Associate Professor

Research Interests

Geophysical fluid dynamics, wave/eddy-mean flow interactions, global/regional/idealised numerical modelling of the ocean, inverse and data assimilation methods, high performance computing, applied mathematics

Selected Publications

  Article

1. Climate-adaptive and cascade-constrained machine learning prediction for sea surface height under greenhouse warming
   • Author(s): Zheng, Tainmu; Chen, Ru; Su, Xin; MAK, Julian; Huang, Gang; Yan, Bingzheng
   • Source: Journal of Advances in Modeling Earth Systems, v. 18, (7), article number e2025MS005717
   • Year: 2026


2. An energetically and observationally constrained mesoscale parameterization for ocean climate models
   • Author(s): Torres, Romain; Waldman, Robin; Madec, Gurvan; de Lavergne, Casimir; Séférian, Roland; Mak, Julian
   • Source: Journal of Advances in Modeling Earth Systems, v. 17, (12), article number e2025MS005394
   • Year: 2025


3. Negative sensitivity of Southern Ocean circumpolar transport to increased wind stress controlled by residual overturning
   • Author(s): Lee, Han Seul; Maddison, James R.; Mak, Julian; Marshall, David P.; Wang, Yan
   • Source: Tellus, Series A: Dynamic Meteorology and Oceanography, v. 77, (1), p. 199-220
   • Year: 2025


4. Adjoint-Based Online Learning of Two-Layer Quasi-Geostrophic Baroclinic Turbulence
   • Author(s): YAN, Feier; Frezat, H.; Le Sommer, J.; Mak, J.; Otness, K.
   • Source: Journal of Advances in Modeling Earth Systems, v. 17, (7), article number e2024MS004857
   • Year: 2025


5. Improved Theoretical Estimates of the Zonal Propagation of Global Nonlinear Mesoscale Eddies
   • Author(s): LIU, Ran; Wang, Yan; Zhai, Xiaoming; Balwada, Dhruv; Mak, Julian
   • Source: Journal of Geophysical Research: Oceans, v. 130, (6), article number e2025JC022518
   • Year: 2025


6. A Two-Dimensional Model for Eddy Saturation and Frictional Control in the Southern Ocean
   • Author(s): Maddison, J. R.; Marshall, D. P.; Mak, J.; Maurer-Song, K.
   • Source: Journal of Advances in Modeling Earth Systems, v. 17, (4), article number e2024MS004682
   • Year: 2025


7. Parameterizing eddy buoyancy fluxes across prograde shelf/slope fronts using a slope-aware geometric closure
   • Author(s): Wei, Huaiyu; Wang, Yan; Mak, Julian
   • Source: Journal of Physical Oceanography, v. 54, (2), p. 359-377
   • Year: 2024


8. On the Choice of Training Data for Machine Learning of Geostrophic Mesoscale Turbulence
   • Author(s): Yan, F. E.; Mak, J.; Wang, Y.
   • Source: Journal of Advances in Modeling Earth Systems, v. 16, (2), article number e2023MS003915
   • Year: 2024


9. Edge-wave phase shifts versus normal-mode phase tilts in an Eady problem with a sloping boundary
   • Author(s): Mak, J.; Harnik, N.; Heifetz, E.; Kumar, G.; Ong, E. Q.Y.
   • Source: Physical Review Fluids, v. 9, (8), article number 083905
   • Year: 2024


10. Combined physical and biogeochemical assessment of mesoscale eddy parameterisations in ocean models: Eddy-induced advection at eddy-permitting resolutions
    • Author(s): Ruan, X.; Couespel, D.; Lévy, M.; Li, J.; Mak, J.; Wang, Y.
    • Source: Ocean Modelling, v. 190, article number 102396
    • Year: 2024


11. Unveiling Prasinovirus diversity and host specificity through targeted enrichment in the South China Sea
    • Author(s): Thomy, Julie; Sanchez, Frederic; Prioux, Camille; Yau, Sheree; XU, Yangbing; Mak, Julian; Sun, Ruixian; Piganeau, Gwenael; Yung, Charmaine C.M.
    • Source: ISME Communications, v. 4, (1), article number ycae109
    • Year: 2024


12. Global Estimation of the Eddy Kinetic Energy Dissipation From a Diagnostic Energy Balance
    • Author(s): Torres, Romain; Waldman, Robin; Mak, Julian; Séférian, Roland
    • Source: Geophysical Research Letters, v. 50, (20), article number e2023GL104688
    • Year: 2023


13. Combined physical and biogeochemical assessment of mesoscale eddy parameterisations in ocean models: Eddy induced advection at non-eddying resolutions
    • Author(s): Ruan, X.; Couespel, D.; Lévy, M.; Li, J.; Mak, J.; Wang, Y.
    • Source: Ocean Modelling, v. 183, article number 102204
    • Year: 2023


14. Scale-Awareness in an Eddy Energy Constrained Mesoscale Eddy Parameterization
    • Author(s): Mak, J.; Maddison, J. R.; Marshall, D. P.; Ruan, X.; Wang, Y.; Yeow, L.
    • Source: Journal of Advances in Modeling Earth Systems, v. 15, (12), article number e2023MS003886
    • Year: 2023


15. Scalings for Eddy Buoyancy Fluxes Across Prograde Shelf/Slope Fronts
    • Author(s): Wei, Huaiyu; Wang, Yan; Stewart, Andrew L.; Mak, Julian
    • Source: Journal of Advances in Modeling Earth Systems, v. 14, (12), article number e2022MS003229
    • Year: 2022


16. Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale
    • Author(s): Mak, J.; Marshall, D. P.; Madec, G.; Maddison, J. R.
    • Source: Geophysical Research Letters, v. 49, (8), article number e2021GL097259
    • Year: 2022


17. On Constraining the Mesoscale Eddy Energy Dissipation Time-Scale
    • Author(s): Mak, J.; Avdis, A.; David, T.; LEE, H. S.; NA, Y.; Wang, Y.; YAN, F. E.
    • Source: Journal of Advances in Modeling Earth Systems, v. 14, (11), article number e2022MS003223
    • Year: 2022


18. Inertio-gravity Poincaré waves and the quantum relativistic Klein-Gordon equation, near-inertial waves and the non-relativistic Schrödinger equation
    • Author(s): Heifetz, E.; Maas, Leo R.M.; Mak, J.; Pomerantz, I.
    • Source: Physics of Fluids, v. 34, (11), article number 116608
    • Year: 2022


19. Distinct interaction effects of warming and anthropogenic input on diatoms and dinoflagellates in an urbanized estuarine ecosystem
    • Author(s): Cheung, Yan Yin; Cheung, Shunyan; Mak, Julian; Liu, Kailin; Xia, Xiaomin; Zhang, Xiaodong; Yung, Yingkit; Liu, Hongbin
    • Source: Global Change Biology, v. 27, (15), p. 3463-3473
    • Year: 2021


20. Analogy between electro-magnetic waves in cold unmagnetized plasma and shallow water inertio-gravity waves in geophysical systems
    • Author(s): Heifetz, E.; Maas, L. R.M.; Mak, J.; Pomerantz, I.
    • Source: Journal of Physics Communications, v. 5, (12), article number 125006
    • Year: 2021


21. Zero absolute vorticity plane Couette flow as an hydrodynamic representation of quantum energy states under perpendicular magnetic field
    • Author(s): Heifetz, E.; Maas, L. R.M.; Mak, J.
    • Source: Physics of Fluids, v. 33, (12), article number 127120
    • Year: 2021


22. Implementation of a geometrically informed and energetically constrained mesoscale eddy parameterization in an ocean circulation model
    • Author(s): Mak, J.; Maddison, J. R.; Marshall, D. P.; Munday, D. R.
    • Source: Journal of Physical Oceanography, v. 48, (10), p. 2363-2382
    • Year: 2018


23. Vortex disruption by magnetohydrodynamic feedback
    • Author(s): Mak, J.; Griffiths, S. D.; Hughes, D. W.
    • Source: Physical Review Fluids, v. 2, (11), article number 113701
    • Year: 2017


24. Emergent eddy saturation from an energy constrained eddy parameterisation
    • Author(s): Mak, J.; Marshall, D. P.; Maddison, J. R.; Bachman, S. D.
    • Source: Ocean Modelling, v. 112, p. 125-138
    • Year: 2017


25. Evaluation of a scalar eddy transport coefficient based on geometric constraints
    • Author(s): Bachman, S. D.; Marshall, D. P.; Maddison, J. R.; Mak, J.
    • Source: Ocean Modelling, v. 109, p. 44-54
    • Year: 2017


26. Shear flow instabilities in shallow-water magnetohydrodynamics
    • Author(s): Mak, J.; Griffiths, S. D.; Hughes, D. W.
    • Source: Journal of Fluid Mechanics, v. 788, p. 767-796
    • Year: 2016


27. A new gauge-invariant method for diagnosing eddy diffusivities
    • Author(s): Mak, J.; Maddison, J. R.; Marshall, D. P.
    • Source: Ocean Modelling, v. 104, p. 252-268
    • Year: 2016


28. Stratified shear flow instabilities in the non-Boussinesq regime
    • Author(s): Heifetz, E.; Mak, J.
    • Source: Physics of Fluids, v. 27, (8), article number 086601
    • Year: 2015


29. Interacting vorticity waves as an instability mechanism for magnetohydrodynamic shear instabilities
    • Author(s): Heifetz, E.; Mak, J.; Nycander, J.; Umurhan, O. M.
    • Source: Journal of Fluid Mechanics, v. 767, p. 199-225
    • Year: 2015


30. Linear stability analysis for plane-Poiseuille flow of an elastoviscoplastic fluid with internal microstructure for large Reynolds numbers
    • Author(s): Moyers-Gonzalez, Miguel; Burghelea, Teodor I.; Mak, Julian
    • Source: Journal of Non-Newtonian Fluid Mechanics, v. 166, (9-10), p. 515-531
    • Year: 2011

  Conference paper

1. GEOMETRIC: Geometry and energetics of ocean mesoscale eddies and their representation in climate models
   • Author(s): Munday, David R.; Bachman, Scott D.; Maddison, James R.; Marshall, David P.; Mak, Julian
   • Source: Paper presented at US CLIVAR Variations, p. 17-22
   • Year: 2020


2. Magnetohydrodynamic shear instabilities arising from interacting vorticity waves
   • Author(s): Heifetz, E.; Mak, J.
   • Source: WIT Transactions on Engineering Sciences / edited by Brebbia Carlos A.; Hernandez S.; Rahman M.. WITPress, 2014, p. 371-380
   • Year: 2014