{
  "schemaVersion": "cartofreako-anthropocene-water-debris-experiment-v1",
  "lifecycle": "exploration-only",
  "checkedOn": "2026-08-10",
  "passFamily": "anthropocene-water-debris",
  "years": [
    {"year": 2025, "editionStatus": "complete", "dataThrough": "2025-12-31"},
    {"year": 2026, "editionStatus": "partial", "dataThrough": "2026-08-10"}
  ],
  "evidenceClasses": [
    {"id": "observed-shoreline", "renderDisposition": "context-only", "depthRule": "not-applicable"},
    {"id": "observed-surface-sample", "renderDisposition": "context-only", "depthRule": "observed-only"},
    {"id": "modeled-concentration", "renderDisposition": "context-only", "depthRule": "UNAVAILABLE-not-zero"},
    {"id": "modeled-river-emission", "renderDisposition": "UNAVAILABLE", "depthRule": "not-applicable"},
    {"id": "cleanup-operation", "renderDisposition": "context-only", "depthRule": "UNAVAILABLE-not-zero"},
    {"id": "depth-profile", "renderDisposition": "rendered-observation", "depthRule": "observed-only"}
  ],
  "sources": [
    {
      "id": "noaa-mdmap",
      "authority": "NOAA Marine Debris Program",
      "title": "Marine Debris Monitoring and Assessment Project",
      "url": "https://marinedebris.noaa.gov/our-work/monitoring/marine-debris-monitoring-and-assessment-project",
      "licenseSpdx": "UNAVAILABLE",
      "sourcePeriod": "ongoing; each exported shoreline survey retains its own date",
      "renderRole": "context-only",
      "supportsClasses": ["observed-shoreline"],
      "limitation": "No reviewed MDMAP observation export is bundled; absence is not zero debris."
    },
    {
      "id": "noaa-mdmap-national-survey-2024",
      "authority": "NOAA Office of Response and Restoration",
      "title": "NOAA MDMAP National Survey candidate sampling sites",
      "url": "https://www.fisheries.noaa.gov/inport/item/73092",
      "licenseSpdx": "CC0-1.0",
      "sourcePeriod": "2024 candidate sites; metadata reviewed 2026-08-10",
      "renderRole": "context-only",
      "supportsClasses": ["observed-shoreline"],
      "limitation": "Candidate survey sites are source-coverage context, not debris observations."
    },
    {
      "id": "ocean-cleanup-gpgp-overview",
      "authority": "The Ocean Cleanup",
      "title": "The Great Pacific Garbage Patch",
      "url": "https://theoceancleanup.com/great-pacific-garbage-patch/",
      "licenseSpdx": "UNAVAILABLE",
      "sourcePeriod": "multiple expeditions and models; page reviewed 2026-08-10",
      "renderRole": "context-only",
      "supportsClasses": ["observed-surface-sample", "modeled-concentration", "cleanup-operation", "depth-profile"],
      "limitation": "Page illustrations are not traced into geometry and summary values are not treated as a spatial field."
    },
    {
      "id": "ocean-cleanup-gpgp-2015-2022",
      "authority": "The Ocean Cleanup collaborators",
      "title": "Seven years into the North Pacific garbage patch supplementary data",
      "url": "https://figshare.com/s/c19216d64521d44a0e29",
      "licenseSpdx": "CC-BY-4.0",
      "sourcePeriod": "2015-2022 surface surveys",
      "renderRole": "context-only",
      "supportsClasses": ["observed-surface-sample", "modeled-concentration", "cleanup-operation"],
      "limitation": "The source is cited and its variables inform the evidence model, but the WAF-blocked file was not silently reconstructed or bundled."
    },
    {
      "id": "ocean-cleanup-depth-2020",
      "authority": "The Ocean Cleanup collaborators",
      "title": "First evidence of plastic fallout from the North Pacific Garbage Patch",
      "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC7203237/",
      "licenseSpdx": "CC-BY-4.0",
      "sourcePeriod": "2018-11-01 through 2018-12-04; published 2020",
      "renderRole": "observed-geometry",
      "supportsClasses": ["observed-surface-sample", "depth-profile"],
      "limitation": "Five eastern North Pacific depth stations do not establish a global depth field or a garbage-patch boundary.",
      "sourceReceiptSha256": "e0774175c3bd047386805e1d01b5614c5c0d2e54a7eefe86fcd36e7087479797"
    }
  ],
  "depthStations": [
    {"id": "station-1", "date": "2018-11-01", "longitude": -151.903, "latitude": 25.16, "maximumSampleDepthM": 1462, "sourceId": "ocean-cleanup-depth-2020", "evidenceClass": "depth-profile"},
    {"id": "station-2", "date": "2018-11-03", "longitude": -147.017, "latitude": 28.716, "maximumSampleDepthM": 1459, "sourceId": "ocean-cleanup-depth-2020", "evidenceClass": "depth-profile"},
    {"id": "station-3", "date": "2018-11-15", "longitude": -145.09, "latitude": 30.624, "maximumSampleDepthM": 2001, "sourceId": "ocean-cleanup-depth-2020", "evidenceClass": "depth-profile"},
    {"id": "station-4", "date": "2018-12-01", "longitude": -133.358, "latitude": 30.779, "maximumSampleDepthM": 2002, "sourceId": "ocean-cleanup-depth-2020", "evidenceClass": "depth-profile"},
    {"id": "station-5", "date": "2018-12-04", "longitude": -123.309, "latitude": 31.516, "maximumSampleDepthM": 1989, "sourceId": "ocean-cleanup-depth-2020", "evidenceClass": "depth-profile"}
  ],
  "layouts": [
    {"id": "cahill-keyes", "projectionDirectory": "cahill-keyes", "runtimeProjection": "cahill-keyes", "frame": [4400, 2200], "sourceBase": "water-ck-44-22", "suffix": "ck-44-22"},
    {"id": "authagraph", "projectionDirectory": "authagraph", "runtimeProjection": "authagraph", "frame": [4400, 1905.255888325765], "sourceBase": "water-authagraph-44-19.052559", "suffix": "authagraph-44-19.052559"},
    {"id": "dymaxion", "projectionDirectory": "dymaxion", "runtimeProjection": "dymaxion", "frame": [4400, 2078.460969082653], "sourceBase": "water-dymaxion-44-20.78461", "suffix": "dymaxion-44-20.78461"},
    {"id": "myriahedral", "projectionDirectory": "myriahedral", "runtimeProjection": "myriahedral-pacific", "frame": [4400, 2475], "sourceBase": "water-myriahedral-44-24.75", "suffix": "myriahedral-44-24.75"},
    {"id": "star-x", "projectionDirectory": "star-x", "runtimeProjection": "star-x", "frame": [3400, 4400], "sourceBase": "water-star-x-34-44", "suffix": "star-x-34-44"},
    {"id": "voronoi", "projectionDirectory": "voronoi", "runtimeProjection": "voronoi", "frame": [4400, 2291.666666666667], "sourceBase": "water-voronoi-44-22.916667", "suffix": "voronoi-44-22.916667"}
  ],
  "style": {"observedFieldMaximumOpacity": 0.6, "titleScale": 2},
  "claimBoundary": [
    "Only the five 2018 depth stations are rendered as observations.",
    "All shoreline, surface, model, and cleanup sources remain context-only unless a reviewed spatial package is bundled.",
    "A surface patch is not an observed three-dimensional body; unknown depth is UNAVAILABLE, never zero.",
    "The 2025 and 2026 labels identify atlas editions, not the observation year of every record.",
    "The experiment cannot enter standard generation, release, or publication without a separate promotion decision."
  ],
  "promotion": {"standardLifecycleAuthorized": false, "defaultGenerationAuthorized": false, "publicReleaseAuthorized": false}
}