, name, language labels, aliases, feature type, coordinates, SCAR place ID cross-reference (P3230), GNIS Antarctica ID (P804)"
      ],
      "storage_method": "PostGIS (open_aq_named_places) + GeoJSON/CSV/Parquet downloads",
      "notes": "Labels are language labels, not national naming authorities. SCAR place IDs are identifiers only; no SCAR gazetteer content is copied."
    },
    {
      "source_id": "bedmap3",
      "source_name": "BEDMAP3 - Ice thickness, bed and surface elevation for Antarctica - gridding products",
      "source_url": "https://doi.org/10.5285/2d0e4791-8e20-46a3-80e4-f5f6716025d2",
      "dataset_version": "1.0",
      "retrieved_at": "2026-09-28",
      "license": "CC BY 4.0",
      "license_url": "https://creativecommons.org/licenses/by/4.0/",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "required_citation": "Pritchard, H., Fretwell, P., Fremand, A., et al. (2024). BEDMAP3 - Ice thickness, bed and surface elevation for Antarctica - gridding products (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/2d0e4791-8e20-46a3-80e4-f5f6716025d2 ; Pritchard, H.D., Fretwell, P.T., Fremand, A.C. et al. Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica. Sci Data 12, 414 (2025). https://doi.org/10.1038/s41597-025-04672-y",
      "spatial_resolution": "500 m, EPSG:3031",
      "temporal_coverage": "compilation of surveys to 2024",
      "fields_supplied": [
        "subsurface.bed_elevation_m",
        "subsurface.surface_elevation_m",
        "subsurface.ice_thickness_m",
        "subsurface.mask_class",
        "terrain.surface_elevation_m",
        "terrain.slope_deg (derived)"
      ],
      "storage_method": "derived AQG1 int16 grid tiles in private R2 (propdata-open-antarctica/grids/); API-only, one point per request",
      "notes": "Cell values copied unchanged. slope_deg is PropData-derived (central difference of the 500 m surface). Mask codes per the BAS record: 1 grounded ice, 2 transiently grounded ice shelf, 3 floating ice shelf, 4 rock. The vertical datum is not stated in the dataset record, so none is claimed. Replaces BedMachine v4 for v2 (see deferred)."
    },
    {
      "source_id": "its_live",
      "source_name": "ITS_LIVE annual ice velocity mosaic v2.1, region RGI19A (NASA MEaSUREs)",
      "source_url": "https://registry.opendata.aws/its-live-data/",
      "dataset_version": "v2.1 annual 2024 (s3://its-live-data/velocity_mosaic/v2.1/annual/cog/ITS_LIVE_velocity_120m_RGI19A_2024_V02.1_{vx,vy}.tif, created 2025-10-07)",
      "retrieved_at": "2026-09-28",
      "license": "CC0 1.0",
      "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": false,
      "required_citation": "Gardner, A. S., Fahnestock, M., Greene, C. A., Kennedy, J. H., Liukis, M., López, L. A. & Scambos, T. (2025). MEaSUREs ITS_LIVE Regional Glacier and Ice Sheet Surface Velocities (NSIDC-0776, Version 2). https://doi.org/10.5067/JQ6337239C96 ; Velocity data generated using auto-RIFT (Gardner et al., 2018) and provided by the NASA MEaSUREs ITS_LIVE project.",
      "spatial_resolution": "120 m source; published on a 480 m grid (nearest source pixel, no averaging)",
      "temporal_coverage": "2024 annual mosaic",
      "fields_supplied": [
        "cryosphere.ice_velocity.speed_m_per_year",
        "vx/vy",
        "flow_direction_deg (derived bearing)"
      ],
      "storage_method": "derived AQG1 int16 grid tiles (0.6 m/yr step) in private R2; API-only",
      "notes": "Annual observation product, not real-time movement. COG overviews are not used because their resampling method is not declared. Replaces NSIDC-0720 for v2 (see deferred)."
    },
    {
      "source_id": "scar_composite_gazetteer",
      "source_name": "SCAR Composite Gazetteer of Antarctica (placenames.aq, AADC)",
      "status": "deferred",
      "redistribution_allowed": null,
      "notes": "No licence is stated on the dataset itself; evidence of CC BY is indirect (AADC site footer, third-party documentation). Fail-closed: not redistributed until SCAR/AADC confirm terms. Wikidata's P3230 cross-references are kept."
    },
    {
      "source_id": "bedmachine_v4",
      "source_name": "MEaSUREs BedMachine Antarctica v4 (NSIDC-0756)",
      "status": "deferred",
      "redistribution_allowed": true,
      "notes": "Rights are clean (NASA CC0 + citation) but retrieval requires a NASA Earthdata login, which is not available to this pipeline."
