SS200502 Mellish Rise Bathymetry 5m - 210m Multi-resolution AusSeabed products

Full description

This layer group describes multibeam echosounder data collected on RV Southern Surveyor voyage ss200502 titled "The geology and tectonic evolution of the Mellish Rise off northeast Australia: a key piece in a tectonic puzzle". The voyage took place between January 25th and February 19th, 2005, departing from Bundaberg (QLD) and arriving in Cairns (QLD).

The purpose of this voyage was to; establish the nature and tectonic style of the margins of the Mellish Rise to help constrain plate tectonic hypotheses and the tectonic relationships to the nearby Louisiade, Queensland, Marion and Kenn Plateaus and to establish the nature and distribution of acoustic basement: is it continental and/or oceanic?

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

The dataset contains bathymetry grids of 5m to 210m resolution of the Mellish Rose produced from the processed EM300 bathymetry data.
Lineage: The data was initially processed and cleaned by Geoscience Australia. The data was further cleaned in the swath and subset editor function in CARIS at CSIRO. The data was also re-georeferenced with generated pseudo tide stations and SVP files generated through CSIRO automation pipeline.

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.