Dr Ryan Holmes

Dr Ryan Holmes

Physical oceanographer

Conference Talks and Seminars

2024

  • Air-sea coupling over Tropical Instability Waves: Impacts on Pacific climate and model bias; OASIS Air-sea flux community webinar, 45 minute talk, October 2024, online.

  • What is a tide prediction a prediction of? Australian Climate Service Coastal Hazards Working Package Workshop, 5 minute talk, October 2024, Hobart.

  • An early warning system for Australian coastal sea level extremes; Australian Marine Science Association Annual Conference, 6 minute talk, September 2024, Hobart.

  • An early warning system for Australian coastal sea level extremes; ACCESS-NRI Community Workshop, Poster presentation, September 2024, Canberra.

  • Forecasting coastal hazards at S2S time-scales: An early warning system for high tide flooding; COSPac Pacific meteorological services training workshop, 30 minute presentation, August 2024, online.

  • Tidal constituents’ evolution and its implications for tide prediction around Australia using ANCHORS tide gauge dataset; Ocean Observations and Modelling Workshop (COSIMA/ACOMO/IMOS), 15 minute talk, July 2024, Canberra.

  • Comparing NEMO and ACCESS-OM2: biases, strengths and weaknesses; Ocean Observations and Modelling Workshop (COSIMA/ACOMO/IMOS), Poster presentation, July 2024, Canberra.

  • An early warning system for Australian coastal sea level extremes; Ocean Observations and Modelling Workshop (COSIMA/ACOMO/IMOS), Poster presentation, July 2024, Canberra.

  • An early warning system for high tide flooding on the Australian coastline - tidal analysis issues; Bureau of Meteorology Tides Workshop, 10 minute talk, March 2024, Melbourne.

  • Air-sea coupling over Tropical Instability Waves: Impacts on Pacific climate and model bias; Australian Meteorological and Oceanographic Society Annual Conference, 15 minute talk, February 2024, Canberra.

  • An early warning system for high tide flooding on the Australian coastline; Australian Meteorological and Oceanographic Society Annual Conference, 15 minute talk, February 2024, Canberra.

  • Equatorial ocean waves - interactions, role in ENSO and impact on abyssal ocean mixing; Bureau of Meteorology Dynamics Forum, 60 minute seminar, February 12th 2024, Sydney/Melbourne online.

2023

  • A prototype early warning system for high tide flooding in Australia; Australian Climate Service Coastal Hazards Workshop, 30 minute talk, October 2023, Melbourne.

  • Seasonal sea level forecasts for the Australian Coastline; Bureau of Meteorology Research and Development Workshop, Poster, August 2023, Melbourne.

  • Impact of mesoscale ocean processes on tropical Pacific circulation, model bias and ENSO; Bureau of Meteorology Seasonal Prediction Meeting, 30 minute talk, June 2023, online.

  • Rectification of small/fast processes and their role in ocean heat transport and El Nino; University of Sydney Oceanography Workshop, March 2023, University of Sydney School of Geosciences.

2022

  • Challenges in modelling ocean circulation and climate into the future, one hour research seminar to Marine Science Masters students as part of Topics in Marine Science (TAMS)/MARS5009; Sydney Institute for Marine Science (SIMS).

  • Adiabatic and diabatic signatures of ocean temperature variability. AGU Ocean Sciences Meeting Conference talk, March 2022. Youtube video of talk

  • Sensitivity of a Coarse-Resolution Global Ocean Model to Spatially Variable Neutral Diffusion. International Conference on Southern Hemisphere Meteorology and Oceanography (ICSHMO) Conference talk, February 2022. Youtube video of talk

  • Invited keynote talk, The geography of numerical mixing in a suite of global ocean models, European DRAKKAR ocean modelling meeting online talk, February 2022.

2021

  • Adiabatic and diabatic signatures of ocean temperature variability in ACCESS-CM2 (November 2021), Centre of Excellence for Climate Extremes (CLEX) Annual Workshop poster presentation.

  • The ocean’s role in climate and climate change: Challenges in modelling ocean circulation into the future (November 2021), University of Sydney GEOS1003 student outreach talk.

  • The geography of numerical mixing in a suite of global ocean models (September 2021), Future Directions in Basin and Global High-resolution Ocean Modelling. (online), Talk.

