Professor Yueng-Djern Lenn

Athro

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. Cyhoeddwyd

    Introducing the Oceans

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

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  2. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  3. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    Mixing in the Arctic Ocean

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

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid

  5. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  6. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  7. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  8. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  9. 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 gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    On the Along-Slope Heat Loss of the Boundary Current in the Eastern Arctic Ocean

    Schulz, K., Janout, M. A., Lenn, Y-D., Castillo, E. R., Polyakov, I., Mohrholz, V., Tippenhauer, S., Reeve, K., Holemann, J., Rabe, B. & Vredenborg, M., Chwef 2021, Yn: Journal of Geophysical Research: Oceans. 126, 2, e2020JC016375.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid