Total alkalinity and dissolved inorganic carbon measurements at the RMS Titanic wreck and a seamount ridge in the deep waters of the western North Atlantic in summer 2022 ...

To gain information on the chemical parameters of deep water in the western North Atlantic, water samples were taken using a Niskin bottle deployed at five stations at the RMS Titanic wreck site (stations: 0075, 0079, 0080, 0081, 0082 - deepest samples at station 0081: 41.7335576, -49.9467401, 3,831...

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Bibliographic Details
Main Authors: Roberts, J Murray, Gebruk, Anna, Bai, Yang, Sim, Gavin, McClenaghan, Beverly, Mather, Rod, Cleland, Jason, Ross, Steve W
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
aragonite saturation state
Canada
Deep sea
dissolved inorganic carbon DIC
Newfoundland
Northwest Atlantic
Salinity
total alkalinity TA
Water samples
Event label
Sample ID
DATE/TIME
LATITUDE
LONGITUDE
DEPTH, water
Pressure, water
Temperature, water
Alkalinity, total
Carbon, inorganic, dissolved
pH
Aragonite saturation state
CTD, Valeport, MIDAS SVX2 6000, mounted on submersible
Doppler velocity log DVL, Sonardyne, mounted on submersible
Alkalinity titrator, Apollo SciTech, AS-ALK2
Dissolved inorganic carbon analyser, Apollo SciTech, AS-C3
Calculated using CO2SYS software Lewis and Wallace 1998
OceanGate
Horizon Arctic AHTS
Integrated Assessment of Atlantic Marine Ecosystems in Space and Time iAtlantic
Arctic
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.961187
https://doi.pangaea.de/10.1594/PANGAEA.961187
Description
Summary:To gain information on the chemical parameters of deep water in the western North Atlantic, water samples were taken using a Niskin bottle deployed at five stations at the RMS Titanic wreck site (stations: 0075, 0079, 0080, 0081, 0082 - deepest samples at station 0081: 41.7335576, -49.9467401, 3,831 m water depth) and at one station at a newly-explored seamount ridge (station 0083: 41.5975604, -49.439188, 2,870 m water depth) during the OceanGate expedition aboard AHTS Horizon Arctic, 15 June - 25 July 2022. The ridge is part of Seamount U in Pe-Piper et al. (2007). A total of 20 water subsamples were collected and analysed for total alkalinity (TA) and dissolved inorganic carbon (DIC). TA was analysed using an Apollo SciTech AS-ALK2 alkalinity titrator and DIC was analysed using an Apollo SciTech AS-C3 inorganic carbon analyser. The aragonite saturation state was calculated using the CO2SYS system (Lewis and Wallace, 1998). ... : Corresponding author: Roberts, J Murray ...

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