Terrain Point Cloud data of a Deep-Sea Cliff offshore Greenland and the Associated Epibenthic Fauna

doi:doi:10.1594/PANGAEA.942834

Terrain Point Cloud data of a Deep-Sea Cliff offshore Greenland and the Associated Epibenthic Fauna

Terrain data retrieved with a forward-looking sonar (Reson7125) the ROV Isis (NOC, UK) used to map a deep-sea wall located offshore the West coast of Greenland (Labrador Sea, [63°51.9'N, 53°16.9'W, depth: 703 to 803 m]) with a high resolution. The file contains a 3D point cloud storing terrain variables derived from the bathymetry [m] and backscatter [nominal unit] extracted at a resolution of 0.3 m. Different terrain descriptors were computed: Slope, Bathymetric Position Index (BPI), Terrain Ruggedness Index, Roughness, Mean and Gaussian curvatures and orientations (Northness and Eastness), at scales of 0.9, 3 and 9 m. Using a Principal Component Analysis (PCA), the terrain descriptors enabled to retrieve 4 terrain clusters and their associated confusion index, to investigate the spatial heterogeneity of the terrain.

BibTex:

@dataset{Van_Audenhaege_Loïc_and_Broad_Emmeline_and_Hendry_Katharine_R_and_Huvenne_Veerle_A_I_2021,
    abstract = {Terrain data retrieved with a forward-looking sonar (Reson7125) the ROV Isis (NOC, UK) used to map a deep-sea wall located offshore the West coast of Greenland (Labrador Sea, [63°51.9'N, 53°16.9'W, depth: 703 to 803 m]) with a high resolution. The file contains a 3D point cloud storing terrain variables derived from the bathymetry [m] and backscatter [nominal unit] extracted at a resolution of 0.3 m. Different terrain descriptors were computed: Slope, Bathymetric Position Index (BPI), Terrain Ruggedness Index, Roughness, Mean and Gaussian curvatures and orientations (Northness and Eastness), at scales of 0.9, 3 and 9 m. Using a Principal Component Analysis (PCA), the terrain descriptors enabled to retrieve 4 terrain clusters and their associated confusion index, to investigate the spatial heterogeneity of the terrain.},
    author = {Van Audenhaege, Loïc and Broad, Emmeline and Hendry, Katharine R and Huvenne, Veerle A I},
    doi = {10.1594/PANGAEA.942834},
    institution = {PANGAEA (Ecology)},
    keyword = {'DY081', 'Greenland glacial trough', 'High', 'Labrador Sea', 'Multibeam Echosounder', 'ROV', 'Vertical mapping', 'acoustic data', 'deep', 'down habitat mapping', 'feeding community', 'fine', 'marine habitat mapping', 'resolution terrain', 'scale spatial patterns', 'suspension', 'terrain point cloud', 'top', 'underwater exploration', 'unsupervised terrain clustering', 'water vertical cliff'},
    title = {Terrain Point Cloud data of a Deep-Sea Cliff offshore Greenland and the Associated Epibenthic Fauna},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-942834},
    year = {2021}
}