IN2016_V05 Great Barrier Reef Bathymetry 10m - 210m Multi-resolution AusSeabed products

• Other Authors: CSIRO (isManagedBy), Zoran Ristovski (hasPrincipalInvestigator)
• Format: Dataset
• Language: unknown
• Published: Commonwealth Scientific and Industrial Research Organisation
• Subjects: AusSeabed; MNF; CSIRO; Surveying (incl. hydrographic surveying); Geomatic engineering; ENGINEERING; Marine geoscience; Geology; EARTH SCIENCES; Brisbane; Magnetic Island; Fitzroy; Fitzroy Island
• Online Access: https://researchdata.edu.au/in2016v05-great-barrier-ausseabed-products/2837106; https://doi.org/10.25919/77rz-5v92

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2016_V05 titled "The Great Barrier Reef as a significant source of climatically relevant aerosol particles". The voyage took place between September 28 and October 24, 2016, departing from Brisbane (QLD) and arriving in Brisbane (QLD). This voyage consisted of three legs. Leg 1 started from Brisbane on September 28 and finished in Fitzroy Island on October 11. Leg 2 started in Fitzroy Island on October 11 and finished in Magnetic Island on October 16. Leg 3 started in Magnetic Island on October 16 and finished in Brisbane on October 24. The purpose of this voyage was to acquire observations that will address questions about the role of atmospheric composition in the Great Barrier Reef. 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 Great Barrier Reef produced from the processed EM122 and EM710 bathymetry data. 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 9.1.2. Once the raw files were converted into the HIPS and SIPS format the data was analysed for noise. Zerotide was applied, 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. 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.