{
  "key": "alkalinity",
  "slug": "alkalinity",
  "label": "Total alkalinity",
  "description": "Total alkalinity",
  "units": "umol/kg",
  "units_nerc_p06": "http://vocab.nerc.ac.uk/collection/P06/current/KGUM/",
  "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/",
  "category": {
    "key": null,
    "name": "Carbonate System",
    "icon": "cat-carbonate",
    "realm": "env",
    "order": 3
  },
  "is_unified": false,
  "derivation": null,
  "climatology": true,
  "bounds": {
    "valid_min": 0,
    "valid_max": 5000,
    "declared_by": [
      "alkalinity"
    ]
  },
  "totals": {
    "n_values": 937,
    "n_samples": 726,
    "n_roots": 289,
    "n_datasets": 1,
    "year_min": 1984,
    "year_max": 2021,
    "depth_min_m": 1,
    "depth_max_m": 3500
  },
  "series": [
    {
      "measurement_type": "alkalinity",
      "dataset_key": "calcofi_dic",
      "source_column": "TA",
      "qual_column": "ta_flag",
      "description": "Total alkalinity",
      "units": "umol/kg",
      "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/",
      "is_canonical": true,
      "n_values": 937,
      "n_samples": 726,
      "n_roots": 289,
      "n_cells": 37,
      "n_cruises": 92,
      "year_min": 1984,
      "year_max": 2021,
      "depth_min_m": 1,
      "depth_max_m": 3500,
      "years": {
        "1984": 70,
        "1985": 21,
        "1986": 17,
        "1987": 16,
        "1988": 32,
        "1989": 28,
        "1990": 40,
        "1991": 31,
        "1992": 36,
        "1993": 9,
        "1994": 4,
        "1995": 2,
        "1996": 4,
        "1997": 4,
        "1998": 9,
        "1999": 4,
        "2000": 4,
        "2001": 4,
        "2011": 41,
        "2012": 49,
        "2014": 68,
        "2016": 158,
        "2017": 127,
        "2018": 50,
        "2019": 34,
        "2020": 59,
        "2021": 16
      },
      "months": [
        189,
        143,
        18,
        80,
        16,
        36,
        130,
        61,
        23,
        64,
        176,
        1
      ],
      "depth_bands": {
        "0-10": 170,
        "10-50": 432,
        "50-100": 57,
        "100-200": 105,
        "200-500": 108,
        "500-1000": 61,
        "1000-2000": 0,
        "2000+": 2
      },
      "qual": {
        "2": 918,
        "3": 13,
        "4": 6
      },
      "qual_ok_n": 918,
      "observed": {
        "min": 2163.8,
        "p05": 2214.9,
        "p50": 2236.2,
        "p95": 2313.12,
        "max": 2432.6
      },
      "out_of_bounds": {
        "n": 0,
        "min": null,
        "max": null
      },
      "flags": []
    }
  ],
  "related": [
    {
      "key": "alkalinity_rep1",
      "why": "replicate_vs_mean"
    }
  ],
  "flags": [
    "no_label"
  ]
}