Data

UWA, Minderoo – Exploring Australia’s deepest Marine Parks – CTD profiles

Australian Ocean Data Network
Kolbusz, Jessica ; Bond, Todd
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://catalogue.aodn.org.au/geonetwork/srv/api/records/89027941-ad54-45b0-b4bc-d26b492cafff&rft.title=UWA, Minderoo – Exploring Australia’s deepest Marine Parks – CTD profiles&rft.identifier=https://catalogue.aodn.org.au/geonetwork/srv/api/records/89027941-ad54-45b0-b4bc-d26b492cafff&rft.description=This dataset contains CTD profiles collected during the Parks Australia project Exploring the Deepest Parts of Australian Marine Parks, led by the Minderoo-UWA Deep-Sea Research Centre (MUDSRC). CTD sensors were mounted on autonomous lander frames and deployed in the Perth Canyon and Gascoyne Marine Parks. The purpose of the overall study is to characterise the environmental conditions, biodiversity, geological features, and benthic habitats of the deepest areas within Australia’s marine parks.Maintenance and Update Frequency: irregularStatement: This data was collected by an Aanderaa Seaguard mounted with a doppler current sensor, temperature sensor, pressure probe, conductivity sensor and oxygen optode. The Seaguard and associated sensors were rated to 6000 m. The Seaguard was mounted on an autonomous lander frame equipped with an acoustic release, clump weight and buoyancy, providing suitable mechanisms for the lander to reach the seafloor and then jettison back to the surface by acoustic command, releasing the clump weight. For each deployment, the lander spent approximately 6 hours on the seafloor. Also mounted on the lander frame was a niskin bottle, which closes via a dissolvable link on the seafloor, collecting a water sample. The water sample was then used to correct the conductivity sensor to the practical salinity. This methodology allows for hydrographic profiles of the oceanographic variables to be collected from the surface to the seafloor. The downcast data was used. The temperature sensor resolution is 0.001°C and the accuracy is ±0.03°C. The pressure sensor has a resolution of &rft.creator=Kolbusz, Jessica &rft.creator=Bond, Todd &rft.date=2025&rft.coverage=westlimit=113.9943; southlimit=-32.4259; eastlimit=115.2686; northlimit=-31.7006&rft.coverage=westlimit=113.9943; southlimit=-32.4259; eastlimit=115.2686; northlimit=-31.7006&rft.coverage=westlimit=109.9755; southlimit=-22.906; eastlimit=113.2299; northlimit=-20.70&rft.coverage=westlimit=109.9755; southlimit=-22.906; eastlimit=113.2299; northlimit=-20.70&rft.coverage=uplimit=5101; downlimit=0&rft.coverage=uplimit=5101; downlimit=0&rft_rights=Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0/&rft_rights=The citation in a list of references is: Kolbusz, J. & Bond, T. (2025), UWA, Minderoo – Exploring Australia’s deepest Marine Parks – CTD profiles. The University of Western Australia (UWA). File identifier and Data accessed at (add http link).&rft_rights=xxx&rft_subject=oceans&rft_subject=Australian Marine Parks&rft_subject=Gascoyne Marine Park&rft_subject=Perth Canyon Marine Park&rft_subject=WATER TEMPERATURE&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=OCEAN TEMPERATURE&rft_subject=SALINITY&rft_subject=SALINITY/DENSITY&rft_subject=OCEAN OVERTURNING&rft_subject=CLIMATE INDICATORS&rft_subject=ATMOSPHERIC/OCEAN INDICATORS&rft_subject=Temperature of the water body&rft_subject=Absolute salinity&rft_subject=Conservative temperature&rft_subject=Depth below sea surface&rft_subject=Aanderaa Temperature Probe&rft_subject=Global / Oceans | Global / Oceans | East Indian Ocean&rft_subject=States, Territories (Australia) | States, Territories (Australia) | Western Australia&rft_subject=research vessel&rft_subject=water temperature sensor&rft_subject=CTD&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International License
https://creativecommons.org/licenses/by/4.0/

The citation in a list of references is: "Kolbusz, J. & Bond, T. (2025), UWA, Minderoo – Exploring Australia’s deepest Marine Parks – CTD profiles. The University of Western Australia (UWA). File identifier and Data accessed at (add http link)."

