Identification

Title

1995 IFREMER Cartopep Acoustic Survey data - Habitat map

Abstract

Interpretation of Multibeam Bathymetry and Backscatter data from the Cartopep campaign carried out by Ifremer, France (1995). Multibeam bathymetry data processed with the Caraibes software (v3.9) and a 30m grid created.The data was acquired in 1995 when multibeam systems were first emerging onto the commercial market. The number of beams per ping was limited and thus the data density low in comparison to more modern data. Data editting was only done on data that was significantly in error. The multibeam backscatter data was also processed in the Caraibes software package and produced 2 mosaics at 50m resolution. The backscatter data did not have higher resolution data. Correlation with ground truth data, consisting of sediment samples and photographic imagery samples, predominantly toward the top of slope and seamount summit and flanks,allowed basic interpretation of the bathymetry and backscatter data near the sample locations. To aid interpetation, the sediment samples had been divided into FOLK categoriesand habitat type determinations, as well as faunal communities in some instances, had beeen made for the photographic imagery samples.Characterisation was spread over the whole area and divided into polygon regions by finding interpretive boundaries on either backscatter imagery (such as texture changes or contrast changes) or on the bathymetric layers of slope, rugosity and relief. Derived using acoustic data supplied by Ifremer (FR). Additional information source: Sotheran, I., Benson, A. & Crawford-Avis, O., (2014), Mapping habitats and biotopes from acoustic datasets to strengthen the information base of Marine Protected Areas in Scottish waters – Phase 2 (Barra Fan and Hebrides Terrace Seamount Area), JNCC Report 527, ISSN 0963 8901

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/aface91c-7dd7-4a6e-9f63-0af60aa0c789-GB200057.zip

name: GB200057.zip

Unique resource identifier

code

aface91c-7dd7-4a6e-9f63-0af60aa0c789

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Sotheran, I., Benson, A. & Crawford-Avis, O., (2014), Mapping habitats and biotopes from acoustic datasets to strengthen the information base of Marine Protected Areas in Scottish waters – Phase 2 (Barra Fan and Hebrides Terrace Seamount Area), JNCC Report 527, ISSN 0963 8901

Classification of spatial data and services

Topic category

biota

Keywords

Keyword set

keyword value

Marine

Seabed Habitats and Geology

GB200057

Corpulent

MNCR (deep water section)

Geographic location

West bounding longitude

-10.726934

East bounding longitude

-9.070273

North bounding latitude

57.063657

South bounding latitude

56.092737

Temporal reference

Temporal extent

Begin position

2014-01-01

End position

2014-06-01

Dataset reference date

date type

publication

effective date

2014-06-30

Frequency of update

Quality and validity

Lineage

Associated datasets: GB200045-48

Conformity

Data format

name of format

Geospatial (vector polygon)

version of format

Unknown

Constraints related to access and use

Constraint set

Use constraints

Released under the Open Government Licence v3.0. Attribution statement: “Contains public sector data from © JNCC 2014. Derived from acoustic data provided by IFREMER 2014”

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

originator

Metadata on metadata

Metadata point of contact

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

pointOfContact

Metadata date

2018-06-14

Metadata language

eng