Pembrokeshire Marine Special Area of Conservation (SAC) Sea Salinity Time Series Data
Within Pembrokeshire Special Area of Conservation (SAC) an integrated monitoring strategy at a site level is employed to produce a view of the status of each feature within the SAC as a whole. The Data is captured as part of the Across-Wales Diving Survey, designed to gather information on Reef features across the Marine SAC's in Wales. In order to ascertain whether observed changes are due to natural factors or anthropogenically created factors, a suite of environmental factors also need to be considered, such as turbidity, temperature, salinity and water chemistry. Salinity loggers have been placed at sites across Pembrokeshire Marine SAC. The data is collected continuously, although this has not been processed to produce daily averages due to the low confidence in the data. Additional salinity recordings are taken at Skomer MNR but these are covered in a separate metadata entry. Salinity is also recorded in saline lagoons within Wales. Metadata about this data is held in a separate entry. Gathering physical data such as temperature provides context and background information for the condition assessment of each of the reef features monitored.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS111152
- Alternative Title
-
- Data Cyfres Amser Halwynedd Mor ACA Sir Benfro Forol
- Salinity loggers in Pembrokeshire Marine SAC
- Metadata Language
- English
- Lineage
-
All the Salinity data is recorded by Starr Oddi Salinity and Temperature loggers. As each logger is deployed a record is kept of which site it has been deployed to and how often the logger has been reused. Loggers are recovered every year but this is dependant on weather conditions and diver availability. All loggers are placed at a fixed location on the seabed. These are marked by bolts, pitons or attached to Monitoring Station Markers. The logger records the Date, Time and Temperature (oC) and salinity (psu) at 1 hour intervals. For each logger, metadata is recorded; including the serial number of the logger and the date and times the logger was deployed and recovered. The salinity loggers are part of a wider network of loggers in Wales that include the Skomer MNR and the Saline lagoons loggers as well as a series of temperature loggers that are deployed across Wales.
- Dataset Reference Date (Publication)
- 2009-09-30
Temporal Extent
- Begin date
- 2007-08-22
- End date
- 2009-09-11
- Topic category
-
- Oceans
Extent
Extent
- Geographic Extent
- Irish Sea
- Geographic Extent
- Swansea Bay
- Geographic Extent
- Cardigan Bay
- Geographic Extent
- St. Brides Bay
- Geographic Extent
- SIR BENFRO - PEMBROKESHIRE
))
Vertical Extent
- Medin Extent Keyword
-
water column
Vertical Extent
- Minimum value (metres)
- -0.9
- Maximum value (metres)
- -25
- Vertical CRS
Distribution
- Format Type and Description
-
-
Documents
Documents
()
- Specification
-
Raw data is held as Excel spreadsheets. Metadata about the loggers are store din an excel spreadsheet.
-
Documents
Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
All the Salinity data is recorded by Starr Oddi Salinity and Temperature loggers. As each logger is deployed a record is kept of which site it has been deployed to and how often the logger has been reused. Loggers are recovered every year but this is dependant on weather conditions and diver availability. All loggers are placed at a fixed location on the seabed. These are marked by bolts, pitons or attached to Monitoring Station Markers. The logger records the Date, Time and Temperature (oC) and salinity (psu) at 1 hour intervals. For each logger, metadata is recorded; including the serial number of the logger and the date and times the logger was deployed and recovered. The salinity loggers are part of a wider network of loggers in Wales that include the Skomer MNR and the Saline lagoons loggers as well as a series of temperature loggers that are deployed across Wales.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
-
- marine monitoring (see also marine surveys)
- salinity
- salinity logger
- starr oddi
- Pembrokeshire Marine SAC
- Chapel Reef
- Beggars Reach
- Thorn Island
- Warrior
- Dockyard Bank
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
-
- Salinity of the water column
- Raw temperature and/or salinity instrument output
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW 2009 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313131313532 XML
- Metadata Language
- English
- Parent Identifier
-
Across Wales Diving Monitoring Project (2004)
NRW_DS109743
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:23:39.842Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0