ROV exploration of deep-water coral habitats of southwest Australian submarine canyons – water column chemistry data, 2020

• Other Authors: AODN Data Manager (pointOfContact), Alex Wyatt (pointOfContact), Australian Ocean Data Network (AODN) (hasAssociationWith), Bowdler, Sandra (pointOfContact), Charitha Pattiaratchi (pointOfContact), Coupland, Grey (pointOfContact), Data Officer (pointOfContact), Diana Walker (pointOfContact), Fowles, Brooke (pointOfContact), Gardner, S.M. (pointOfContact), Greg Ivey (pointOfContact), Johnson, Mike (pointOfContact), Kuchling, Gerald (pointOfContact), Michael Burton (pointOfContact), Mike Johnson (pointOfContact), Oceans Graduate School (OGS), The University of Western Australia (UWA) (hasAssociationWith), Parker, Justin (pointOfContact), Pattiaratchi, Charitha (pointOfContact), Pattiaratchi, Charitha, Dr (pointOfContact), Schmidt Ocean Institute (hasAssociationWith), Schmidt Ocean Institute (SOI) (resourceProvider), Storey, Andrew (pointOfContact), The University of Western Australia (UWA) (pointOfContact), Trotter, Julie A. (hasPrincipalInvestigator), UWA Manager (pointOfContact), UWA Oceans Institute (OI), The University of Western Australia (UWA) (hasAssociationWith), Underwood, Jim (pointOfContact), Usher, Kayley (pointOfContact), Waite, Anya (pointOfContact), Walker, Diana (pointOfContact)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; sea water pH; Aragonite Saturation State; Calcite Saturation State; Sea Water Neutral Density; SALINITY/DENSITY; EARTH SCIENCE; COASTAL PROCESSES; MARINE ENVIRONMENT MONITORING; FLUORESCENCE; OCEAN OPTICS; ALKALINITY; OCEAN CHEMISTRY; INORGANIC CARBON; WATER TEMPERATURE; OCEAN TEMPERATURE; OXYGEN; Falkor; Temperature of the water body; Practical salinity of the water body; Pressure (measured variable) in the water body exerted by overlying sea water only; Concentration of oxygen {O2} per unit volume of the water body; Fluorescence of the water body; Concentration of carbon (total inorganic) per unit mass of the water body; pH (total scale) of the water body; Saturation state of aragonite in the water body; Saturation state of calcite in the water body; CTD Rosette; Sea-Bird SBE 43 Dissolved Oxygen sensor; WETLabs ECO-FLNTU combined fluorometer and turbidity sensor; Southern Ocean
• Online Access: https://researchdata.edu.au/rov-exploration-deep-data-2020/1734240

Statement: Using CTD and Niskin samplers, seawater parameters (temperature, salinity, O2, nutrients, and carbonate system) were collected to define the physico–chemical dynamics controlling the regional ecology, food sources, skeletal growth rates, and to provide essential calibrations for our geochemical proxy records. On-board measurements of carbonate parameters (alkalinity, DIC, pH etc) were analyzed onboard Falkor, utilising existing mobile instrumentation (spectrophotometry, DIC analyser) proivded by UWA. Credit Schmidt Ocean Institute Credit Australian Research Council awards (FT160100259, DP21012896) Credit University of Western Australia (UWA) Fellowship Support Grant Cruise FK200126 was the first ROV exploration of the Bremer canyon systems, Mount Gabi seamount, and nearby continental margins located in the all-important yet poorly studied Southern Ocean offshore SW Australia, and revisited the Perth Canyon in the SE Indian Ocean which represents only the second ROV exploration of that area. The cruise focused on the collection of deep-water corals for post-cruise geochemical studies to reconstruct long-term environmental changes in this region, together with comprehensive characterisation of their present-day environments including physical and chemical oceanography, canyon geomorphology and geology, bathymetric mapping, faunal descriptions, and the first high resolution video imaging of these previously unexplored deep-water habitats. The NetCDF file contains CTD data and seawater carbonate parameters measured from seawater samples collected on board the SOI Falkor between 2020-01-26T09:18:56 and 2020-02-20T21:32:29, by 12-L Niskin bottles. Temperature and Salinity were measured using a SBE-911plus CTD, Dissolved Oxygen using a SBE-43 DO sensor and Fluorescence by a Wet Labs ECO-FLNTU; Total Alkalinity was measured using a Mettler-Toledo T50 with Rondolino autosampler; DIC was measured using an Apollo SciTech Dissolved Inorganic Carbon analyser; pH, aragonite and calcite saturation states ...