Invigorating ocean boundary current systems around Australia during 1979–2014: As simulated in a near‐global eddy‐resolving ocean model

摘要: Ocean boundary currents, transporting water masses and marine biota along the coastlines, are important for regional climate ecosystem functions. In this study, we review dominant multi-decadal trends of ocean currents around Australia. Using an eddy-resolving global circulation model, study has revealed that major current systems Australia, East Australian Current (EAC), Indonesian Throughflow (ITF), Leeuwin Current, South Flinders have strengthened during 1979–2014, consistent with existing observations. Eddy energetics in EAC, ITF/South Equatorial southeast Indian Ocean, also enhanced same period. The strengthening primarily driven by large scale wind patterns associated modes variability change – phase shift Inter-decadal Pacific Oscillation/Pacific Decadal Oscillation strengthens ITF Current/South Current; poleward surface winds subtropical gyres reinforce EAC Current. invigorating induced extreme oceanographic conditions coastlines recent years, including ecosystems off east coast Australia consecutive Ningaloo Nino heatwave events west 2011–2013. Understanding long-term decadal variations is crucial to project future changes coastal under influence human-induced greenhouse gas forcing.