  • The geography of numerical mixing in a suite of global ocean models (April 2021), European Geophysical Union General Assembly (online), Talk. Youtube video

  • Adiabatic and diabatic signatures of ocean temperature variability (February 2021), Australian Meteorological and Oceanographic Society Annual Conference (online), Talk.

  • Long-term global ocean heat content change driven by sub-polar surface heat fluxes (February 2021), Australian Meteorological and Oceanographic Society Annual Conference (online), Talk.

2020

  • Numerical mixing in ACCESS-OM2 (November 2020), Annual ARC Centre of Excellence for Climate Extremes meeting (online), Australia, Poster.

  • Ocean Heat Content internal variability in various volume-percentile coordinates (November 2020), OCCSeaLe workshop on Workshop on Ocean Warming and Sea Level Rise (online), Australia, Talk.

  • Numerical mixing in ACCESS-OM2 (May 2020), Annual COSIMA workshop remote meeting, Australia, Talk.

2019

  • Diathermal heat transport in the ACCESS global ocean models (November 2019), Ocean heat content change and it’s impact on sea level workshop, UNSW, Australia

  • Atlantic ocean heat transport enabled by Indo-Pacific heat uptake and mixing (November 2019), CLEX Annual Workshop Poster, Hobart, Australia

  • Atlantic ocean heat transport enabled by Indo-Pacific heat uptake and mixing (October 2019), CLEX Tropical Variability Seminar, Sydney, Australia

  • Global ocean heat transport and mixing in the eastern tropical Pacific (September-October 2019), Three 1 hour seminars at LOCEAN Paris, IGD Grenoble and LEGOS Toulouse, France

  • Diabatic contributions to the ocean’s meridional heat transport (September 2019), Talk at the COSIMA Workshop Talk, Australian National University, Canberra, Australia

  • Diabatic Contributions to the Ocean’s Meridional Heat Transport (July 2019), Talk at IUGG conference, Montreal, Canada

  • Tracer Transport within Abyssal Mixing Layers (July 2019), Talk at IUGG conference, Montreal, Canada

  • Warm Water Volume Variability over ENSO events (January 2019), Talk at the Centre for Southern Hemisphere Ocean Research ENSO Symposium, CSIRO, Hobart, Australia

2018

  • Diabatic contributions to the ocean’s meridional heat transport (December 2018), Poster presentation at the Frontiers of Fluid Mechanics workshop, Bureau of Meteorology, Sydney, Australia

  • Tracer transport within abyssal mixing layers (December 2018), talk at the bottom boundary layer turbulence and the ocean’s overturning circulation workshop, Massachusetts Institute of Technology, Boston, U.S.A.

  • Dianeutral circulation in the abyss: Tracer transport and the role of seafloor geometry (November 2018), Departmental seminar at the National Centre for Atmospheric Research (NCAR), Boulder, Colorado, U.S.A.

  • Diabatic contributions to the ocean’s meridional heat transport (November 2018), Poster presentation at the Centre of Excellence for Climate Extremes (CLEX) Annual workshop, Wollongong, Australia

  • Ocean heat transport in temperature coordinates and what it can tell us about ocean processes and their role in climate (July 2018), Research School of Earth Sciences, Australian National University, Canberra, Australia

  • Numerical Mixing in the COSIMA models (May 2018), COSIMA Workshop Talk, Australian National University, Canberra, Australia

  • Water mass transformation techniques applied to two problems in oceanography: 1) tropical heat transport and 2) Antarctic Bottom Water upwelling (Feb 2018), College of Oceanic and Atmospheric Sciences Seminar, Oregon State University, Oregon, U.S.A.

  • The Pacific Cold Tongue: The Blender of the Global Ocean (Feb 2018), Ocean Sciences Meeting Poster, Portland, Oregon, U.S.A.

