Dr Ryan Mahony Holmes
Research Associate

Dr Ryan Mahony Holmes

Faculty of Science
COE for Climate System Science
I am a Senior Research Associate in the Climate Change Research Centre and the Department of Applied Mathematics at the University of New South Wales. I received my PhD in physical oceanography from Stanford University in March 2016. I did my undergraduate degree in Physics at the Australian National University, with a study abroad year at the University of California Santa Barbara.

 

My research interests focus on the physical circulation of the equatorial oceans and how processes on relatively short timescales (months to seconds), such as mesoscale and submesoscale eddies, tropical instability waves (TIWs), internal gravity waves and small-scale turbulence, can influence the seasonal, inter-annual and decadal variability of the tropical regions. Small-scale vertical and lateral mixing are important are important factors in the sea surface temperature and kinetic energy budgets of the large-scale equatorial circulation and influence how heat and other tracers are transferred through the surface ocean and stored in the deep ocean. Small-scale processes in the equatorial oceans also influence phenomena such as the propagation of equatorial Kelvin waves and coupled modes of variability such as the El Niño - Southern Oscillation (ENSO). I use a range of idealised and realistic ocean models combined with analysis of satellite and in-situ oceanographic data to better understand how these multi-scale processes interact.
Phone
+61293858952
Location
Room 456, Level 4 Matthews Building

