{
  "key": "nitrite",
  "slug": "nitrite",
  "label": "Nitrite concentration",
  "description": "Nitrite concentration",
  "units": "umol/L",
  "units_nerc_p06": "http://vocab.nerc.ac.uk/collection/P06/current/UPOX/",
  "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/NTRIZZXX/",
  "category": {
    "key": null,
    "name": "Nutrients & Chemistry",
    "icon": "cat-nutrients",
    "realm": "env",
    "order": 2
  },
  "is_unified": false,
  "derivation": null,
  "climatology": true,
  "bounds": {
    "valid_min": 0,
    "valid_max": 10,
    "declared_by": [
      "nitrite"
    ]
  },
  "totals": {
    "n_values": 364442,
    "n_samples": 364442,
    "n_roots": 14497,
    "n_datasets": 1,
    "year_min": 1959,
    "year_max": 2021,
    "depth_min_m": 0,
    "depth_max_m": 5351
  },
  "series": [
    {
      "measurement_type": "nitrite",
      "dataset_key": "calcofi_bottle",
      "source_column": "no2u_m",
      "qual_column": "no2q",
      "description": "Nitrite concentration",
      "units": "umol/L",
      "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/NTRIZZXX/",
      "is_canonical": true,
      "n_values": 364442,
      "n_samples": 364442,
      "n_roots": 14497,
      "n_cells": 186,
      "n_cruises": 228,
      "year_min": 1959,
      "year_max": 2021,
      "depth_min_m": 0,
      "depth_max_m": 5351,
      "years": {
        "1959": 143,
        "1961": 2676,
        "1962": 1458,
        "1963": 571,
        "1964": 4078,
        "1965": 1612,
        "1969": 7956,
        "1970": 682,
        "1971": 625,
        "1972": 10278,
        "1974": 2483,
        "1976": 87,
        "1977": 973,
        "1978": 15763,
        "1981": 2327,
        "1983": 2920,
        "1984": 30742,
        "1985": 7199,
        "1986": 8495,
        "1987": 10518,
        "1988": 9700,
        "1989": 9343,
        "1990": 7612,
        "1991": 7841,
        "1992": 8250,
        "1993": 8040,
        "1994": 7684,
        "1995": 7512,
        "1996": 7921,
        "1997": 7886,
        "1998": 8544,
        "1999": 7694,
        "2000": 7725,
        "2001": 7716,
        "2002": 7475,
        "2003": 8224,
        "2004": 7714,
        "2005": 7771,
        "2006": 7866,
        "2007": 7640,
        "2008": 7644,
        "2009": 8028,
        "2010": 6916,
        "2011": 7658,
        "2012": 7098,
        "2013": 7436,
        "2014": 6306,
        "2015": 7154,
        "2016": 7592,
        "2017": 7558,
        "2018": 6613,
        "2019": 5682,
        "2020": 4938,
        "2021": 2075
      },
      "months": [
        57528,
        28838,
        21042,
        57721,
        17922,
        9738,
        54217,
        26922,
        11258,
        39495,
        37791,
        1970
      ],
      "depth_bands": {
        "0-10": 28258,
        "10-50": 74626,
        "50-100": 67559,
        "100-200": 75647,
        "200-500": 92808,
        "500-1000": 23454,
        "1000-2000": 1473,
        "2000+": 617
      },
      "qual": {
        "4": 39,
        "8": 18189,
        "none": 346214
      },
      "qual_ok_n": 346253,
      "observed": {
        "min": 0,
        "p05": 0,
        "p50": 0.01,
        "p95": 0.22,
        "max": 8.19
      },
      "out_of_bounds": {
        "n": 0,
        "min": null,
        "max": null
      },
      "flags": []
    }
  ],
  "related": [
    {
      "key": "btl_nitrite",
      "why": "same_bottles"
    }
  ],
  "flags": [
    "no_label"
  ]
}