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Research Voyage: SS 01/2008

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    Multibeam echosounder data collected on Southern Surveyor voyage 01/2008 using the Simrad EM300 multibeam echosounder to acquire high resolution seafloor bathymetry and backscatter information. This voyage took place off southern Tasmania during January 2008. Ping rate varied according to depth. Data are stored in Simrad *.all raw format at CMAR and Geoscience Australia (GA). There are 392 files totalling 4.69 GB of raw data in this dataset. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the data processing report (as available).

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    Southern Surveyor Voyage SS 01/2008 data backups and documentation: LTO Data Backups (location): - SS200801 SS-User final backup copy 2 (Hobart Marine Labs, Block 3, Remote Sensing Compactus, Datacenre archive box 2) - SS200801 SWATH backup copy 1 (Hobart Marine Labs, Block1, Data Centre MNF Media Cabinet) - SS200801 SS-User final backup copy 3 (Hobart Marine Labs, Block1, Data Centre MNF Media Cabinet) - SS200801 SS2 Final Backup copy 3 (Hobart Marine Labs, Block1, Data Centre MNF Media Cabinet) - SS200801 SS2 Final Backup copy 2 (given to Hiski Kippo in Hobart March 27, 2008 for transfer to Florieat) Paper Documentation: - Bridge Log (23pp) - CTD Log sheets (30pp) - CTD plots (22pp) - Computing Checklists (10pp) These documents are archived at Hobart Marine Labs, Block1, Data Centre compactus, Southern Surveyor archive box 2008-1, and logged in Trim Context. - Trim References: Container: AB2008/1040 Folder: C2008/6911 - On-line Documentation: - SS200801_Bridge_Log.pdf - SS200801_Computing_Checklist.pdf - SS200801_CTD_Logs.pdf - SS200801_CTD_Plots.pdf - SS200801_Electronics_Report.pdf - SS200801_Plan.pdf - SS200801_UWY_ADCP_Report.pdf - Links in this record will work for PROCESSING STAFF ONLY. Scientific staff may request copies via data-requests-hf@csiro.au. Documentation is on the internal network: \processedVoyageData [voyage] \global_docs. The raw data will be archived by the CSIRO Data Access Portal in 2015.

  • This dataset contains the Underway (UWY) data collected on Southern Surveyor voyage SS 01/2008. The voyage took place in the Southern Ocean, below Tasmania, from 11 January to 1 February 2008. This dataset has been processed and archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset may be contained in the voyage plan and voyage summary (as available). The standard Underway (=continuously recorded) dataset from a research voyage includes Navigation (NAV), Sounder, Thermosalinograph (TSG) and Meteorological (MET) data. NAV data includes GPS (Global Positioning System) measurements of latitude, longitude, ship's direction and speed. MET data includes atmospheric temperature, humidity and pressure, wind speed and direction, and incident radiation intensity. Data are recorded at 10 second intervals.

  • 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