HABMAP Acoustic Multibeam Echosounder Survey of Selected Areas of the Southern Irish Sea (Summer 2005)

  • English
  • wel
  • All

The HABMAP project was set up in response to the need for better spatial awareness of habitat distributions in the Southern Irish Sea. It was a partnership project between partners in Wales and Ireland, and part funded by INTERREG IIIa European regional development fund. Data collection included acoustic data, sediment data and seabed imagery. These data were used to classify the seabed and feed into a predictive modelling process to predict benthic habitat. The multibeam data was collected in five locations throughout the Southern Irish Sea by the R/V Celtic Voyager to Irish National Seabed Survey (INSS) standard. They were then processed, cleaned and classified based on acoustic classes, which were then related to seabed sediment types. Bedforms were also identified using the MBES data. The Coordinate System used for the multibeam data was UTM Zone 30N. The xyz data was usually processed to a 5 m resolution. The purpose of this data capture was to obtain multibeam coverage of the five study areas identified to cover a variety of different environments with different physical properties and biological communities. This would be used to link backscatter intensity to physical properties of the seabed. Data depth corrected for tide using POLPRED software which utilises one or more of Proudman Oceanographic Laboratory's hydrodyamic models, and reduced to chart datum. CARIS HIPS / SIPS software used to create surfaces and gridded datasets by experienced surveyors.

Identification

Dynodydd
Identifier
NRW_DS115166
Teitl Amgen
Alternative Title
  • Arolwg ecoseinydd amlbaladr acwstig o ardaloedd penodedig yn ne Mor Iwerddon ar gyfer y prosiect HABMAP, haf 2005
Laith Metadata
Metadata Language
English
Lineage

Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the Research Vessel (RV) Celtic Voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at maximum of 68 degrees to cover approximately 4.7 times water depth. Line spacing planned to give approximately 20 percent overlap.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2001-05-01
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Marine Institute
Marine Institute Headquaters, Rinville, Oranmore, Co. Galway, Ireland
http://www.marine.ie
 

Extent

Extent

Hyd
Geographic Extent
Tremadog Bay
Hyd
Geographic Extent
Cardigan Bay
Hyd
Geographic Extent
Caernarfon Bay
Hyd
Geographic Extent
St. George's Channel
Hyd
Geographic Extent
St. Brides Bay
Hyd
Geographic Extent
Celtic Sea
Hyd
Geographic Extent
Irish Sea
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword
benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Image ()

    Specification

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

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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
Degree
false
Lineage

Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the Research Vessel (RV) Celtic Voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at maximum of 68 degrees to cover approximately 4.7 times water depth. Line spacing planned to give approximately 20 percent overlap.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

NRW Thesaurus
  • HABMAP
  • Subtidal
  • subtidal sediments
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
Math
Type
Theme
Theme

Dyfyniad
Citation

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

Spatial Reference System

Code
Latitude and Longitude (EPSG::4326)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
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

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313135313636 XML
Laith Metadata
Metadata Language
English
Parent Identifier
HABMAP Predictive Habitat Maps of the Irish Sea

NRW_DS101977
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-12-09T12:31:42.397Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
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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