{
  "key": "btl_chlorophyll_a",
  "slug": "btl_chlorophyll_a",
  "label": "Bottle chlorophyll-a",
  "description": "Bottle chlorophyll-a",
  "units": "ug/L",
  "units_nerc_p06": "http://vocab.nerc.ac.uk/collection/P06/current/UGPL/",
  "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
  "category": {
    "key": null,
    "name": "Productivity & Pigments",
    "icon": "cat-productivity",
    "realm": "env",
    "order": 4
  },
  "is_unified": false,
  "derivation": null,
  "climatology": true,
  "bounds": {
    "valid_min": 0,
    "valid_max": 100,
    "declared_by": [
      "btl_chlorophyll_a"
    ]
  },
  "totals": {
    "n_values": 112917,
    "n_samples": 9015,
    "n_roots": 9015,
    "n_datasets": 1,
    "year_min": 1993,
    "year_max": 2025,
    "depth_min_m": 1,
    "depth_max_m": 1122
  },
  "series": [
    {
      "measurement_type": "btl_chlorophyll_a",
      "dataset_key": "calcofi_ctd-cast",
      "source_column": "chl_a",
      "qual_column": null,
      "description": "Bottle chlorophyll-a",
      "units": "ug/L",
      "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/CPHLZZXX/",
      "is_canonical": true,
      "n_values": 112917,
      "n_samples": 9015,
      "n_roots": 9015,
      "n_cells": 91,
      "n_cruises": 127,
      "year_min": 1993,
      "year_max": 2025,
      "depth_min_m": 1,
      "depth_max_m": 1122,
      "years": {
        "1993": 1721,
        "1994": 3481,
        "1995": 2704,
        "1996": 4157,
        "1997": 3623,
        "1998": 4158,
        "1999": 3504,
        "2000": 3436,
        "2001": 3402,
        "2002": 3467,
        "2003": 3362,
        "2004": 3510,
        "2005": 3700,
        "2006": 3811,
        "2007": 3626,
        "2008": 3683,
        "2009": 3861,
        "2010": 3547,
        "2011": 4025,
        "2012": 3498,
        "2013": 3989,
        "2014": 3137,
        "2015": 4380,
        "2016": 4144,
        "2017": 3918,
        "2018": 3586,
        "2019": 2937,
        "2020": 2399,
        "2021": 2717,
        "2022": 2565,
        "2023": 3739,
        "2024": 2488,
        "2025": 2642
      },
      "months": [
        20269,
        7018,
        4541,
        23824,
        782,
        1479,
        19023,
        7958,
        1594,
        12128,
        14301,
        0
      ],
      "depth_bands": {
        "0-10": 11609,
        "10-50": 33296,
        "50-100": 31838,
        "100-200": 31783,
        "200-500": 4335,
        "500-1000": 32,
        "1000-2000": 24,
        "2000+": 0
      },
      "qual": {
        "none": 112917
      },
      "qual_ok_n": 112917,
      "observed": {
        "min": 0,
        "p05": 0.002,
        "p50": 0.18,
        "p95": 2,
        "max": 66.11
      },
      "out_of_bounds": {
        "n": 0,
        "min": null,
        "max": null
      },
      "flags": [
        "no_flag_at_grain"
      ]
    }
  ],
  "related": [
    {
      "key": "chlorophyll_a",
      "why": "same_bottles"
    }
  ],
  "flags": [
    "no_label"
  ]
}