JNCC Acoustic Multibeam Echosounder Survey of Selected Sites off the North Coast of Anglesey as part of the Mapping European Seabed Habitats (MESH) Project (3rd Party Data)

During the summer of 2005, JNCC collaborated with partners of the HABMAP project to survey areas of potential Annex 1 habitat (primarily reef) in the Irish Sea. This was to support nature conservation initiatives beyond 12 nm North of Anglesey. This multibeam echosounder survey was carried out alongside single-beam data collection, seabed sampling and towed video imaging. Four areas of seabed covering approximately 140 sq km were surveyed and following data analysis, the area of study was broadly characterised by a complex topography and mixed sediment mosaics. The purpose of this data capture was to obtain MBES coverage of the study areas for further interpretation and analysis in conjunction with other data gathered in the area, for the purpose of identifying Annex 1 subtidal habitats. Confidence in data is high. Data depth corrected for tide using POLPRED software which utilises one or more of Proudman Oceanographic Laboratory's hydrodyamic models. CARIS HIPS / SIPS software used to create surfaces and gridded datasets by experienced surveyors.

Identification

Identifier
EXT_DS114969
Alternative Title
  • Arolwg ecoseinydd amlbaladr acwstig o safleoedd penodol oddi ar arfordir gogledd Ynys Mon fel rhan o'r prosiect Mapio Cynefinoedd Gwelyau Mor Ewrop (MESH)
Metadata Language
English
Lineage

Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the R/V Celtic voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at max of 68n degrees to cover approximately 4.7 times water depth. Line spacing approximately 200 m giving 15-20% overlap. Three sound velocity drops made during cruise to calibrate to water conditions. Dataset collected as part of a collaborative cruise with JNCC and the Irish Marine Institute, data for the HABMAP project collected during the same cruise.
Dataset Reference Date (Publication)
2012-07-09
Owner
  Joint Nature Conservancy Committee (JNCC) -
Joint Nature Conservancy Committee (JNCC), Monkstone House, City Road, Peterborough, PE1 1JY
http://www.jncc.gov.uk
Originator
  University College Cork -
University of Cork, School of Biological, earth and Environmental Sciences, North Mall Campus, Distillery Fields, Cork, Co. Cork, Ireland
http://www.ucc.ie/en/
 

Extent

Extent

Geographic Extent
SIR YNYS MON - ISLE OF ANGLESEY
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

benthic boundary layer

Vertical Extent

Minimum value (metres)
-30
Maximum value (metres)
-115
Vertical CRS
 
 

Distribution

Distribution

Format Type and Description
  • Documents ()

    Specification

    [A] xyz data in .txt and .TAB format [B] CARIS HIPS raw data format [C] GeoTiff images

Resource Locator
View Metadata

World Wide Web page

 

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

Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the R/V Celtic voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at max of 68n degrees to cover approximately 4.7 times water depth. Line spacing approximately 200 m giving 15-20% overlap. Three sound velocity drops made during cruise to calibrate to water conditions. Dataset collected as part of a collaborative cruise with JNCC and the Irish Marine Institute, data for the HABMAP project collected during the same cruise.
 

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
  • multibeam
  • Habitats and Species Directive
  • sediments
  • reef
  • HABMAP
  • MESH
  • 3rd Party Data
  • Third Party Data
Type
Theme

Citation

Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
Type
Theme

Citation

Date (Revision)
2021-01-06
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Broad-scale biotope mapping of potential reefs in the Irish sea (north-west of Anglesey)
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This dataset is wholly owned by Joint Nature Conservancy Committee. NRW may provide access to this dataset on request in some circumstances. However, enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© JNCC 2008. NRW does NOT grant permission to third parties to re-use or disseminate this dataset. Those seeking such permission should approach the originator directly.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313134393639 XML
Metadata Language
English
Parent Identifier
Multibeam Acoustic Data Index

NRW_DS121633
Resource type
Dataset
Metadata Date
2026-03-03T15:41:16.05Z
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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