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Oliver Huhn

Oliver Huhn
Oliver Huhn
  • Tel: +49 (0)421 218-62155
  • Fax: +49 (0)421 218-62165
  • Email: ohuhn [at] uni-bremen.de

Research Interests

The evolution of the (polar) oceans under changing climate conditions / global warming
Application of oceanic tracer measurements (helium, neon, CFCs, SF6)

  • Arctic and Antarctic Oceanopgraphy
  • Water mass formation and evolution
  • Ocean – shelf ice (glacier) interaction
  • Submarine melting of Antarctic and Arctic ice shelves
  • Noble gas methods (helium He, neon Ne, Optimum Multi Parameter (OMP) analysis)
  • Transient tracer methods (CFCs, SF6, measurement techniques, tracer ages, Transit Time Distribution (TTD) method)
  • Anthropogenic carbon in the ocean
  • Field work (ship expeditions in polar and sub-polar oceans)
  • Teaching (supervision of Bachelors, Masters, PhDs)
Curriculum Vitae  
2017 - present University of Bremen, IUP - Oceanography
2016 - 2017 Alfred-Wegener Institute - Section Climate Research
2014 - 2016 University of Bremen, IUP - Oceanography
2013 - 2014 Alfred-Wegener Institute - Section Climate Research
1998 - 2013 University of Bremen, IUP - Oceanography
1998 - 2004 PhD at the University of Bremen, IUP - Oceanography
"Transfer von Nordatlantischem Tiefenwasser durch den Südatlantik mit Tracer-Verteilungen und Transitzeit-Verteilungen"
1998 diploma in physics, University of Bremen, Thesis: "nterpretation von FCKW-Verteilungen und Altersverteilungen von Wassermassen"
1989 - 1998 studies of physics, University of Bremen
Project work  
DFG Priority Program (SPP 1889): Regional Sea Level Change and Society Estimates of basal melt water from Greenland: a driver for sea level changes

Mass loss from the Greenland Ice Sheet increased significantly over the past two decades. Besides the growing influence on sea level rise, the pathways and the amount of melt water imported into the interior of the ocean could have crucial consequences for the ventilation and formation of deep water and, hence, the strength of the climate-relevant Atlantic meridional overturning circulation and, hereafter, the local sea level.

The main result of the first phase was, that for the first time, submarine melt water from Greenland was unambiguously identified outside of fjords. Melt water is highest in the upper 300m confined to the Greenland and Canadian slope and shelf. The strong dilution of melt water in the upper ocean and it’s relatively small percentages indicate that melt water is not a main player for deep water formation yet. The mechanism leading to the episodic occurrence of melt water in the deep water masses is uncertain. It could herald episodic East Greenland Current spill jets events that contains melt water.

Using oceanic helium and neon observations in a far larger data set, which is available since 2018, we want to investigate the melt water distribution near Greenland marine terminating glaciers, in the East Greenland Current, in the Labrador and in the Irminger Sea and in the source regions of the East Greenland Current spill jets. Are there more events in the newer data sets? How much melt water needs to be present on which key locations to significantly influence formation and ventilation of the relevant water masses.
BmBF Project: Greenland - Ice Sheet/Ocean Interaction (GROCE) Estimate of submarine meltwater in northeast Greenland: From marine terminating glaciers along the boundary current into the Nordic Seas

Over the past decades the Greenland Ice Sheet has faced accelerated melting under warming climate conditions. The contributing processes involve surface melting, iceberg calving, and submarine melting through the contact of warming water with marine terminating glaciers. At the glacier front or even inside the cavity of floating glacier tongues, the heat of warm and saline Atlantic Water melts the floating ice shelf at its base. Besides the contribution of this submarine meltwater to sea level rise, this additional fresh water may alter the climate relevant ocean circulation.

Submarine meltwater can hardly be identified by its salinity far from the source regions. Therefore, we use own measurements of low soluble noble gases (helium He, and neon Ne) to identify, quantify and trace this freshwater component.

The main aims of this Project are:

Calculation of submarine meltwater fractions from Fram Strait downstream towards the Irminger Sea on the Greenland shelf, on the continental slope, and in the deep ocean, based on first systematically obtained He and Ne observations in this area.
Comparison of our He and Ne data with historic data to detect possible changes and estimate the order of meltwater discharge into the ocean interior.

Which role does the submarine meltwater play in the ocean circulation in the Nordic Seas and in the Irminger Sea?

Which additional sources for freshwater can be identified, and which role do they play?
DFG Schwerpunktprogramm SPP 1158:"Antarktisforschung mit vergleichenden Untersuchungen in arktischen Eisgebieten"  
Forum for Research into Ice Shelf Studies (FRISP)  
Publications
Janout, M. A., H.H. Hellmer, T. Hattermann, O. Huhn, J. Sültenfuss, S. Østerhus, et al. (2021), FRIS revisited in 2018: On the circulation and
water masses at the Filchner and Ronne ice shelves in the southern Weddell Sea, Journal of Geophysical Research: Oceans, 126, e2021JC017269, doi:10.1029/2021JC01726.
Huhn, O., M. Rhein, T. Kanzow, J. Schaffer, and J. Sültenfuß (2021), Submarine meltwater from Nioghalvfjerdsbræ (79 North Glacier), Northeast Greenland. Journal of Geophysical Research: Oceans, 126, e2021JC017224, doi:10.1029/2021JC017224.
Kieke, D, R. Arruda Monteiro da Silva, K. Bulsiewicz, K. Azetsu-Scott, N. Binnemann, A. Buinyi, C. Feucher, O. Huhn, M. Köllner, H. Nowitzki, J. Oelsmann, A. Röhler, N. Rohlfs, A. Schneehorst, R. Steinfeldt, H.-H. Uhde, K. Wiegand, and F. Wischnewski (2019), Subpolar Gyre Variability, Cruise No. MSM73, April 06 - May 22, 2018, Cadiz (Spain) - St. John's (Canada). MARIA S. MERIAN-Berichte, doi:10.2312/cr_msm73.
Vernet, M., W. Geibert, M. Hoppema, P. J. Brown, C. Haas, H.H. Hellmer, W. Jokat, L. Jullion, D.C.E. Bakker, J.A. Brearley, P. Croot, T. Hattermann, J. Hauck, C.‐D. Hillenbrand, C.J.M. Hoppe, O. Huhn, B.P. Koch, O.J. Lechtenfeld, M.P. Meredith, A.C. Naveira Garabato, E.‐M. Nöthig, I. Peeken, M.M. Rutgers van der Loeff, S. Schmidtko, M. Schröder, V.H. Strass, S. Torres‐Valdés, and A. Verdy (2019), The Weddell Gyre, Southern Ocean: Present Knowledge and Future Challenges. Reviews of Geophysics, 57, doi:10.1029/2018RG000604.
Huhn, O., T. Hattermann, P.E.D. Davis, E. Dunker, H.H. Hellmer, K.W. Nicholls, S. Østerhus, M. Rhein, M. Schröder and, J. Sültenfuß (2018), Basal melt and freezing rates from first noble gas samples beneath an ice shelf, Geophys. Res. Lett., 45, doi:10.1029/2018GL079706.
Rhein, M., R. Steinfeldt, O. Huhn, J. Sültenfuß, and T. Breckenfelder (2018), Greenland subarine melt water observed in the Labrador and Irminger Sea, Geophys. Res. Lett., 45, 10.570-10.578, doi:10.1029/2018GL079110.
Rodrigo, C., J.M. Blamey, O. Huhn, and C. Provost (2018), Is there an active hydrothermal flux from the Orca Seamount in the Bransfield Strait, Antarctica?, Andean Geology, 45, 3, 344-356, doi:10.5027/andgeoV45n3-3086.
Rhein, M., V. Strass, O. Huhn, ... and Christoph Völker (2017), Polare Ozeane. In: Heinemann, G., M. Braun, T. Brey, D. Damaske, M. Melles, M. Rhein, and S. Willmes (eds.), Polarforschungsagenda 2030 - Status und Perspektiven der deutschen Polarforschung. Statusbericht des Deutschen Nationalkomitees SCAR/IASC der DFG, 160 S., ISBN 978-3-00-057243-2. Verlag der Universität Trier, download via the DFG web pages (available in German).
Rutgers van der Loeff, M., C. Venchiarutti, I. Stimac, J. van Ooijen, O. Huhn, G. Rohardt, and V. Strass (2016), Meridional circulation across the Antarctic Circumpolar Current serves as a double 231Pa and 230Th trap, Earth Planet. Sci. Lett., 455, 73-84, doi:10.1016/j.epsl.2016.07.027.
Hellmer, H., M. Rhein, G. Heinemann, J. Abalichin, W. Abouchami, O. Baars, U. Cubasch, K. Dethloff, L. Ebner, E. Fahrbach, M. Frank, G. Gollan, R. Greatbach, J. Grieger, V. Gryanik, M. Gryschka, J. Hauck, M. Hoppema, O. Huhn, T. Kanzow, B. Koch, G. König-Langlo, U. Langematz, G. Leckebusch, C. Lüpkes, S. Paul, A. Rinke, B. Rost, M. Rutgers van der Loeff, M. Schröder, G. Seckmeyer, T. Stichel, V. Strass, R. Timmermann, S. Trimborn, U. Ulbrich, C. Venchiarutti, U. Wacker, S. Willmes, D. Wolf-Gladrow (2016), Meteorology and oceanography of the Atlantic sector of the Southern Ocean - A review of recent achievements. Ocean Dynamics, 66(11), 1379-1414, doi:10.1007/s10236-016-0988-1.
