{
  "key": "btl_ammonium",
  "slug": "btl_ammonium",
  "label": "Bottle ammonium",
  "description": "Bottle ammonium",
  "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/AMONZZXX/",
  "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": 100,
    "declared_by": [
      "btl_ammonium"
    ]
  },
  "totals": {
    "n_values": 68242,
    "n_samples": 4360,
    "n_roots": 4360,
    "n_datasets": 1,
    "year_min": 2008,
    "year_max": 2025,
    "depth_min_m": 1,
    "depth_max_m": 3510
  },
  "series": [
    {
      "measurement_type": "btl_ammonium",
      "dataset_key": "calcofi_ctd-cast",
      "source_column": "nh4",
      "qual_column": null,
      "description": "Bottle ammonium",
      "units": "umol/L",
      "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/AMONZZXX/",
      "is_canonical": true,
      "n_values": 68242,
      "n_samples": 4360,
      "n_roots": 4360,
      "n_cells": 90,
      "n_cruises": 62,
      "year_min": 2008,
      "year_max": 2025,
      "depth_min_m": 1,
      "depth_max_m": 3510,
      "years": {
        "2008": 4744,
        "2009": 5251,
        "2010": 4478,
        "2011": 5115,
        "2012": 4418,
        "2013": 4927,
        "2014": 4168,
        "2015": 3144,
        "2016": 5037,
        "2017": 5007,
        "2018": 4151,
        "2019": 4012,
        "2020": 2548,
        "2021": 3594,
        "2022": 857,
        "2023": 379,
        "2024": 2876,
        "2025": 3536
      },
      "months": [
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        2735,
        3588,
        11719,
        989,
        1234,
        11036,
        5585,
        0,
        5031,
        10728,
        0
      ],
      "depth_bands": {
        "0-10": 5519,
        "10-50": 15456,
        "50-100": 13529,
        "100-200": 13245,
        "200-500": 17123,
        "500-1000": 3333,
        "1000-2000": 17,
        "2000+": 20
      },
      "qual": {
        "none": 68242
      },
      "qual_ok_n": 68242,
      "observed": {
        "min": 0,
        "p05": 0,
        "p50": 0,
        "p95": 0.6,
        "max": 33.58
      },
      "out_of_bounds": {
        "n": 0,
        "min": null,
        "max": null
      },
      "flags": [
        "no_flag_at_grain"
      ]
    }
  ],
  "related": [
    {
      "key": "r_ammonium",
      "why": "same_bottles"
    }
  ],
  "flags": [
    "no_label"
  ]
}