PANGAEA_957266
Analysis-ready optical underwater images collected along OFOS profile SO268/2_117-1 during SONNE cruise SO268/2, Clarion-Clipperton Zone (Pacific Ocean)
Mbani, Benson; Greinert, Jens
Analysis-ready optical underwater images collected along OFOS profile SO268/2_117-1 during SONNE cruise SO268/2, Clarion-Clipperton Zone (Pacific Ocean)
2023-04-05
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.957266
Investigator
Benson
Mbani
bmbani@geomar.de
Earth Science
Image number/name
DATE/TIME
LATITUDE
LONGITUDE
Depth, bathymetric
Area/locality
Classification
Score
Scale
Image
Image (File Size)
geoscientificInformation
Clarion Clipperton Fracture Zone
Ocean Floor Observation System
OFOS
OFOS-06
optical camera
Seafloor images
SO268/2
SO268/2_117-1
Underwater images
Sonne_2
2019-04-10
2019-04-10
Complete
11.8573219
11.8734253
-117.0507359
-116.984906
JPIO-MiningImpact
JPI Oceans - Ecological Aspects of Deep-Sea Mining
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
20692 data points
text/tab-separated-values
Purser, Autun; Bodur, Yasemin V; Ramalo, Sofia; Stratmann, Tanja; Schoening, Timm (2021): Seafloor images of undisturbed and disturbed polymetallic nodule province seafloor collected along OFOS profile SO268/2_117-1 RV SONNE SO268/2 cruise [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.935895
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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.957266"!
http://en.wikipedia.org/wiki/ISO_6709
LATITUDE
http://en.wikipedia.org/wiki/ISO_6709
LONGITUDE
http://en.wikipedia.org/wiki/ISO_8601
DATE/TIME
https://doi.org/10.3289/GEOMAR_REP_NS_59_20
SO268/2
https://doi.pangaea.de/10.1594/PANGAEA.935895
Seafloor images of undisturbed and disturbed polymetallic nodule province seafloor collected along OFOS profile SO268/2_117-1 RV SONNE SO268/2 cruise
https://miningimpact.geomar.de
JPIO-MiningImpact
https://uol.de/icbm/forschungsplattformen-schiffe/sonne
Sonne_2
PANGAEA_957274
DIF
9.4
2023-04-05
2026-03-05