General Information
 | |
| Layer Info | |
|---|---|
| Category | Management |
| Sub-category | Environmental conditions |
Description
On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/l, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na+) and chloride (Cl−) ions) (wikipedia, 2022).
Salinity influences the water's freezing point which decreases as salt concentration increases. The density of water also varies according to it's salinity. So this parameters influences stratification and species distribution.
MSP Challenge
In the MSP Challenge, the salinity data layer is static and does not influence any of the models.
North Sea
Not applicable.
This layer is not available in the North Sea Edition.
Baltic Sea
Types
- < 5 PSU
- 5 - 7.5 PSU
- 7.5 - 11 PSU
- 11 - 18 PSU
- > 18 PSU
Metadata
Data Source
BALANCE project, retrieved from HELCOM, acessed on 2018-06-11
Original Title
Modelled bottom salinity (BALANCE)
Description
"This dataset was produced by NERI, Denmark, for the BSR INTERREG IIIB project BALANCE. Due to the stratification in the Baltic Sea it was decided to use bottom salinity for the development of the benthic marine landscapes and difference in surface to bottom salinity for the pelagic landscapes. The following 6 categories of annual mean salinity were applied delineating the Kattegat and the Baltic Sea into regions with differences in salinity regime (fig. 15): I. Oligohaline I (< 5psu). II. Oligohaline II (5 - 7.5psu). III. Mesohaline I (7.5 - 11psu). IV. Mesohaline II (11 - 18psu). V. Polyhaline (18 - 30psu). VI. Euhaline (>30psu)."
Information retrieved from HELCOM's metadata page for this resource (2021-07-20).
Creation Date
Not available. Publication date: 2008-01-01
Methodology
Integrated directly in the platform.
Clyde Marine Region
Not applicable.
This layer is not available in the Clyde Marine Region Edition.
Adriatic Sea
Not applicable.
This layer is not available in the Adriatic Sea Edition.
Co-funded by the European Union.