{
  "url": "https://openlegislation.uk/eu-decision-2018-229/annex/division-1/division-15",
  "json_url": "https://openlegislation.uk/eu-decision-2018-229/annex/division-1/division-15.json",
  "legislation": "eudn/2018/229",
  "legislation_title": "Commission Decision (EU) 2018/229 of 12 February 2018 establishing, pursuant to Directive 2000/60/EC of the European Parliament and of the Council, the values of the Member State monitoring system classifications as a result of the intercalibration exercise and repealing Commission Decision 2013/480/EU (notified under document C(2018) 696) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2018-229",
  "path": "annex/division/1/division/15",
  "kind": "division",
  "number": null,
  "heading": "Water category Coastal waters Geographical Intercalibration Group North East Atlantic",
  "text": "Description of types that have been intercalibrated\nType\nCharacterisation\nSalinity (psu)Tidal range (m)Depth (m)\nCurrent Velocity (knots) Exposure\nMixingResidence Time\nType for opportunistic blooming macroalgae, seagrasses, saltmarshes and benthic invertebrate fauna\nNEA 1/26\nOpen oceanic or enclosed seas, exposed or sheltered, euhaline, shallow\n< 30\nMesotidal 1-5\n< 30\nMedium 1 — 3\nExposed or sheltered\nFully mixed\nDays (to weeks in the Wadden Sea)\nSubtypes for intertidal macroalgae\nNEA 1/26 A2\nOpen oceanic, exposed or sheltered, euhaline, shallow, Temperate waters (mainly, > 13 oC) and high irradiance (mainly, PAR > 29 Mol/m2 day)\n> 30\nMesotidal 1 — 5\n< 30\nMedium 1 — 3\nExposed or sheltered\nFully mixed Days\nNEA 1/26 B21\nOpen oceanic or enclosed seas, exposed or sheltered, euhaline, shallow Cool waters (mainly, < 13 oC) and medium irradiance (mainly, PAR < 29 Mol/m2 day)\n> 30 Mainly mesotidal 1 — 5 < 30\nMedium 1 — 3 Exposed or sheltered\nFully mixed Days\nSubtypes for phytoplankton\nNEA 1/26a\nOpen oceanic, exposed or sheltered, euhaline, shallow\n> 30 Mesotidal 1 — 5 < 30\nMedium 1 -3 Exposed or sheltered\nFully mixed Days\nNEA 1/26b\nEnclosed seas, exposed or sheltered, euhaline, shallow\n> 30 Mesotidal 1 — 5 < 30\nMedium 1 — 3 Exposed or sheltered\nFully mixed Days\nNEA 1/26c\nEnclosed seas, enclosed or sheltered, partly stratified\n> 30 Microtidal/Mesotidal < 1 — 5 < 30\nMedium 1 — 3 Exposed or sheltered\nPartly stratified Days to weeks\nNEA 1/26d\nScandinavian coast, exposed or sheltered, shallow\n> 30 Microtidal < 1 < 30\nLow < 1 Exposed or moderately exposed\nPartly stratified Days to weeks\nNEA 1/26e\nAreas of upwelling, exposed or sheltered, euhaline, shallow\n> 30 Mesotidal < 1 < 30\nMedium 1 — 3 Exposed or sheltered\nFully mixed Days\nTypes for phytoplankton, macroalgae, seagrasses, saltmarshes, benthic invertebrate fauna\nNEA 5\nHelgoland (German Bight), rocky, exposed and partly stratified\n> 30\nMesotidal\n< 30\nMedium 1 — 3 Exposed\nPartly stratified Days\nNEA 3/4\nPolyhaline, Exposed or moderately exposed (Wadden Sea type)\nPolyhaline 18 — 30 Mesotidal 1 — 5 < 30\nMedium 1 — 3 Exposed or moderately exposed\nFully mixed Days\nNEA 7\nDeep fjordic and sea loch systems\n> 30 Mesotidal 1 -5 > 30\nLow < 1 Sheltered\nFully mixed Days\nNEA 8a\nSkagerrak Inner Arc Type, polyhaline, microtidal, moderately exposed, shallow\nPolyhaline 25 — 30 Microtidal < 1 > 30\nLow < 1 Moderately exposed\nFully mixed Days to weeks\nNEA 8b\nSkagerrak Inner Arc Type, polyhaline, microtidal, moderately sheltered, shallow\nPolyhaline 10 — 30 Microtidal < 1 < 30\nLow < 1 Sheltered to moderately exposed\nPartly stratified Days to weeks\nNEA 9\nFjord with a shallow sill at the mouth with a very deep maximum depth in the central basin with poor deepwater exchange\nPolyhaline 25 — 30 Microtidal < 1 > 30\nLow < 1 Sheltered\nPartly stratified Weeks\nNEA 10\nSkagerrak Outer Arc Type, polyhaline, microtidal, exposed, deep\nPolyhaline 25 — 30 Microtidal < 1 > 30\nLow < 1 Exposed\nPartly stratified Days\nCountries sharing types that have been intercalibrated:\nType NEA1/26 opportunistic blooming macroalgae, seagrasses, saltmarshes, benthic invertebrate fauna: Belgium, France, Germany, Denmark, Ireland, Netherlands, Norway, Portugal, Spain, United Kingdom\nType NEA1/26 A2: intertidal macroalgae: France, Spain, Portugal\nType NEA1/26 B21: intertidal macroalgae: France, Ireland, Norway, United Kingdom\nType NEA1/26a phytoplankton: Spain, France, Ireland, Norway, United Kingdom\nType NEA1/26b phytoplankton: Belgium, France, Netherlands, United Kingdom\nType NEA1/26c phytoplankton: Germany, Denmark\nType NEA1/26d phytoplankton: Denmark\nType NEA1/26e phytoplankton: Portugal, Spain\nType NEA 5: Germany\nType NEA3/4: Germany, Netherlands\nType NEA7: Norway, United Kingdom\nType NEA8a: Norway, Sweden\nType NEA8b: Denmark, Sweden\nType NEA9: Norway, Sweden\nType NEA10: Norway, Sweden",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2018/229/annex/division/1/division/15",
    "retrieved_at": "2026-11-01T15:13:11.570988+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}