Data

IN2016_V01 Heard and Macdonald Islands Bathymetry 10m - 210m Multi-resolution AusSeabed products

Commonwealth Scientific and Industrial Research Organisation
Coffin, Mike ; Frances Cooke ; Martin, Tara ; Boyd, Matt ; Navidad, Cisco
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=info:doi10.25919/jw5f-ad35&rft.title=IN2016_V01 Heard and Macdonald Islands Bathymetry 10m - 210m Multi-resolution AusSeabed products&rft.identifier=10.25919/jw5f-ad35&rft.publisher=Commonwealth Scientific and Industrial Research Organisation (CSIRO)&rft.description=This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2016_V01 titled HEOBI: Heard Earth-Ocean-Biosphere Interactions. The voyage took place between January 8 and February 27, 2016, departing from Fremantle (WA) and arriving in Hobart (TAS). Continuous mapping of the seafloor was carried out using the multibeam systems (EM122, EM710); multi-frequency split beam echosounders, (ME70 and EK60); sub bottom profiler (SPB 120); gravimeter and magnetometer to characterise bathymetry for the identification of geothermal activity on the Heard Island-McDonald Island platform (HIMP) and Kerguelen plateau. Detailed characterisation of the volcano fields involved sampling of hydrothermal fluids for geochemistry purposes, also the use of dredging to retrieve rocks and volcanic glass for further onboard investigation. This dataset is published with the permission of CSIRO. Not to be used for navigational purposes. The dataset contains bathymetry grids of 10m to 210m resolution of the Kerguelen Plateau produced from the processed EM122 and EM710 bathymetry data.Data processing for the EM122 and EM710 data was performed using CARIS 8.1.8. Data from both systems were imported into a single CARIS project using Vessel files Investigator_EM710 and Investigator_EM122. A zero tide was applied to the data before merging. All lines were swath edited and then subedited. The data was then gridded at multiple resolutions in python Caris batch script using a Depth filter Vs Resolution guideline derived from AusSeabed Multibeam guidelines v2 and further inspected for outliers. Final raster products are available in L3 folder of this collection. Final processed data were also exported per line as GSF and ASCII format and available in the L2 folder of this collection.&rft.creator=Coffin, Mike &rft.creator=Frances Cooke &rft.creator=Martin, Tara &rft.creator=Boyd, Matt &rft.creator=Navidad, Cisco &rft.date=2023&rft.edition=v2&rft.coverage=northlimit=-33.9600; southlimit=-53.5000; westlimit=72.9300; eastLimit=115.8200; uplimit=-6762.449219; downlimit=-16.765894; projection=WGS84&rft_rights=All Rights (including copyright) CSIRO 2023.&rft_rights=Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/&rft_subject=AusSeabed&rft_subject=MNF&rft_subject=CSIRO&rft_subject=Marine geoscience&rft_subject=Geology&rft_subject=EARTH SCIENCES&rft_subject=Surveying (incl. hydrographic surveying)&rft_subject=Geomatic engineering&rft_subject=ENGINEERING&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

Creative Commons Attribution
https://creativecommons.org/licenses/by/4.0/

All Rights (including copyright) CSIRO 2023.

Access:

Open view details

Data is accessible online and may be reused in accordance with licence conditions

Brief description

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2016_V01 titled "HEOBI: Heard Earth-Ocean-Biosphere Interactions". The voyage took place between January 8 and February 27, 2016, departing from Fremantle (WA) and arriving in Hobart (TAS).

Continuous mapping of the seafloor was carried out using the multibeam systems (EM122, EM710); multi-frequency split beam echosounders, (ME70 and EK60); sub bottom profiler (SPB 120); gravimeter and magnetometer to characterise bathymetry for the identification of geothermal activity on the Heard Island-McDonald Island platform (HIMP) and Kerguelen plateau. Detailed characterisation of the volcano fields involved sampling of hydrothermal fluids for geochemistry purposes, also the use of dredging to retrieve rocks and volcanic glass for further onboard investigation.

This dataset is published with the permission of CSIRO. Not to be used for navigational purposes.

The dataset contains bathymetry grids of 10m to 210m resolution of the Kerguelen Plateau produced from the processed EM122 and EM710 bathymetry data.

Lineage

Data processing for the EM122 and EM710 data was performed using CARIS 8.1.8. Data from both systems were imported into a single CARIS project using Vessel files Investigator_EM710 and Investigator_EM122. A zero tide was applied to the data before merging. All lines were swath edited and then subedited.

The data was then gridded at multiple resolutions in python Caris batch script using a Depth filter Vs Resolution guideline derived from AusSeabed Multibeam guidelines v2 and further inspected for outliers. Final raster products are available in L3 folder of this collection. Final processed data were also exported per line as GSF and ASCII format and available in the L2 folder of this collection.

Data time period: 2016-02-08 to 2016-02-27

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related Grants and Projects

Related Websites

115.82,-33.96 115.82,-53.5 72.93,-53.5 72.93,-33.96 115.82,-33.96

94.375,-43.73

Subjects
AusSeabed | CSIRO | Earth Sciences | Engineering | Geology | Geomatic Engineering | MNF | Marine Geoscience | Surveying (Incl. Hydrographic Surveying) |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Identifiers
Similar data you may be interested in: