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

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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", spublished in Mediterranean Marine Science by Fabri et al. in 2025 https://doi.org/10.12681/mms.40914

Data and resources

lacaze_seafloor_5m_aspect

Aspect

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lacaze_seafloor_5m_CURV

Curvature

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lacaze_seafloor_5m_SLOPE

Slope

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lacaze_seafloor_5m_bathy

Bathymetry

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lacaze_seafloor_5m_S_to_P

Surface area to Planar area

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lacaze_seafloor_5m_BPI03

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

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lacaze_seafloor_5m_BPI09

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

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lacaze_seafloor_5m_BPI11

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

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lacaze_seafloor_5m_BPI25

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

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lacaze_seafloor_5m_BPI25-250

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

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lacaze_seafloor_5m_BPI49

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

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lacaze_seafloor_5m_BPI81

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

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lacaze_seafloor_5m_VRM09

Vector Ruggedness Measure (VRM) computed using 9 pixels

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lacaze_seafloor_5m_VRM25

Vector Ruggedness Measure (VRM) computed using 25 pixels

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lacaze_seafloor_5m_VRM49

Vector Ruggedness Measure (VRM) computed using 49 pixels

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Digital Object Identifier (DOI)

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Additional information

Temporal extent	2021-07-01 – 2021-07-31
Date (creation)	2024-03-18
Date (publication)	2025-03-25
Status	onGoing
Update frequency	asNeeded
Metadata language	fr
License	CC-BY (Creative Commons - Attribution)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show