Division Water category Coastal waters Geographical Intercalibration Group Baltic Sea

United Kingdom

Description of types that have been intercalibrated

Type	Surface salinity (psu)	Bottom salinity(psu)	Exposure	Ice days	Other Characteristics
BC1	0,5 — 6 Oligohaline	1 — 6	Exposed	90 — 150	Sites in the Quark and the Bothnian Sea, extending to the Archipelago Sea (for phytoplankton the latter is excluded and integrated in type BC9). Influence of humic substances
BC2	6 — 22 Mesohaline	2 — 6	Very Sheltered		Lagoons
BC3	3 — 6 Oligohaline	3 — 6	Sheltered	90 — 150	Finnish and Estonian coasts of Gulf of Finland
BC4	5 — 8 Lower mesohaline	5 — 8	Sheltered	< 90	Sites of Estonia and Latvia in the Gulf of Riga
BC5	6 — 8 Lower mesohaline	6 — 12	Exposed	< 90	Sites in the southeastern Baltic Sea along the coast of Latvia, Lithuania and Poland
BC6	8 — 12 Mid mesohaline	8 — 12	Sheltered	< 90	Sites along the Western Baltic Sea at the southern Swedish coast and the southeastern Danish coast
BC7	6 — 8 Mid mesohaline	8 — 11	Exposed	< 90	Western Polish coast and eastern German coast
BC8	13 — 18 Upper mesohaline	18 — 23	Sheltered	< 90	Danish and German coasts in the Western Baltic Sea
BC9	3 — 6 Lower mesohaline	3 — 6	Moderately exposed to exposed	90 — 150	Sites in the western Gulf of Finland, Archipelago Sea and Asko archipelago (only for phytoplankton)

Countries sharing types that have been intercalibrated:

Type BC1:

Finland Sweden

Type BC2:

Germany

Type BC3:

Estonia, Finland

Type BC4:

Estonia, Latvia

Type BC5:

Latvia, Lithuania

Type BC6:

Sweden, Denmark

Type BC7:

Germany, Poland

Type BC8:

Germany, Denmark

Type BC9:

Finland, Sweden, Estonia (type only relevant for phytoplankton)