Publications

  • Journal articles | 2021
    Dr Ryan Mahony Holmes
    Bladwell C; Holmes RM; Zika JD, 2021, 'Internal salt content: a useful framework for understanding the oceanic branch of the water cycle', Journal of Physical Oceanography, http://dx.doi.org/10.1175/jpo-d-20-0212.1
    Journal articles | 2021
    Dr Ryan Mahony Holmes
    Savita A; Zika JD; Domingues CM; Marsland SJ; Evans GD; Dias FB; Holmes RM; Hogg AM, 2021, 'Super Residual Circulation: a new perspective on ocean vertical heat transport', Journal of Physical Oceanography, http://dx.doi.org/10.1175/jpo-d-21-0008.1
    Journal articles | 2021
    Dr Ryan Mahony Holmes
    Cherian DA; Whitt DB; Holmes RM; Lien RC; Bachman SD; Large WG, 2021, 'Off-equatorial deep-cycle turbulence forced by tropical instability waves in the equatorial pacific', Journal of Physical Oceanography, vol. 51, pp. 1575 - 1593, http://dx.doi.org/10.1175/JPO-D-20-0229.1
    Journal articles | 2021
    Dr Ryan Mahony Holmes
    Sohail T; Irving DB; Zika JD; Holmes RM; Church JA, 2021, 'Fifty Year Trends in Global Ocean Heat Content Traced to Surface Heat Fluxes in the Sub-Polar Ocean', Geophysical Research Letters, vol. 48, http://dx.doi.org/10.1029/2020GL091439
    Journal articles | 2020
    Dr Ryan Mahony Holmes
    Archer M; Schaeffer A; Keating S; Roughan M; Holmes R; Siegelman L, 2020, 'Observations of submesoscale variability and frontal subduction within the mesoscale eddy field of the tasman sea', Journal of Physical Oceanography, vol. 50, pp. 1509 - 1529, http://dx.doi.org/10.1175/JPO-D-19-0131.1
    Journal articles | 2020
    Dr Ryan Mahony Holmes
    Huguenin MF; Holmes RM; England MH, 2020, 'Key role of diabatic processes in regulating warm water volume variability over ENSO events', Journal of Climate, vol. 33, pp. 9945 - 9964, http://dx.doi.org/10.1175/JCLI-D-20-0198.1
    Journal articles | 2020
    Dr Ryan Mahony Holmes
    Kiss AE; McC Hogg A; Hannah N; Boeira Dias F; B Brassington G; Chamberlain MA; Chapman C; Dobrohotoff P; Domingues CM; Duran ER; England MH; Fiedler R; Griffies SM; Heerdegen A; Heil P; Holmes RM; Klocker A; Marsland SJ; Morrison AK; Munroe J; Nikurashin M; Oke PR; Pilo GS; Richet O; Savita A; Spence P; Stewart KD; Ward ML; Wu F; Zhang X, 2020, 'ACCESS-OM2 v1.0: A global ocean-sea ice model at three resolutions', Geoscientific Model Development, vol. 13, pp. 401 - 442, http://dx.doi.org/10.5194/gmd-13-401-2020
    Journal articles | 2020
    Dr Ryan Mahony Holmes
    Assene F; Morel Y; Delpech A; Aguedjou M; Jouanno J; Cravatte S; Marin F; Ménesguen C; Chaigneau A; Dadou I; Alory G; Holmes R; Bourlès B; Koch-Larrouy A, 2020, 'From mixing to the large scale circulation: how the inverse cascade is involved in the formation of the subsurface currents in the gulf of guinea', Fluids, vol. 5, http://dx.doi.org/10.3390/fluids5030147
    Journal articles | 2020
    Dr Ryan Mahony Holmes
    Holmes RM; McDougall TJ, 2020, 'Diapycnal transport near a sloping bottom boundary', Journal of Physical Oceanography, vol. 50, pp. 3253 - 3266, http://dx.doi.org/10.1175/JPO-D-20-0066.1
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Holmes RM; Zika JD; England MH, 2019, 'Diathermal heat transport in a global ocean Model', Journal of Physical Oceanography, vol. 49, pp. 141 - 161, http://dx.doi.org/10.1175/JPO-D-18-0098.1
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Webb DJ; Holmes RM; Spence P; England MH, 2019, 'Barotropic Kelvin Wave-Induced Bottom Boundary Layer Warming Along the West Antarctic Peninsula', Journal of Geophysical Research: Oceans, vol. 124, pp. 1595 - 1615, http://dx.doi.org/10.1029/2018JC014227
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Holmes RM; Zika JD; England MH, 2019, 'Reply to ‘‘comments on ‘diathermal heat transport in a global ocean model’’’', Journal of Physical Oceanography, vol. 49, pp. 2195 - 2197, http://dx.doi.org/10.1175/JPO-D-19-0139.1
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Holmes RM; Zika JD; Ferrari R; Thompson AF; Newsom ER; England MH, 2019, 'Atlantic Ocean Heat Transport Enabled by Indo-Pacific Heat Uptake and Mixing', Geophysical Research Letters, vol. 46, pp. 13939 - 13949, http://dx.doi.org/10.1029/2019GL085160
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Holmes RM; DE LAVERGNE C; McDougall TJ, 2019, 'Tracer transport within abyssal mixing layers', Journal of Physical Oceanography, vol. 49, pp. 2669 - 2695, http://dx.doi.org/10.1175/JPO-D-19-0006.1
