Full description
This record provides the bathymetry and morphometric descriptors of the Tasmanian Seamount Cluster (TSC) developed by Berry et al. (2025).Bathymetry was compiled from CSIRO RV Investigator and Southern Surveyor voyages utlising Kongsberg em710 and em122 multibeam echosounder systems. This was supplemented with data acquired aboard RV L’Atlante utilising a Kongsberg EM12D, during the 1994 Tasmante voyage. This supplementary bathymetry data was acquired and processed by Geoscience Australia, and resampled to allow integration with the more recent, higher resolution gridded data. Bathymetry is gridded at 30 m resolution. Morphometric descriptors were developed following the methods of Grosse (2009) to define a boundary definition layer (BDL). This layer defined 188 volcanic TSC edifices. ArcGIS Pro was then utilised to calculate associated metrics including height, volume, basal area, centroid latitude, centroid longitude, ellipticity index and irregularity index. The edifice outlines, and associated metrics, are all contained in the provided shapefile (TSC_Morphometric Parameters_2025.shp). The edifices were also grouped through unsupervised k-means clustering. The cluster number are also contained in the associated shapefile. A shapefile describing the extents of summit ridges is also provided (TSC_Summit Ridges_2025).
In summary, This record contains:
• TSC 30m Bathymetry grid
• TSC morphometric parameters shapefile
• TSC summit ridge shapefile
Lineage
Maintenance and Update Frequency: asNeededNotes
CreditC. Berry, J. Fox, V. Lucieer, J. Whittaker, Marine National Facility, CSIRO
Credit
The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: \"We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research. \"Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.
The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: \"We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research. \"Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.
text: westlimit=146.85; southlimit=-44.533333; eastlimit=147.783333; northlimit=-44.083333; projection=WGS 84 (EPSG:4326)
Subjects
Density of the water body |
Earth Science | Oceans | Ocean Acoustics |
Gear Trials: IN2015_E02 |
Gear Trials: IN2017_E02 |
Gear Trials: IN2021_E03 |
Multibeam Echosounder - EM122 |
Multibeam Echosounder - EM710 |
Research Charter: IN2015_C01 |
Research Transit: SS2011_T04 |
Research Voyage: IN2015_V01 |
Research Voyage: IN2016_V02 |
Research Voyage: IN2017_V02 |
Research Voyage: IN2018_V06 |
Research Voyage: IN2019_V01 |
Research Voyage: IN2019_V02 |
Research Voyage: IN2020_V08 |
Research Voyage: IN2020_V09 |
Research Voyage: IN2020_V10 |
Research Voyage: SS 01/2008 |
Research Voyage: SS 02/2007 |
Research Voyage: SS 03/2006 |
Research Voyage: SS 11/2006 |
Research Voyage: SS2013_V03 |
Sea-floor depth below surface of the water body |
Sea-floor surface hardness |
Vessel Data: Multibeam Echosounder |
multi-beam echosounders |
oceans |
research vessel |
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Other Information
Access the data at the CSIRO Data Access Portal (Data Access portal (data access and DOI))
url :
https://data.csiro.au
Identifiers
- global : 3f69170a-f0ad-4294-a7ff-36524231996c
