IN2017_T01 Sydney to Broome Transit Bathymetry 10m - 210m Multi-resolution AusSeabed products

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2017_T01 titled "Natural iron fertilisation of oceans around Australia: linking terrestrial dust and bushfires to marine biogeochemistry". The voyage took place between September 24 and October 8, 2017, departing from Sydney (NSW) and arriving in Broome (WA).\n\nThe purpose of this transit voyage was to to move the vessel from Sydney to Broome prior to IN2017_V05.\n\nThis dataset is published with the permission of CSIRO. Not to be used for navigational purposes.\n\nThe dataset contains bathymetry grids of 10m to 210m resolution of the Sydney to Broome Transit produced from the processed EM122 and EM710 bathymetry data.\nLineage: Multibeam data was logged from the EM’s in Kongsberg’s proprietary *.all format and was converted to be processed within Caris HIPS and SIPS version 10.3. Once the raw files were converted into the HIPS and SIPS format the data was analysed for noise. Zerotide was applied for most lines, and the lines were merged using the vessel file appropriate for either the EM122 or EM710. The data was then gridded at the highest resolution possible and further inspected for outliers. For the Macumba wreck area, tides were applied to lines 183-238 using C-tides reduced MSL predicted tides.\n\nThe 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.