    },
    {
      "source_id": "nsidc_0720",
      "source_name": "MEaSUREs Annual Antarctic Ice Velocity Maps (NSIDC-0720)",
      "status": "deferred",
      "redistribution_allowed": true,
      "notes": "Rights are clean but retrieval requires a NASA Earthdata login."
    },
    {
      "source_id": "usgs_lima",
      "source_name": "USGS Landsat Image Mosaic of Antarctica (LIMA), Center-Filled",
      "source_url": "https://lima.usgs.gov/",
      "dataset_version": "Center-Filled LIMA 240 m (jp2_100pct.zip, 2008-04-11, sha256 e6d42359c59710d3986cfef6f7524e14a34cd6424b1592a44df4b6895340d8c1); PropData derivatives lima-cf-240m-v1 (WebP 1024/2048/3072 px, EPSG:3031)",
      "retrieved_at": "2026-09-28T17:37:30Z",
      "license": "Public domain (U.S. Government work)",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": false,
      "license_evidence": "lima.usgs.gov/access.php, checked 2026-09-28: 'public domain' and can be used freely and without acknowledgement; credit to the LIMA Project appreciated.",
      "status": "in_use",
      "fields_supplied": [
        "optional satellite basemap (static mosaic, not current imagery): Landsat 7 ETM+, primarily 1999–2003; MODIS MOA south of 82.5°S"
      ],
      "notes": "Served from PropData R2 via /v1/open/antarctica/satellite; visible label: satellite mosaic, never live."
    },
    {
      "source_id": "nsidc_g10016",
      "source_name": "NOAA/NSIDC G10016 Version 4: Near-Real-Time Climate Data Record of Passive Microwave Sea Ice Concentration",
      "source_url": "https://nsidc.org/data/g10016/versions/4",
      "dataset_version": "v04r00, AMSR2 (GCOM-W1), 25 km, EPSG:3412, daily; DOI 10.7265/tm2n-1m33",
      "retrieved_at": "2026-09-28T20:40:00Z",
      "license": "No constraints on data access or use (NetCDF license attribute); citation required",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "required_citation": "Meier, W. N., Fetterer, F., Windnagel, A. K., Stewart, J. S. & Stafford, T. (2026). Near-Real-Time NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration (G10016, Version 4). NSIDC. https://doi.org/10.7265/tm2n-1m33",
      "status": "in_use",
      "fields_supplied": [
        "sea-ice concentration % per 25 km ocean cell (daily source day; land/coast/lake not applicable via the G02202 V6 pss25 surface mask)"
      ],
      "notes": "Ingested hourly by the propdata-antarctica-live Worker; raw NetCDF + derived grid in R2; /v1/open/antarctica/sea-ice."
    },
    {
      "source_id": "obis_wildlife",
      "source_name": "OBIS (Ocean Biodiversity Information System): rights-allowlisted Antarctic datasets",
      "source_url": "https://obis.org/",
      "dataset_version": "328 datasets, snapshot aq-wildlife-1.0.0+20260928T224106Z; per-dataset licence, citation and verdict in wildlife-sources-v1.json",
      "retrieved_at": "2026-09-28T21:45:50Z",
      "license": "CC0 1.0 / CC BY 4.0 / ODC-By 1.0 (per dataset)",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "status": "in_use",
      "fields_supplied": [
        "676,745 historical wildlife occurrence records (6,482 species)"
      ],
      "notes": "Dataset-level allowlist; non-commercial, unlicensed and animal-tracking datasets are rejected. Records are historical, not live, and never evidence of absence."
    },
    {
      "source_id": "worms_vernacular",
      "source_name": "WoRMS (World Register of Marine Species) vernacular names",
      "source_url": "https://www.marinespecies.org/",
      "license": "CC BY 4.0",
      "redistribution_allowed": true,
      "derived_values_allowed": true,
      "attribution_required": true,
      "status": "in_use",
      "fields_supplied": [
        "English common names for penguins, seals, cetaceans and seabirds"
      ],
      "notes": "Names only; taxonomy comes from the OBIS records."
    },
    {
      "source_id": "mapppd",
      "source_name": "MAPPPD (Mapping Application for Penguin Populations and Projected Dynamics)",
      "source_url": "https://www.penguinmap.com/",
      "status": "deferred",
      "redistribution_allowed": false,
      "notes": "candidate_requires_permission: published terms restrict commercial use without express written consent; no MAPPPD data is used."
    },
    {
      "source_id": "v1_sources",
      "source_name": "v1 facility layer sources (Wikidata, REMA v2.0, EGM2008, Natural Earth)",
      "status": "unchanged",
      "notes": "See open-antarctica-sources.json."
    }
  ]
}