10.4225/08/51426D5DDB67C
Salles-Taing, Tristan
Tristan
Salles-Taing
CSIRO
Griffiths, Cedric
Cedric
Griffiths
CSIRO
Dyt, Chris
Chris
Dyt
CSIRO
Modelled seabed response to possible climate change scenarios over the next 50 years in the Australian Northeast - High Energy scenario datasets with Sedsim input files and output files
CSIRO
2013
Dataset
2013
https://wiki.csiro.au/display/seabedchange/Sedsim+Model
https://publications.csiro.au/rpr/pub?pid=procite:4b5ec598-8978-48c6-a4f6-077200d84276
Using data from ocean forecast models, field observations and seabed sampling we ran a numerical sediment transport model to estimate the Australian Shelf seabed evolution under three climate change scenarios. This data collection is for the High Energy climate change scenario of:
highest rainfall,
highest sediment load,
highest outflow, and
highest oceanographic conditions,
maximum sea level rise in next 50 years.
In this study, the interaction of seabed sediment types and hydrodynamic forces in the northeastern region has been investigated using a state-of-the-art numerical model, Sedsim. The simulation area for this collection covers the northeast Australia continental shelf and abyssal basins which include the Great Barrier Reef, the Marion and Queensland plateaus, the Cato, Townsville and Queensland troughs, the New South Wales Shelf and the coast from south of Jervis Bay up to Princess Charlotte Bay in the North.
The model uses the known grain-size distribution of the present-day seabed based on a comprehensive analysis of currently available seabed data Information available from this data source includes grainsize, mud content, rock exposure, and estimates of critical seabed shear stress. This sediment layer is incorporated in the latest high-resolution (0.0025°) seabed bathymetry obtained from the Australian National Oceans Office (NOO). The seabed topography and present-day sediment layer are represented by a 566 (columns) by 550 (rows) grid with a spatial resolution of 2.1 km. The environmental forcing factors considered in the present model are sediment-laden river flows and turbidity currents, waves, tides, wind-driven currents, sea level change, submarine slope failure and carbonate sediment production.