Storm Bay Modelling & Information System, TAS (2018-Current)
- Commenced: 2018 (ongoing).
- Funding: FRDC 2017-215 for the Tasmanian Department of Primary Industry, Parks, Water and Environment.
- Project Leader and Further Information: Dr. Karen Wild-Allen.
Project Objectives and Progress to Date
The objectives of the Storm Bay project are to evaluate the performance of the existing CSIRO hydrodynamic model of Storm Bay; to characterise the primary sources of nutrients into Storm Bay from ocean currents, sediment resuspension, and river inputs; to deliver a validated model of water quality in Storm Bay suitable for assessing future salmon farm expansion; and to provide an information system comprising model results, observations and synthesis analyses, with links to complimentary projects (e.g. monitoring program, decision support tools, seasonal predictions).
In the 2.5 years of the project a detailed assessment of an early Storm Bay hydrodynamic model has been completed; new autonomous glider, benthic lander, mooring and field observations have been made to characterise nutrients in the Bay; and the CSIRO hydrodynamic model has been updated with a revised grid and process representation for sediment transport, biogeochemical cycling and spectral optics. Calibration and validation of the hydrodynamic and sediment models against observations is complete; analysis of field observations and calibration of the biogeochemical model is underway.
Preliminary findings show Storm Bay has a general circulation, driven by river discharge, from northwest to southeast. In summer months inshore waters mix with sub-Antarctic waters from the southwest and eddies of East Australia Current water from the southeast; fronts that form between these water masses are highly dynamic and there is strong interannual variability.
A preliminary Information Dashboard is operational with hindcast and near real time model results, a selection of observations, and publications, now available to project stakeholders; example near real time model outputs are available to the public below.
Langlais C, Schaeffer A, Legresy B, Herzfeld M, Wild-Allen K (2019) Summer Intrusions into Storm Bay. Australian Marine Science Association Conference, Poster Abstract, Perth, July 2019.
Langlais C, Schaeffer A, Legresy B, Herzfeld M, Wild-Allen K (2021) Shelf break exchanges in South-East Tasmania and its impact on Storm Bay. Australian Meteorological & Oceanography Society online conference “Science for impact”, Oral presentation 12 Feb 2021.
Wild-Allen, K., Skerratt, J., Baird, M., Langlois, C. (2021) Quantifying the supply of nutrients to Storm Bay, southeast Tasmania, to evaluate the potential impact of expanding aquaculture on water quality. Abstract submitted for oral presentation at Australian Marine Science Association Conference, July 2021.
Langlais C, Herzfeld M, Griffin D, Wild-Allen K (2018) Assessment of the CSIRO Storm Bay Hydrodynamic Model Against Observations. FRDC 2017-215 Progress Report Work Package 1.1, CSIRO Oceans & Atmosphere, Hobart.
Wild-Allen K, Andrewartha J, Beardsley J, Baird M, Eriksen R, Gregor R, Griffin D, Herzfeld M, Hughes D, Langlais C, Margvelashvili N, Martini A, Revill A, Rizwi F, Skerratt J, Schwanger C, Sherrin K, Frydman S, Wild D. (2020) Storm Bay Biogeochemical Modelling and Information System. FRDC 2017-215 Technical Milestone Report August 2020. CSIRO Oceans & Atmosphere, Hobart.
Wild-Allen K, Andrewartha J, Baird M, Beardsley J, Bodrossy L, Eriksen R, Gregor R, Griffin D, Herzfeld M, Hughes D, Langlais C, Margvelashvili N, Martini A, Revill A, Rizwi F, Skerratt J, Schwanger C, Sherrin K, Frydman S, Wild D. (2021) Storm Bay Biogeochemical Modelling and Information System. FRDC 2017-215 Technical Milestone Report February 2021. CSIRO Oceans & Atmosphere, Hobart.
Wild-Allen K, Gorton B (2019) Coastal Environmental Modelling in Storm Bay, Tasmania. CSIRO Information Sheet, June 2019.
Near Real Time Model Results