Dr Yueng-Djern Lenn

Darlithydd

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. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd

    Can Drake Passage Observations Match Ekman's Classic Theory?

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

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  3. Cyhoeddwyd

    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 Ion 2019, Yn : Journal of Physical Oceanography. 49, 1, t. 227-246

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  4. Cyhoeddwyd

    Improving estimates of the Antarctic circumpolar current streamlines in Drake Passage.

    Lenn, Y. D., Chereskin, T. K. & Sprintall, J., 1 Mai 2008, Yn : Journal of Physical Oceanography. 38, 5, t. 1000-1010

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  5. Cyhoeddwyd

    Intermittent intense turbulent mixing under ice in the Laptev Sea continental shelf.

    Lenn, Y., Rippeth, T. P., Old, C., Bacon, S., Polyakov, I., Ivanov, V. & Holemann, J., 1 Maw 2011, Yn : Journal of Physical Oceanography. 41, 3, t. 531-547

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  6. Cyhoeddwyd

    Kara Sea freshwater transport through Vilkitsky Strait: Variability, forcing, and further pathways toward the western Arctic Ocean from a model and observations

    Janout, M. A., Aksenov, Y., Holemann, J. A., Rabe, B., Schauer, U., Polyakov, I. V., Bacon, S., Coward, A. C., Karcher, M., Lenn, Y., Kassens, H. & Timokhov, L., 18 Gorff 2015, Yn : Journal of Geophysical Research: Oceans. 120, 7, t. 4925-4944

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  7. Cyhoeddwyd

    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 Ion 2007, Yn : Journal of Marine Research. 65, 1, t. 27 58 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  8. Cyhoeddwyd

    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 Ion 2012, Yn : Journal of Physical Oceanography. 42, 1, t. 95-109

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  9. Cyhoeddwyd

    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 Gorff 2011, Yn : Journal of Physical Oceanography. 41, 7, t. 1385-1407

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  10. Cyhoeddwyd

    Observations of Ekman currents in the southern ocean.

    Lenn, Y. D. & Chereskin, T. K., 1 Maw 2009, Yn : Journal of Physical Oceanography. 39, 3, t. 768-779

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  11. Cyhoeddwyd

    Observations of a diapycnal shortcut to adiabatic upwelling of Antarctic Circumpolar Deep Water

    Silvester, J. M., Lenn, Y. D., Polton, J. A., Rippeth, T. P. & Maqueda, M. M., 25 Tach 2014, Yn : Geophysical Research Letters. 41, 22, t. 7950-7956

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  12. Cyhoeddwyd

    Observed atlantification of the Barents Sea causes the Polar Front to limit the expansion of winter sea ice

    Barton, B., Lenn, Y-D. & Lique, C., 15 Awst 2018, Yn : Journal of Physical Oceanography.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  13. Cyhoeddwyd

    On the Future of Argo: A Global, Full-Depth, Multi-Disciplinary Array

    Roemmich, D., Alford, M. H., Claustre, H., Johnson, K., King, B., Moum, J., Oke, P., Owens, W. B., Pouliquen, S., Purkey, S., Scanderbeg, M., Suga, T., Wijffels, S., Zilberman, N., Bakker, D., Baringer, M., Belbeoch, M., Bittig, H. C., Boss, E., Calil, P., Carse, F., Carval, T., Chai, F., Conchubhair, D. Ó., d’Ortenzio, F., Dall’Olmo, G., Desbruyeres, D., Fennel, K., Fer, I., Ferrari, R., Forget, G., Freeland, H., Fujiki, T., Gehlen, M., Greenan, B., Hallberg, R., Hibiya, T., Hosoda, S., Jayne, S., Jochum, M., Johnson, G. C., Kang, K., Kolodziejczyk, N., Körtzinger, A., Traon, P-Y. L., Lenn, Y-D., Maze, G., Mork, K. A., Morris, T., Nagai, T., Nash, J., Garabato, A. N., Olsen, A., Pattabhi, R. R., Prakash, S., Riser, S., Schmechtig, C., Schmid, C., Shroyer, E., Sterl, A., Sutton, P., Talley, L., Tanhua, T., Thierry, V., Thomalla, S., Toole, J., Troisi, A., Trull, T. W., Turton, J., Velez-Belchi, P. J., Walczowski, W., Wang, H., Wanninkhof, R., Waterhouse, A. F., Waterman, S., Watson, A., Wilson, C., Wong, A. P. S., Xu, J. & Yasuda, I., 2 Awst 2019, Yn : Frontiers in Marine Science. 6, 439

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  14. Cyhoeddwyd

    Semidiurnal Tides on the Laptev Sea Shelf with Implications for Shear and Vertical Mixing

    Janout, M. A. & Lenn, Y. D., 8 Ion 2014, Yn : Journal of Physical Oceanography. 44, 1, t. 202-219

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  15. Cyhoeddwyd

    Shear at the Base of the Oceanic Mixed Layer Generated by Wind Shear Alignment

    Brannigan, L., Lenn, Y. D., Rippeth, T. P., McDonough, E., Chereskin, T. K. & Sprintall, J., 1 Awst 2013, Yn : Journal of Physical Oceanography. 43, 8, t. 1798-1810

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  16. Cyhoeddwyd

    Tide-mediated warming of Arctic halocline by Atlantic heat fluxes over rough topography

    Rippeth, T. P., Lincoln, B. J., Lenn, Y. D., Green, J. A., Sundfjord, A. & Bacon, S., Maw 2015, Yn : Nature Geoscience. 8, 3, t. 191-194

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  17. Cyhoeddwyd

    Vertical mixing at intermediate depths in the Arctic boundary current.

    Lenn, Y. D., Wiles, P. J., Torres-Valdes, S., Abrahamsen, E. P., Rippeth, T. P., Simpson, J. H., Bacon, S., Laxon, S. W., Polyakov, I., Ivanov, V. & Kirillov, S., 3 Maw 2009, Yn : Geophysical Research Letters. 36, t. L05601

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  18. Cyhoeddwyd

    Water mass properties derived from satellite observations in the Barents Sea

    Barton, B., Lique, C. & Lenn, Y-D., Awst 2020, Yn : Journal of Geophysical Research: Oceans. 125, 8, e2019JC015449.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  19. Cyhoeddwyd

    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 Medi 2016, Yn : Geophysical Research Letters. 43, 18, t. 9749-9756

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  20. Cyfraniad i Gynhadledd › Ymchwil › Adolygwyd gan gymheiriaid
  21. Cyhoeddwyd

    The Increasing Prevalence of High Frequency Internal Waves in an Arctic Ocean With Declining Sea Ice Cover

    Rippeth, T., Vlasenko, V., Stashchuk, N., Koslov, I., Scannell, B., Green, M., Lincoln, B. & Lenn, Y-D., 11 Tach 2019, ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, OMAE2019-96621

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadledd