CSIRO Australia Coastal Sealevel Simulations

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About this Collection

CSIRO Australia Coastal Sealevel Simulations

Projections of sea level rise (SLR) will lead to increasing coastal impacts during extreme sea level events globally, however, there is significant uncertainty around short-term coastal sea level variability and the attendant frequency and severity of extreme sea level events. In this study, we investigate drivers of coastal sea level variability (... more

Atmospheric Sciences not elsewhere classified Climate Change Processes Climatology (excl. Climate Change Processes) Natural Hazards Physical Oceanography



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1300 363 400

Sea level storm surge coastal tides climate change

Regional Ocean Circulation (ROMS) numerical model ( simulations configured to run in barotropic or ‘depth-averaged’ mode. The model grid spans the Australian continent at 5 km resolution. For simulations including tides, the tidal currents and heights were derived from the TPXO7.2 global model and applied to the open model boundaries. TPXO7.2. Eight primary tidal constituents (M2, S2, N2, K2, K1, O1, P1, Q1) are provided on a 1/4 of a degree resolution. Baseline experiment: The model experiments performed are also used to investigate non-linear tide-surge interactions as well as the meteorological causes of extreme sea levels around the Australian coastline. Three baseline experiments are run over the period 1981-2012. The first experiment, B-TM, includes tidal and meteorological forcing, the second, B-T, tide-forcing only and the third, B-M, meteorological forcing only. Meteorological forcing for these experiments is obtained from the Climate Forecast System Reanalyses (CFSR) dataset which provides meteorological variables across the globe at hourly temporal resolution and approximately 38 km spatial resolution from 1979 to 2012. Climate change experiments: Meteorological forcing from four GCMs from the 5th Phase of the Coupled Model Intercomparison Project (CMIP5) is undertaken to assess how climate change will affect sea levels around the Australian coast.Tides were not included in the simulations forced by climate models.

The Australian Climate Change Science Program (ACCSP) and the Earth System and Climate Change Hub of Australian Government’s National Environmental Science Programme (NESP) is acknowledged for funding this research. We also acknowledge the CSIRO High Performance Computing facility which provided computational support for the work described in this study.

CSIRO Data Licence

CSIRO (Australia)

Colberg, Frank; McInnes, Kathy; O'Grady, Julian; Hoeke, Ron (2018): CSIRO Australia Coastal Sealevel Simulations. v1. CSIRO. Data Collection.

All Rights (including copyright) CSIRO 2018.

The metadata and files (if any) are available to the public.

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Location Details

5°0′0″ S

45°0′0″ S

160°0′0″ E

105°0′0″ E


About this Project

NESP ESSC Coastal Hazards in a Variable and Changing Climate

Earth Systems and Climate Change Hub: PROJECT 2.10: Coastal hazards in a variable and changing climate As sea levels rise, coastal areas are likely to experience increased erosion and inundation, which poses a threat to communities, infrastructure and coastal ecosystems. The effect of storm surges and waves will amplify these impacts, which vary fr... more

Kathy McInnes

Frank Colberg

Kathy McInnes

Julian O'Grady

Ron Hoeke

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