Professor Yueng-Djern Lenn

Professor in Physical Oceanography

Links

Contact info

311 Craig Mair 
School of Ocean Sciences
Bangor University, Wales
Menai Bridge LL59 5AB
UK
 
tel:+44 1248388658
e-mail:y.lenn AT bangor.ac.uk
 
I am a polar physical oceanographer and my interests lie in understanding the physical processes integral to ocean overturning that impact climate in the polar oceans. My Southern Ocean research has focused on Drake Passage eddy heat and momentum fluxes, the surface Ekman layer that constitute the upper limb of the overturning circulation, and diapycnal mixing driving water mass transformation in the thermocline at the Antarctic continental slope. My Arctic research focuses on water mass transformations occurring in the continental shelf seas and along the Arctic continental slope that link the Arctic to the global overturning circulation, most recently investigating the role of different mixing mechanisms (i.e. double diffusion and turbulent mixing drive by tides or winds) in fluxing heat and other properties from the warm Atlantic Water into overlying Arctic halocline and mixed layer.   
 
I am also the schools liason for the School of Ocean Sciences, co-ordinating most school visits to Ocean Sciences by schools as well as providing support for colleagues who visit schools.  Other outreach events I support include school STEM Careers Fairs and other Science Fairs.  These activities include events organised in partnership with STEMCymru and other similar organisations seeking to promote STEM in Wales and beyond. 
 
Research Area:
 
  1. Published

    Mixing in the Arctic Ocean

    Lenn, Y-D., Fer, I., Timmermans, M-L. & MacKinnon, J. A., 5 Oct 2021, Ocean Mixing: Drivers, Mechanisms, Impacts. Meredith, M. & Garabato, A. (eds.). Elsevier, p. 275-299

    Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

  2. Published

    Near-Surface Eddy Heat and Momentum Fluxes in the Antarctic Circumpolar Current in Drake Passag

    Lenn, Y-D., Chereskin, T., Sprintall, J. & McClean, J., 1 Jul 2011, In: Journal of Physical Oceanography. 41, 7, p. 1385-1407

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Mean Jets, mesoscale variability and eddy momentum fluxes in the surface layer of the Antarctic Circumpolar Current in Drake Passage

    Lenn, Y-D., Chereskin, T., Sprintall, J. & Firing, E., 1 Jan 2007, In: Journal of Marine Research. 65, 1, p. 27 58 p.

    Research output: Contribution to journalArticlepeer-review

  4. Published

    30-Second Oceans

    Lenn, Y-D. (ed.) & Green, M. (ed.), 21 Mar 2021, The Ivy Press. 160 p. (30-Second....)

    Research output: Book/ReportBook

  5. Published

    Introducing the Oceans

    Lenn, Y-D., Nehama, F. & Mavume, A., 13 Sept 2022, Journey Through Tides. Green, M. & Duarte, J. (eds.). Elsevier

    Research output: Chapter in Book/Report/Conference proceedingChapter

  6. Published

    Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean

    Lincoln, B., Rippeth, T., Lenn, Y-D., Timmermans, M-L., Willaims, W. & Bacon, S., 28 Sept 2016, In: Geophysical Research Letters. 43, 18, p. 9749-9756

    Research output: Contribution to journalArticlepeer-review

  7. Published

    A warm Jet in a cold ocean

    MacKinnon, J., Lenn, Y-D., Simmons, H. L., Hargrove, J., Thomson, J., Peacock, T., Alford, M. H., Barton, B. I., Boury, S., Brenner, S. D., Couto, N., Danielson, S. L., Fine, E. C., Graber, H. C., Guthrie, J., Hopkins, J. E., Jayne, S. R., Jeon, C., Klenz, T., Lee, C. M., Lucas, A. J., Lund, B., Mahaffey, C., Norman, L., Rainville, L., Smith, M. M., Thomas, L. N., Torres-Valdes, S. & Wood, K. R., 23 Apr 2021, In: Nature Communications. 12, 1, p. 2418

    Research output: Contribution to journalArticlepeer-review

  8. Published

    Can Drake Passage Observations Match Ekman's Classic Theory?

    Polton, J. A., Lenn, Y., Elipot, S., Chereskin, T. K. & Sprintall, J., 1 Aug 2013, In: Journal of Physical Oceanography. 43, 8, p. 1733-1740

    Research output: Contribution to journalArticlepeer-review

  9. Published

    Mooring-Based Observations of Double-Diffusive Staircases over the Laptev Sea Slope

    Polyakov, I. V., Pnyushkov, A. V., Rember, R., Ivanov, V. V., Lenn, Y. D., Padman, L. & Carmack, E. C., 1 Jan 2012, In: Journal of Physical Oceanography. 42, 1, p. 95-109

    Research output: Contribution to journalArticlepeer-review

  10. Published

    Eastern Arctic Ocean diapycnal heat fluxes through large double-diffusive steps

    Polyakov, I. V., Padman, L., Lenn, Y-D., Pnyushkov, A., Rember, R. & Ivanov, V. V., 4 Jan 2019, In: Journal of Physical Oceanography. 49, 1, p. 227-246

    Research output: Contribution to journalArticlepeer-review