Dr Yueng-Djern Lenn
Senior Lecturer in Physical Oceanography
Qualifications
- PhD: Observations of Antarctic Circumpolar Current Dynamics and Small-scale variability near the Antarctic peninsula
Scripps Institution of Oceanography, La Jolla, 2006 - MSc: Medical Radiation Physics
University College London, 1998 - MA: EXPERIMENTAL AND THEORETICAL PHYSICS
Cambridge University, 1997
Teaching and Supervision
Current Phd Students: Ben Barton, Universite de Bretagne Occidentale
Current modules:
ONS1001: Environmental Data & Analysis
DXX1005: Earth Systems & Processes
OSX1005: Introducing the Oceans
OSX2005: Earth and Ocean Observation
OSX2006: TIdes, Waves & Sampling
OSX3002: Marine Ecosystems & Processes
OSX4010: Key Concepts & Techniques
OSX4012: Practical Oceanography
OSX4015: Climate & Climate Change
OSX4408: Field and Lab Oceanography
Postgraduate Project Opportunities
Publications
2019
- PublishedThe 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 Nov 2019, ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, OMAE2019-96621
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution - PublishedOn 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 Aug 2019, In : Frontiers in Marine Science. 6, 439
Research output: Contribution to journal › Article - PublishedEastern 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 journal › Article
2018
- PublishedObserved 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 Aug 2018, In : Journal of Physical Oceanography.
Research output: Contribution to journal › Article
2016
- PublishedWind-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 Sep 2016, In : Geophysical Research Letters. 43, 18, p. 9749-9756
Research output: Contribution to journal › Article
2015
- PublishedKara 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 Jul 2015, In : Journal of Geophysical Research: Oceans. 120, 7, p. 4925-4944
Research output: Contribution to journal › Article - PublishedTide-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., Mar 2015, In : Nature Geoscience. 8, 3, p. 191-194
Research output: Contribution to journal › Article
2014
- PublishedObservations 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 Nov 2014, In : Geophysical Research Letters. 41, 22, p. 7950-7956
Research output: Contribution to journal › Article - PublishedSemidiurnal Tides on the Laptev Sea Shelf with Implications for Shear and Vertical Mixing
Janout, M. A. & Lenn, Y. D., 8 Jan 2014, In : Journal of Physical Oceanography. 44, 1, p. 202-219
Research output: Contribution to journal › Article
2013
- PublishedCan 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 journal › Article - PublishedShear 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 Aug 2013, In : Journal of Physical Oceanography. 43, 8, p. 1798-1810
Research output: Contribution to journal › Article
2012
- PublishedMooring-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 journal › Article
2011
- PublishedIntermittent 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 Mar 2011, In : Journal of Physical Oceanography. 41, 3, p. 531-547
Research output: Contribution to journal › Article
2009
- PublishedVertical 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 Mar 2009, In : Geophysical Research Letters. 36, p. L05601
Research output: Contribution to journal › Article - PublishedObservations of Ekman currents in the southern ocean.
Lenn, Y. D. & Chereskin, T. K., 1 Mar 2009, In : Journal of Physical Oceanography. 39, 3, p. 768-779
Research output: Contribution to journal › Article
2008
- PublishedImproving estimates of the Antarctic circumpolar current streamlines in Drake Passage.
Lenn, Y. D., Chereskin, T. K. & Sprintall, J., 1 May 2008, In : Journal of Physical Oceanography. 38, 5, p. 1000-1010
Research output: Contribution to journal › Article
Activities
2019
- Arctic Mixing Workshop
16 Oct 2019 – 18 Oct 2019
Activity: Participation in workshop, seminar, course (Speaker)
Projects
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Primary productivity driven by escalating nutrient fluxes?
01/07/2018 – 31/07/2021 (Active)
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IIGLOOS: Interactions at the interface of glaciology, oceanography and sea ice
01/05/2016 – 01/08/2017 (Finished)
-
01/09/2010 – 05/09/2016 (Finished)
Other Grants and Projects
2018-2021 NERC Changing Arctic Ocean: Primary productivity driven by escalating Arctic nutrient fluxes? (Lead Principle Investigator, Lenn)
2010-2015 NERC Postdoctoral Fellowship Principle Investigator
2011-2016 TEA-COSI:The Environment of the Arctic: Climate, Ocean and Sea-Ice UK NERC Consortium: Including Lenn (Project Partner, Bangor.)
2012-2015 Upper ocean heat flux in the Eurasian Basin: Oceanic thermodynamic forcing contributing to Arctic ice loss. USA National Science Foundation grant including Lenn (Project Partner, Bangor)