2017

  • Warm-to-Cold Ocean Heat Transport and its Variability in the Pacific (Nov 2017, with Maurice Huguenin-Virchaux), ENSO Workshop Talk, University of New South Wales, Sydney, Australia

  • Oceanic Internal Variability and ENSO (Nov 2017), ENSO Workshop Talk, University of New South Wales, Sydney, Australia

  • The Pacific Cold Tongue: The Blender of the Global Ocean (Nov 2017), Poster and Lightening Lecture ARCCSS and CLEX annual workshop, Canberra, Australia

  • Ridges, Seamounts, Troughs and Bowls: Topographic Control of the Dianeutral Circulation in the Abyssal Ocean (Aug 2017), IUGG Good Hope for Earth Sciences Conference Talk, Cape Town, South Africa

  • Tropical Instability Wave Fronts and Gravity Currents in the Tropical Pacific Ocean (May 2017), Talk at Energy Transfers in the Atmosphere and Ocean Workshop, Hamburg, Germany

  • Oceanic Internal Variability, Tropical Instability Waves and the El Nino-Southern Oscillation (Apr 2017), Talk at European Geophysical Union Conference, Vienna, Austria

  • Eddies, waves and internal variability in the tropical Pacific Ocean: Implications for the El Nino - Southern Oscillation (Feb 2017), Talk at Australian Meteorological and Oceanographic Society Annual Conference Canberra, Australian Capital Territory, Australia

2016

  • Eddies, waves and internal variability in the tropical Pacific Ocean: Implications for the El Nino - Southern Oscillation (Nov 2016), Invited Talk at the Australian Research Council Centre of Excellence for Climate System Science Workshop, Lorne, Victoria, Australia

  • Interactions Between Kelvin waves and Tropical Instability Waves in the Equatorial Pacific Ocean and their Implications for SST Variability (Oct 2016), ROMS Meeting Talk, Hobart, Tasmania, Australia

  • Tropical Instability Waves and Mixing in the Equatorial Pacific Ocean (Oct 2016), Physical Oceanography Dissertation Symposium Talk, University of Hawaii, Honolulu, HA, USA

  • Pacific Ocean Variability in an ACCESS 1/4deg-ocean Coupled Model (May 2016), COSIMA Workshop Talk, Hobart, Tasmania, Australia

  • Tropical Instability Waves and Mixing in the Equatorial Pacific Ocean (Feb 2016), PhD Defense Talk, Department of Earth System Science, Stanford University, California, USA

  • Evidence for Seafloor-Intensified Mixing by Surface-Generated Equatorial Waves (Feb 2016), Ocean Sciences Meeting Talk, New Orleans, Louisiana, USA

2015

  • Scattering of Equatorial Kelvin Waves by Tropical Instability Vortices (Jun 2015), 20th Conference on Atmospheric and Oceanic Fluid Dynamics Poster Presentation, Minneapolis, Minnesota, USA

  • Tropical Instability Waves and Equatorial Mixing (May 2015), Geophysical Fluid Dynamics Laboratory Seminar, Australian National University, Australia

2014

  • Equatorial Turbulence and Tropical Instability Waves (Dec 2014), AGU Annual Meeting Abstract and Talk, San Francisco, California, USA

  • Equatorial Mixing and Tropical Instability Waves, Fluid Mechanics Seminar (Oct 2014), School of Mathematics and Statistics, University of New South Wales, Sydney NSW, Australia

  • Equatorial Mixing and Tropical Instability Waves (Jul 2014), College of Oceanic and Atmospheric Sciences Seminar, Oregon State University, Corvallis, Oregon

  • Equatorial Mixing and Tropical Instability Waves (Jun 2014), Climate Change Research Centre Seminar, University of New South Wales, Sydney NSW, Australia

  • The Vortex Dynamics of the Modulation of Equatorial Mixing by Tropical Instability Waves (Feb 2014), Ocean Sciences Poster, Honolulu, Hawaii, USA

2013

  • The Vortex Dynamics of the Modulation of Equatorial Mixing by Tropical Instability Waves (Dec 2013), AGU Annual Meeting Poster, San Francisco, California

  • Lagrangian study of the vortex dynamics of tropical instability vortex (TIV) core water formation (Mar 2013), 33rd Annual CNLS Conference: Ocean Turbulence Abstract and Poster, Santa Fe, New Mexico, USA

2012

  • Potential Vorticity Dynamics of Tropical Instability Vortices (Dec 2012), Geophysical Fluid Dynamics Laboratory Seminar, Australian National University, Canberra ACT, Australia

  • On the Potential Vorticity Dynamics of Tropical Instability Vortices (Dec 2012), AGU Annual Meeting Talk, San Francisco, California, USA