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Full description

This dataset contains CTD profiles collected during the Parks Australia project Exploring the Deepest Parts of Australian Marine Parks, led by the Minderoo-UWA Deep-Sea Research Centre (MUDSRC). CTD sensors were mounted on autonomous lander frames and deployed in the Perth Canyon and Gascoyne Marine Parks. The purpose of the overall study is to characterise the environmental conditions, biodiversity, geological features, and benthic habitats of the deepest areas within Australia’s marine parks.

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Maintenance and Update Frequency: irregular
Statement: This data was collected by an Aanderaa Seaguard mounted with a doppler current sensor, temperature sensor, pressure probe, conductivity sensor and oxygen optode. The Seaguard and associated sensors were rated to 6000 m. The Seaguard was mounted on an autonomous lander frame equipped with an acoustic release, clump weight and buoyancy, providing suitable mechanisms for the lander to reach the seafloor and then jettison back to the surface by acoustic command, releasing the clump weight. For each deployment, the lander spent approximately 6 hours on the seafloor. Also mounted on the lander frame was a niskin bottle, which closes via a dissolvable link on the seafloor, collecting a water sample. The water sample was then used to correct the conductivity sensor to the practical salinity. This methodology allows for hydrographic profiles of the oceanographic variables to be collected from the surface to the seafloor. The downcast data was used. The temperature sensor resolution is 0.001°C and the accuracy is ±0.03°C. The pressure sensor has a resolution of <0.0001% full-scale-output, and the accuracy is ±0.02% full-scale-output. The conductivity sensor has a resolution of 0.0002 S/m and an accuracy of 0.005 S/m. The salinity measurements were processed by CSIRO NCMI Hydrochemistry at the Indian Ocean Marine Research Centre with a Guildline Salinometer of accuracy 0.002 equivalent practical salinity units. To account for the profiles being over 2000 m, the conservative temperature and absolute salinity are reported alongside the temperature and pressure.

Notes

Credit
This research was conducted in Perth Canyon Marine Park and Gascoyne Marine Park under license number PA2022-00158, issued by the Director of National Parks, Australia.
Credit
Minderoo Foundation

Issued: 08 2025

Data time period: 2023-05-08

This dataset is part of a larger collection

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115.2686,-31.7006 115.2686,-32.4259 113.9943,-32.4259 113.9943,-31.7006 115.2686,-31.7006

114.63145,-32.06325

113.2299,-20.7 113.2299,-22.906 109.9755,-22.906 109.9755,-20.7 113.2299,-20.7

111.6027,-21.803

text: westlimit=113.9943; southlimit=-32.4259; eastlimit=115.2686; northlimit=-31.7006

text: westlimit=109.9755; southlimit=-22.906; eastlimit=113.2299; northlimit=-20.70

text: uplimit=5101; downlimit=0

Subjects
ATMOSPHERIC/OCEAN INDICATORS | Aanderaa Temperature Probe | Absolute salinity | Australian Marine Parks | CLIMATE INDICATORS | CTD | Conservative temperature | Depth below sea surface | EARTH SCIENCE | Gascoyne Marine Park | Global / Oceans | Global / Oceans | East Indian Ocean | OCEAN OVERTURNING | OCEAN TEMPERATURE | OCEANS | Perth Canyon Marine Park | SALINITY | SALINITY/DENSITY | States, Territories (Australia) | States, Territories (Australia) | Western Australia | Temperature of the water body | WATER TEMPERATURE | oceans | research vessel | water temperature sensor |

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Other Information
(Minderoo-UWA Deep-Sea Research Centre webpage)

url : https://www.uwa.edu.au/oceans-institute/partnerships/deep-sea-research-centre

(NetCDF files via THREDDS catalog)

url : https://thredds.aodn.org.au/thredds/catalog/UWA/Deep_Sea_Research_Centre/CTD/catalog.html

Identifiers
  • global : 89027941-ad54-45b0-b4bc-d26b492cafff