{
  "key": "salinity_btl",
  "slug": "salinity_btl",
  "label": "Bottle salinity",
  "description": "Bottle salinity",
  "units": "PSU",
  "units_nerc_p06": "http://vocab.nerc.ac.uk/collection/P06/current/PSUX/",
  "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/PSLTZZ01/",
  "category": {
    "key": null,
    "name": "Physical Oceanography",
    "icon": "cat-physical",
    "realm": "env",
    "order": 1
  },
  "is_unified": false,
  "derivation": null,
  "climatology": true,
  "bounds": {
    "valid_min": 0,
    "valid_max": 45,
    "declared_by": [
      "salinity_btl"
    ]
  },
  "totals": {
    "n_values": 150917,
    "n_samples": 9041,
    "n_roots": 9041,
    "n_datasets": 1,
    "year_min": 1993,
    "year_max": 2025,
    "depth_min_m": 1,
    "depth_max_m": 3510
  },
  "series": [
    {
      "measurement_type": "salinity_btl",
      "dataset_key": "calcofi_ctd-cast",
      "source_column": "salt_b",
      "qual_column": null,
      "description": "Bottle salinity",
      "units": "PSU",
      "nerc_p01": "http://vocab.nerc.ac.uk/collection/P01/current/PSLTZZ01/",
      "is_canonical": true,
      "n_values": 150917,
      "n_samples": 9041,
      "n_roots": 9041,
      "n_cells": 91,
      "n_cruises": 127,
      "year_min": 1993,
      "year_max": 2025,
      "depth_min_m": 1,
      "depth_max_m": 3510,
      "years": {
        "1993": 2398,
        "1994": 4897,
        "1995": 3687,
        "1996": 5515,
        "1997": 4979,
        "1998": 5732,
        "1999": 4847,
        "2000": 4758,
        "2001": 4701,
        "2002": 4810,
        "2003": 4653,
        "2004": 4819,
        "2005": 5165,
        "2006": 5182,
        "2007": 4719,
        "2008": 4970,
        "2009": 5300,
        "2010": 4739,
        "2011": 5542,
        "2012": 4787,
        "2013": 5018,
        "2014": 4276,
        "2015": 5873,
        "2016": 5125,
        "2017": 5119,
        "2018": 4660,
        "2019": 3977,
        "2020": 3233,
        "2021": 3247,
        "2022": 2337,
        "2023": 4957,
        "2024": 3317,
        "2025": 3578
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      "months": [
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        10968,
        2203,
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        19612,
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      "depth_bands": {
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        "10-50": 32820,
        "50-100": 31210,
        "100-200": 31061,
        "200-500": 36493,
        "500-1000": 7572,
        "1000-2000": 78,
        "2000+": 24
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      "observed": {
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        "p05": 33.0603,
        "p50": 33.632,
        "p95": 34.26102,
        "max": 34.7406
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      "out_of_bounds": {
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        "min": null,
        "max": null
      },
      "flags": [
        "no_flag_at_grain"
      ]
    }
  ],
  "related": [
    {
      "key": "salinity",
      "why": "same_bottles"
    },
    {
      "key": "salinity_pss78",
      "why": "same_bottles"
    }
  ],
  "flags": [
    "no_label"
  ]
}