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

Identifier
NRW_DS111152
Alternative Title
  • 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
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  CCW Marine Monitoring Team -
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

Geographic Extent
Irish Sea
Geographic Extent
Swansea Bay
Geographic Extent
Cardigan Bay
Geographic Extent
St. Brides Bay
Geographic Extent
SIR BENFRO - PEMBROKESHIRE
N
W
E
S
Map representing the geographic extent of the dataset


 

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 ( )

    Specification

    Raw data is held as Excel spreadsheets. Metadata about the loggers are store din an excel spreadsheet.

 

Quality

Data quality

Quality Scope
Dataset
Conformity
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
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

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus
  • salinity logger
  • Dockyard Bank
  • Warrior
  • starr oddi
  • salinity
  • Thorn Island
  • Pembrokeshire Marine SAC
  • Beggars Reach
  • Chapel Reef
  • marine monitoring (see also marine surveys)
Type
Theme

Citation

Date (Publication)
2025-01-08
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
Type
Theme

Citation

Date (Publication)
2024-06-19
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

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.
 

Attribution Statement

Other constraints

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
 

Licence

Other constraints
Open Government Licence
 
 
 

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
2026-03-03T17:27:51.907Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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