de.pangaea.dataset957266 und de.pangaea.dataset957274 dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-03-05T08:48:21Z https://doi.pangaea.de/10.1594/PANGAEA.957266 <gco:CharacterString>Analysis-ready optical underwater images collected along OFOS profile SO268/2_117-1 during SONNE cruise SO268/2, Clarion-Clipperton Zone (Pacific Ocean)</gco:CharacterString> 2023-04-05T11:04:42 publication https://doi.org/10.1594/PANGAEA.957266 Mbani, Benson
bmbani@geomar.de
https://orcid.org/0000-0002-2348-6782 information author Greinert, Jens
jgreinert@geomar.de
https://orcid.org/0000-0001-6186-8573 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital This dataset comprises a sequence of analysis-ready seafloor optical images of the Clarion-Clipperton Zone (CCZ) in the Pacific Ocean. These images have been pre-processed and are directly usable by the marine imaging community. The raw images were acquired along 12 OFOS (camera) deployment tracks, during SONNE expeditions SO268/1 and SO268/2 to the Mn-nodule covered deep seabed areas of the CCZ in the Pacific Ocean; the raw images have been published here https://doi.org/10.1594/PANGAEA.935856. We subjected these raw images through a series of transformations aimed at correcting for the degradation in visual quality that is typical of underwater images of the deep sea. In particular, the transformations we applied to the raw images include: correction for illumination drop-off radially from the image center towards the edges; contrast enhancements though contrast limited adaptive histogram equalization; color normalization to correct for uneven scene brightness among individual images; and finally, standardization of the varying spatial footprint size due to the inability of the imaging platform (OFOS) to maintain a consistent altitude above the seafloor. Therefore, the provided images are ready to be used in seafloor substrate classification studies. completed Mbani, Benson
bmbani@geomar.de
https://orcid.org/0000-0002-2348-6782 information principalInvestigator Clarion Clipperton Fracture Zone OFOS optical camera Seafloor images Underwater images theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact JPIO-MiningImpact JPI Oceans - Ecological Aspects of Deep-Sea Mining theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -117.0507359 -116.984906 11.8573219 11.8734253 2019-04-10T05:02:52 2019-04-10T13:33:17 Image number/name thematicClassification DATE/TIME thematicClassification LATITUDE thematicClassification LONGITUDE thematicClassification Depth, bathymetric physicalMeasurement m m Area/locality thematicClassification license area Classification thematicClassification seafloor Score thematicClassification classification Scale physicalMeasurement [centimeters per pixel] arbitrary units arbitrary units Image thematicClassification Image (File Size) physicalMeasurement Bytes Bytes text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.957266?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: SO268/2_117-1 (OFOS-06) * LATITUDE: 11.857350 * LONGITUDE: -117.050717 * DATE/TIME: 2019-04-10T04:58:36 * ELEVATION: -4122.2 m * LOCATION: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * CAMPAIGN: SO268/2 * BASIS: Sonne_2 * METHOD/DEVICE: Ocean Floor Observation System GER Dredge; Position USBL; Start Transect 2019-04-10T04:58:36 Source <gco:CharacterString>Seafloor images of undisturbed and disturbed polymetallic nodule province seafloor collected along OFOS profile SO268/2_117-1 RV SONNE SO268/2 cruise</gco:CharacterString> 2021-01-01 publication https://doi.org/10.1594/PANGAEA.935895 Purser, Autun
autun.purser@awi.de
https://orcid.org/0000-0001-5427-0151 information author Bodur, Yasemin V
yasemin.bodur@uit.no
https://orcid.org/0000-0001-8758-8617 information author Ramalo, Sofia
sofia.pinto.ramalho@gmail.com
author Stratmann, Tanja
tanja.stratmann@nioz.nl
https://orcid.org/0000-0001-7997-1157 information author Schoening, Timm
tschoening@geomar.de
https://orcid.org/0000-0002-0035-3282 information author documentDigital