Huneke, W. G. C., O. Huhn und M. Schröder (2016), Water masses in the Bransfield Strait and adjacent seas, austral summer 2013. Polar Biology, 39(5), 789-798, doi:10.1007/s00300-016-1936-8.
Ryan, S., M. Schröder, O. Huhn und R. Timmermann (2016), On the warm inflow at the eastern boundary of the Weddell Gyre, Deep-Sea Res. I, 107(1), 70-81, doi:10.1016/j.dsr.2015.11.002.
Dorschel, B., J. Gutt, O. Huhn, A. Bracher, M. Huntemann, W. Huneke, C. Gebhardt, M. Schröder und H. Herr (2016), Environmental information for a marine ecosystem research approach for the northern Antarctic Peninsula (RV Polarstern expedition PS81, ANT-XXIX/3). Polar Biology, 39(5), 765-787, doi:10.1007/s00300-015-1861-2.
van Caspel, M., M. Schröder, O. Huhn, and H.H. Hellmer (2015), Precursors of Antarctic Bottom Water formed on the continental shelf off Larsen Ice Shelf, Deep-Sea Res. I, 99(5), 1-9, doi:10.1016/j.dsr.2015.01.004.
Huhn, O., and M. Rhein (2015) Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984–2011. IUP Research Highlights 2013/2014. Univ. Bremen, Germany.
Huhn, O., M. Rhein, M. Hoppema, and S. van Heuven (2013), Decline of deep and bottom water ventilation and slowing down of anthropogenic carbon storage in the Weddell Sea, 1984-2011. Deep-Sea Res. I, 76, 66-84, doi:10.1016/j.dsr.2013.01.005.
Huhn, O., and Monika Rhein (2012), Spurensuche im Südpolarmeer; Edelgase und FCKW im Ozeanwasser zeigen bedeutung für das globale Klima. In Impulse aus der Forschung, 2/2012, Universität Bremen. ISSN: 0179-9495.
Middag, R., H. J. W. de Baar, P. Laan, and O. Huhn (2012), The effects of continental margins and water mass circulation on the distribution of dissolved aluminium and manganese in Drake Passage. J. Geophys. Res, 117, C01019, doi:10.1029/2011JC007434.
Hellmer, H.H., O. Huhn, D. Gomis, and R. Timmermann (2011), On the freshening of the northwestern Weddell Sea continental shelf. Ocean Science, 7(3), 305-316, doi:10.5194/os-7-305-2011.
Bluhm, K., P. Croot, O. Huhn, G. Rohardt, and K. Lochte (2011), Distribution of Iodide and Iodate in the Atlantic sector of the Southern Ocean during austral summer. Deep-Sea Res. II, 58(25-26), 2733-2748, doi:10.1016/j.dsr2.2011.02.002 .
Provost, C., A. Renault, N. Barre, N. Sennechael, V. Garcon, J. Sudre, and O. Huhn (2011), Two repeat crossings of Drake Passage in austral summer 2006: Short term variations and evidence for considerable ventilation of intermediate and deep waters. Deep-Sea Res. II, 58(25-26), 2555-2571, doi:10.1016/j.dsr2.2011.06.009.
Sudre, J., V. Garcon, C. Provost, N. Sennechael, O. Huhn, and M. Lacombe (2011), Multiparametric analysis of water masses across Drake Passage during ANT-XXIII/3. Deep-Sea Res. II, 58(25-26), 2591-2612.
van Heuven, S.M.A.C, M. Hoppema, O. Huhn, H.A. Slagter, and H J.W. de Baar (2011), Direct observation of increasing CO2 in the Weddell Gyre along the Prime Meridian during 1973-2008. Deep-Sea Res. II, 58(25-26), 2613-2635, doi:10.1016/j.dsr2.2011.08.007.
Huhn, O., W. Roether, and R. Steinfeldt (2008), Age spectra in North Atlantic Deep Water along the South American continental slope, 10 N - 30 S, based on tracer observations, Deep-Sea Res. I, 55(10), 1252-1276, doi:10.1016/j.dsr.2008.05.016.
Huhn, O., H.H. Hellmer, M. Rhein, W. Roether, C. Rodehacke, M. Schodlok, and M. Schröder (2008), Evidence of deep and bottom water formation in the western Weddell Sea. Deep-Sea Res. II, 55(8-9), 1098-1116, doi:10.1016/j.dsr2.2007.12.015.
Rodehacke, C.B., H.H. Hellmer, O. Huhn, and A. Beckmann (2007), Ocean/ice shelf interaction in the southern Weddell Sea: Results of a regional numerical helium/neon simulation. Ocean Dynamcs, 57(1), 1-11, doi:10.1007/s10236-006-0073-2.
