Brief descriptionThe Marine chapter of the 2016 State of the Environment (SoE) report incorporates multiple expert templates developed from streams of marine data. This metadata record describes the Expert Assessment "Pressures on the marine environment associated with climate change - ocean currents and eddies". The full Expert Assessment, including figures and tables (where provided), is attached to this record. Where available, the Data Stream(s) used to generate this Expert Assessment are accessible through the "On-line Resources" section of this record. ---------------------------------------- DESCRIPTION OF THE PRESSURE The dominant Australian boundary currents are the; East Australian Current (EAC), Indonesian Throughflow (ITF) and Leeuwin Current (LC). The EAC is the western boundary current system of the South Pacific. In the Australian region, it redistributes heat between ocean and atmosphere and the tropics and mid-latitudes. The ITF, a major component of the global ocean circulation, moves water between the Pacific and Indian Oceans. It strongly influences Australian climate and seas off Western Australia. The LC flows southwards off Western Australia redistributing Indian Ocean heat to the mid-latitudes. This differs from the cooler, equatorward flowing currents found along other eastern ocean boundaries. DATA STREAM(S) USED IN EXPERT ASSESSMENT The assessment is based on the results of analysis published in peer reviewed papers. Details of the specific data sets used to generate this assessment have not been provided. ---------------------------------------- 2016 SOE ASSESSMENT SUMMARY [see attached Expert Assessment for full details] • Assessment grade: High impact. Boundary current strength is strongly linked to major climate modes – ENSO, IOD and SAM- whose variability are predicted to increase with climate change. • Assessment trend: Deteriorating. Increasing variability of boundary current strength and heat, freshwater, and nutrient transport, will impact coastal circulation, extreme marine conditions, and the marine ecosystem. • Confidence grade:
LineageStatement: QUALITY OF DATA USED IN THE ASSESSMENT
High quality but limited length of time-series.
To describe the pressures on the marine environment associated with climate change and ocean currents and eddies for use in the Marine chapter of the 2016 State of the Environment report.
Created: 17 06 2016
162.42188,-7.20703 162.42188,-47.46094 102.65625,-47.46094 102.65625,-7.20703 162.42188,-7.20703
climate change | environmental pressures | expert assessment | ocean currents | oceanography | oceans |
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EXPERT ASSESSMENT - Pressure of Ocean Currents and Eddies [direct download] (Pressures_climate_change_ocean_currents_final.pdf)
(State of the Environment (SoE) reporting webpage)
- global : a5073976-25d9-45e9-9d33-9d7e03f38233