Video footage of the benthos and accompanying oceanographic CTD data recorded along a transect at station 38-11 of RV Meteor cruise M179/2 in the Bahia Oglander (Tierra del Fuego, Chile)

A custom-built observation frame (ROVOS) based on Ocean Module V8Sii ROV (Remotely Operated Vehicle) technology was launched from RV Meteor and towed along a 133 m transect in the Ogleander Bay, in a depth of 32 m. The shallow seabed is partly covered by algae and inhabited by crustaceans including...

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Bibliographic Details
Main Authors: Owsianowski, Nils, Laudien, Jürgen, Richter, Claudio
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
AWI_BPP
Bentho-Pelagic Processes @ AWI
Benthos
CTD data
FjordFlux
M179/2
M179/2_38-11
Meteor (1986)
Remote operated vehicle
ROV
seafloor
South Atlantic Ocean
Text file
Text file (File Size)
Tierra del Fuego
Video
Video (File Size)
video footage
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.946681
https://doi.org/10.1594/PANGAEA.946681
Description
Summary:A custom-built observation frame (ROVOS) based on Ocean Module V8Sii ROV (Remotely Operated Vehicle) technology was launched from RV Meteor and towed along a 133 m transect in the Ogleander Bay, in a depth of 32 m. The shallow seabed is partly covered by algae and inhabited by crustaceans including a huge colony of squat lobster. The instrument was equipped with three cameras with different perspectives: one HD camera (Kongsberg oe14-502, 720p50) pointed isometrically forward at an angle of 22.5° to the horizon, the second 4k camera (SubC Imaging Mk6, 2160p25) was oriented downward and an observation camera (Bowtech L3C-650-L, 240p24) provided a low-resolution view forward. Environmental data was recorded with a CTD (RBR Maestro), which included sensors for chlorophyll a, turbidity, oxygen, pH and PAR in addition to standard instruments for conductivity, temperature and pressure. Additional CTD data are available from water profiles (Schwalfenberg, in preparation). The position of the ROVOS was recorded with the ship's own Posidonia USBL. The global orientation with respect to magnetic north was determined with an internal IMU device. To determine the true image scale on the high-resolution footage, a series of reference lasers indicating 10 cm were used in addition to an altimeter (Tritech) providing acoustically measured heights from the SubC camera to the seabed (see metadata).

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