Huhn, O. (2005) Transfer von Nordatlantischem Tiefenwasser durch den Südatlantik mit Tracer-Verteilungen und Transitzeit-Verteilungen. Dissertation, Universität Bremen, 173 pp (pdf, in German [2.632 KB] ).
Huhn, O., W. Roether, P. Beining, and H. Rose (2001), Validity limits of carbon tetrachloride as an ocean tracer. Deep-Sea Res. I, 48(9), 2025-2049, doi:10.1016/S0967-0637(01)00004-8.
Huhn, O. (1997), Interpretation von FCKW-Verteilungen und Altersverteilungen von Wassermassen, Diplomarbeit, Universität Bremen, 138 pp.
Talks (international)
Huhn, O., T. Hattermann, P.E.D. Davis, E. Dunker, H.H. Hellmer, S. Østerhus, M. Rhein, M. Schröder, J. Sültenfuß, K.W. Nicholls. Melting, re-freezing and subglacial runoff beneath Filchner-Ronne Ice Shelf from first noble gas measurements inside an ice shelf cavity. Eingeladener Vortrag im Berichtskolloquium des DFG Schwerpunktprogramm Antarktisforschung (SPP 1158), DGP Polartragung, Rostock, 28. March 2018.
Huhn, O., T. Hattermann, P.E.D. Davis, E. Dunker, H.H. Hellmer, S. Østerhus, M. Rhein, M. Schröder, J. Sültenfuß, K.W. Nicholls. Antarctic ice shelf melting observed by first noble gas measurements inside an ice shelf cavity. 2018 Ocean Science Meeting, Portland, USA, 11. – 16. 2. 2018
Huhn, O., J. Sültenfuß, M. Rhein, T. Hattermann, H.H. Hellmer, M. Schröder, T. Kanzow, E. Dunker (AWI), K. Nicholls. Worldwide first below-ice-shelf noble gas measurements to investigate basal melting of the Filchner-Ice-Shelf in Antarctica. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, 13.-17.3.2017, Bremen, Germany.
Huhn, O., M. Rhein, M. Schröder, T. Hattermann, H. H. Hellmer. Basal glacial melting in the Filchner Outflow System inferred from oceanic noble-gas observations. FISP Workshop, 6.-8. June 2016, Bergen, Norway
Huhn, O., M. Rhein, J. Sültenfuß, M. Schröder. Evidence for increased ice-shelf melting in the Weddell Sea inferred from oceanic noble-gas observations, 1990-2013. Eingeladener Vortrag imBerichtskolloquium des DFG Schwerpunktprogramm Antarktisforschung (SPP 1158), DGP Polartragung, München, 8. September 2015.
Huhn, O., M. Rhein, J. Sültenfuß, M. Schröder. Evidence for increased ice-shelf melting in the Weddell Sea inferred from oceanic noble-gas observations, 1990-2013. Basal ice-shelf melting in the Weddell Sea inferred from oceanic noble-gas observations. Frühjahrstagung der deutschen Physikalischen Gesellschaft, 26.3.2015, Heidelberg, Germany.
Huhn, O., M. Rhein, M. Schröder, A. Wisotzki, M. v. Caspel, M. Hoppema, 2014. Basal ice-shelf melting in the Weddell Sea infered from oceanic noble-gas observations. German-Japanese workshop on polar oceans. 30. September - 1. October 2014. Bremerhaven, Germany
Huhn, O., M. Rhein, M. Hoppema, and S. van Heuven, 2013. Slowing down of deep and bottom water ventilation and anthropogenic carbon storage in the Weddell Sea. IAHS-IAPSO-IASPEI Joint Assembly 2013, Göteborg
Buss, A., O. Huhn, J. Sültenfuß, and M. Rhein, 2013. Upwelling in the Weddell Sea inferred from helium isotope disequilibrium. IAHS-IAPSO-IASPEI Joint Assembly 2013 Göteborg
Rhein, M., O. Huhn, 2013. Changes in the Antarctic Bottom Water. 25th International Congress on Polar Research "Changing Polar Regions". Hamburg
Huhn, O., M. Rhein, M. Hoppema, 2012. Aging and slowing down of anthropogenic carbon uptake in deep and bottom water in the Weddell Sea, 1984-2011. Seminar des Fachbereichs Klimawissenschaften, AWI, Bremerhaven, Germany
Huhn, O., M. Rhein, M. Hoppema, 2012. Slowing down of deep and bottom water ventilation and anthropogenic carbon storage in the Weddell Sea. Weddell Workshop, Hanse-Wissenschaftskolleg (HWK), Delmenhorst
Huhn, O., M. Rhein, and K. