{
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    "release_date": "2026-10-05",
    "doi": null,
    "concept_doi": "10.5281/zenodo.22281994",
    "citation": "CalCOFI (2026). CalCOFI Integrated Database, release v2026.10.05 [Data set]. Scripps Institution of Oceanography, NOAA Fisheries, and California Department of Fish and Wildlife. https://calcofi.io/db-schema/?v=v2026.10.05",
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    "provider": {
      "key": "cce-lter",
      "short": "CCE-LTER",
      "name": "California Current Ecosystem Long Term Ecological Research",
      "url": "https://ccelter.ucsd.edu",
      "registered": true
    },
    "dataset": "iron",
    "dataset_name": "CCE-LTER Dissolved Iron (CalCOFI Cruises)",
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      "name": "Nutrients & Chemistry",
      "realm": "env",
      "icon": "cat-nutrients",
      "order": 2,
      "description": "Nitrate, nitrite, phosphate, silicate and ammonium from bottle samples; particulate and total organic carbon and nitrogen, nitrate isotopes, and trace metals (iron)",
      "registered": true
    },
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    "description_md": "Dissolved iron (Fe) concentrations from CalCOFI cruises in the southern California Current System, Nov. 2002 - July 2004 (completed). Surface (0 m) samples collected with a pole sampler, analyzed by FeLume flow-injection analysis. The source also carries total iron (no real values) and a shipboard iron-addition bioassay response (Chla response to Fe+, units unconfirmed); neither is released yet.\n",
    "keywords": ["Dissolved Nutrients", "Phytoplankton Biomass and Diversity", "CalCOFI Network", "Iron"],
    "attribution": {
      "citation_main": "California Current Ecosystem LTER, CalCOFI - Scripps Institution of Oceanography, and K. Barbeau. 2017. Measurements of dissolved inorganic concentrations of nutrient iron and of iron limitation at selected stations and depths from CalCOFI cruises in the California Current System, Nov. 2002 - July 2004 (completed) ver 3. Environmental Data Initiative. https://doi.org/10.6073/pasta/63c4e57f87861db3acaf80d1dec103e1.\n",
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      "acknowledgement": null,
      "contact": "kbarbeau@ucsd.edu",
      "pi_names": ["Katherine Barbeau"],
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          "name": "Katherine Barbeau",
          "organization": "Scripps Institution of Oceanography (SIO)",
          "orcid": null,
          "email": "kbarbeau@ucsd.edu",
          "role": "lead"
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      "source_accessed": "2026-10-01"
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      "workflow": "https://calcofi.io/workflows/ingest_cce-lter_iron.html",
      "page": "https://calcofi.io/datasets/cce-lter_iron/"
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    "coverage": {
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      "temporal": "2002-11 to 2004-07",
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      "year_max": 2004,
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          "year": 2002,
          "n_obs": 31,
          "n_roots": 31
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          "n_obs": 84,
          "n_roots": 84
        },
        {
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          "n_obs": 55,
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      "spatial": "29.9–35.1°N, 124.3–117.3°W",
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        "lat_max": 35.088,
        "lon_min": -124.323,
        "lon_max": -117.307
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      "n_stations": 54,
      "n_variables": 1,
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      "depth_min_m": 0,
      "depth_max_m": 0,
      "variables": [
        {
          "name": "dissolved_iron",
          "units": "nmol/L",
          "uri": null,
          "category": "Nutrients & Chemistry"
        }
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      "taxa": [],
      "life_stages": [],
      "contributes_to": []
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        "format": "html",
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        "status": "current"
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        "portal": "edi",
        "title": "source",
        "status": "external"
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    "registrations": [
      {
        "portal": "erddap",
        "status": "planned",
        "issues": []
      },
      {
        "portal": "obis",
        "status": "n/a",
        "issues": []
      },
      {
        "portal": "edi",
        "status": "n/a",
        "issues": []
      },
      {
        "portal": "ncei",
        "status": "n/a",
        "issues": []
      },
      {
        "portal": "caloos",
        "status": "planned",
        "issues": []
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        "status": "published",
        "url": "https://doi.org/10.5281/zenodo.22281994",
        "id": "10.5281/zenodo.22281994",
        "title": "CalCOFI Integrated Database (the release deposit)",
        "note": "as part of the integrated database release"
      }
    ],
    "status": {
      "stage": "ingested",
      "priority": "should-complete",
      "gh_issue": "https://github.com/CalCOFI/workflows/issues/82",
      "blockers": "Ingested and rendered in R (PR #116 review fixes, 2026-10-01): 170 samples, 170 dissolved_iron obs, validation PASSED. Only dissolved_iron is released: chl_response_to_fe is held out until provider Q01 (units/meaning; open + blocker) and total_iron is not registered (no real value in EDI revision 3; 170/170 are the -999 sentinel). Still open with the provider (Kathy Barbeau): Q01, Q04 (units, detection limit, 0.05 floor), Q07 (operational definition, contamination/QC); proposed pending confirmation: Q02 (PST = fixed UTC-8), Q05 (dissolved_iron valid_max 50), Q06 (-999 sentinel). Sample key is study_name-index_number (not row position).",
      "publish_policy": "Archive of record: CCE-LTER's EDI package knb-lter-cce.21.3 (Barbeau), the ingest's source -- never republished by CalCOFI. OBIS does not apply (pure chemistry, no occurrences). CalOOS: planned (this holding originated from the CalOOS dataset-inventory intake).",
      "updated": "2026-10-01",
      "questions_open": 6,
      "questions_dataset": []
    }
  }
}