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Santoso A; Hendon H; Watkins A; Power S; Dommenget D; England MH; Frankcombe L; Holbrook NJ; Holmes R; Hope P; Lim EP; Luo JJ; McGregor S; Neske S; Nguyen H; Pepler A; Rashid H; Gupta AS; Taschetto AS; Wang G; Abellán E; Sullivan A; Huguenin MF; Gamble F; Delage F, 2019, 'Dynamics and predictability of El Niño-Southern oscillation: An Australian perspective on progress and challenges', Bulletin of the American Meteorological Society, vol. 100, pp. 403 - 420, http://dx.doi.org/10.1175/BAMS-D-18-0057.1
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Holmes RM; McGregor S; Santoso A; England MH, 2019, 'Contribution of tropical instability waves to ENSO irregularity', Climate Dynamics, vol. 52, pp. 1837 - 1855, http://dx.doi.org/10.1007/s00382-018-4217-0
    Journal articles | 2019
    Dr Ryan Mahony Holmes
    Groeskamp S; De Lavergne C; Holmes R; Tamsitt V; Frenger I; Chapman CC; Newsom E; Stanley GJ, 2019, 'Climate recorded in seawater: A workshop on water-mass transformation analysis for ocean and climate studies', Bulletin of the American Meteorological Society, vol. 100, pp. ES243 - ES247, http://dx.doi.org/10.1175/BAMS-D-19-0153.1
    Journal articles | 2018
    Dr Ryan Mahony Holmes
    Holmes RM; de Lavergne C; Mcdougall TJ, 2018, 'Ridges, seamounts, troughs, and bowls: Topographic control of the dianeutral circulation in the abyssal ocean', Journal of Physical Oceanography, vol. 48, pp. 861 - 882, http://dx.doi.org/10.1175/JPO-D-17-0141.1
    Journal articles | 2018
    Dr Ryan Mahony Holmes
    Warner SJ; Holmes RM; Hawkins EHM; Hoecker-Martínez MS; Savage AC; Moum JN, 2018, 'Buoyant gravity currents released from tropical instability waves', Journal of Physical Oceanography, vol. 48, pp. 361 - 382, http://dx.doi.org/10.1175/JPO-D-17-0144.1
    Journal articles | 2017
    Dr Ryan Mahony Holmes
    Spence P; Holmes RM; Hogg AMC; Griffies SM; Stewart KD; England MH, 2017, 'Localized rapid warming ofWest Antarctic subsurface waters by remote winds', Nature Climate Change, vol. 7, pp. 595 - 603, http://dx.doi.org/10.1038/NCLIMATE3335
    Journal articles | 2017
    Dr Ryan Mahony Holmes
    De Lavergne C; Madec G; Roquet F; Holmes RM; McDougall TJ, 2017, 'Abyssal ocean overturning shaped by seafloor distribution', Nature, vol. 551, pp. 181 - 186, http://dx.doi.org/10.1038/nature24472
    Journal articles | 2015
    Dr Ryan Mahony Holmes
    Holmes RM; Thomas LN, 2015, 'The Modulation of Equatorial Turbulence by Tropical Instability Waves in a Regional Ocean Model', J. Phys. Oceanogr., vol. 45, pp. 1155 - 1173, http://dx.doi.org/10.1175/JPO-D-14-0209.1
    Journal articles | 2014
    Dr Ryan Mahony Holmes
    Holmes RM; Thomas LN; Thompson L; Darr D, 2014, 'Potential Vorticity Dynamics of Tropical Instability Vortices', J. Phys. Oceanogr., vol. 44, pp. 995 - 1011, http://dx.doi.org/10.1175/JPO-D-13-0157.1
    Journal articles | 2011
    Dr Ryan Mahony Holmes
    Holmes RM; Williams DRM, 2011, 'Popout transitions in weakly stretched single-chain multi-block copolymers in poor solvents', EPL, vol. 95, pp. 63004 - 63004, http://dx.doi.org/10.1209/0295-5075/95/63004
    Journal articles | 2011
    Dr Ryan Mahony Holmes
    Holmes RM; Williams DRM, 2011, 'Single Chain Asymmetric Block Copolymers in Poor Solvents. Candidates for Patchy Colloids', Macromolecules, vol. 44, pp. 6172 - 6181, http://dx.doi.org/10.1021/ma200085w
    Journal articles |
    Dr Ryan Mahony Holmes
    Holmes R; Zika J; Griffies S; Hogg A; Kiss A; England M, 'The geography of numerical mixing in a suite of global ocean models', , http://dx.doi.org/10.5194/egusphere-egu21-9319
    Journal articles |
    Dr Ryan Mahony Holmes
    Huguenin M; Holmes R; England M, 'Recent trajectory of ocean heat uptake estimated from novel 1972-2017 ocean sea-ice model hindcast simulations', , http://dx.doi.org/10.5194/egusphere-egu21-8096
    Journal articles |
    Dr Ryan Mahony Holmes
    Zika J; Savita A; Holmes R; Sohail T, 'What is the heat uptake potential of Antarctic Bottom Water?', , http://dx.doi.org/10.5194/egusphere-egu21-3825
    Journal articles |
    Dr Ryan Mahony Holmes
    McDougall TJ; Barker PM; Holmes RM; Pawlowicz R; Griffies SM; Durack PJ, 'The interpretation of temperature and salinity variables in numerical ocean model output, and the calculation of heat fluxes and heat content', , http://dx.doi.org/10.5194/gmd-2020-426
    Journal articles |
    Dr Ryan Mahony Holmes
    Holmes RM; Zika JD; Griffies SM; Hogg AM; Kiss AE; England MH, 'The geography of numerical mixing in a suite of global ocean models', , http://dx.doi.org/10.1002/essoar.10504439.1

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