Bathymetry and seafloor variables at 5-m resolution in the Lacaze-Duthiers Canyon, below130 m depth

Seafloor variables were derived from the digital terrain models (DTMs) at a 5-m resolution for the entire canyon. The Lacaze-Duthiers Canyon was first delineated, and only data below 130 m depth were retained.

The dataset is composed of 15 variables : Bathymetry; Slope; Aspect; Curvature; Surface area to Planar area; Vector Ruggedness Measure (VRM) computed using 9, 25 and 49 pixels; and Bathymetric Position Index (BPI) calculated using windows of 3, 9, 11, 25, 49, 81, and 250 pixels.

This dataset was produced to assess the probable distribution of habitats (habitat suitability modeling) for cold-water corals in the Lacaze-Duthiers Canyon at different resolutions as part of the European H2020 project REDRESS (Restoration of Deep-Sea Habitats to Rebuild European Seas,  https://redress-project.eu/ , Grant Agreement No. 101135492).

This dataset is related to the article "Mapping and Conservation of Cold-Water Corals in the Lacaze-Duthiers Canyon for Transboundary Management", submitted to Mediterranean Marine Science by Fabri et al. in 2025.

 
Citation proposal
Fabri Marie-Claire (IFREMER) - Dreidemy Jeanne (IFREMER) (2025) . Bathymetry and seafloor variables at 5-m resolution in the Lacaze-Duthiers Canyon, below130 m depth. IFREMER https://services.mspdata.eu:/geonetwork/srv/api/records/1cc30b12-ad4e-415f-8f1f-ad690e0c266c

Simple

Date ( Creation )
2024-03-18
Date ( Publication )
2025-03-25
Identifier

LD_Seafloor_variables_5m_under130m

Credit

Ifremer

  Author

  Author

  Publisher

Thèmes Sextant ( Theme )

  • /Milieu physique/Bathymétrie

GEMET - INSPIRE themes, version 1.0 ( Theme )

  • Caractéristiques géographiques océanographiques

Access constraints
Copyright
Use constraints
Copyright
Other constraints

Cite the CALADU_2021 cruise ( https://doi.org/10.17600/1800157 5)

Association Type
Source
Initiative Type
Campaign
Association Type
Cross reference
Association Type
Cross reference
Association Type
Cross reference
Association Type
Cross reference
Spatial representation type
grid Grid
Distance
10  meter
Metadata language
English
Character set
utf8 UTF8
Topic category
  • Oceans
  • Environment
N
S
E
W


Number of dimensions
0
Cell geometry
Area
Transformation parameter availability
false
Distribution format
  • ()

Protocol

COPYFILE

Name

Bathymetry_seafloor_variables_5m

Description

Bathymetry and seafloor variables at 5-m resolution

Function
Download
OnLine resource
lacaze_seafloor_5m_aspect  

Aspect

OnLine resource
lacaze_seafloor_5m_CURV  

Curvature

OnLine resource
lacaze_seafloor_5m_SLOPE  

Slope

OnLine resource
lacaze_seafloor_5m_bathy  

Bathymetry

OnLine resource
lacaze_seafloor_5m_S_to_P  

Surface area to Planar area

OnLine resource
lacaze_seafloor_5m_BPI03  

Bathymetric Position Index (BPI) calculated using windows of 3 pixels

OnLine resource
lacaze_seafloor_5m_BPI09  

Bathymetric Position Index (BPI) calculated using windows of 9 pixels

OnLine resource
lacaze_seafloor_5m_BPI11  

Bathymetric Position Index (BPI) calculated using windows of 11 pixels

OnLine resource
lacaze_seafloor_5m_BPI25  

Bathymetric Position Index (BPI) calculated using windows of 25 pixels

OnLine resource
lacaze_seafloor_5m_BPI25-250  

Bathymetric Position Index (BPI) calculated using windows of 25 and 250 pixels

OnLine resource
lacaze_seafloor_5m_BPI49  

Bathymetric Position Index (BPI) calculated using windows of 49 pixels

OnLine resource
lacaze_seafloor_5m_BPI81  

Bathymetric Position Index (BPI) calculated using windows of 81 pixels

OnLine resource
lacaze_seafloor_5m_VRM09  

Vector Ruggedness Measure (VRM) computed using 9 pixels

OnLine resource
lacaze_seafloor_5m_VRM25  

Vector Ruggedness Measure (VRM) computed using 25 pixels

OnLine resource
lacaze_seafloor_5m_VRM49  

Vector Ruggedness Measure (VRM) computed using 49 pixels

OnLine resource
Digital Object Identifier (DOI)  
Hierarchy level
Dataset

Domain consistency

Conformance result

Date ( Publication )
2010-12-08
Explanation

See the referenced specification

Statement

Seafloor indices were derived from a DTM collected during CALADU_2021 cruise using Benthic Terrain Modeler extension in ArcMap 10.7 (ESRI).

https://coast.noaa.gov/digitalcoast/tools/btm.html

Source

Metadata

File identifier
1cc30b12-ad4e-415f-8f1f-ad690e0c266c   XML
Metadata language
French
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2025-05-16T14:37:18.375055Z
Metadata standard name

ISO 19115-3 - SEXTANT

Metadata standard version

1.0

  Author

 
 

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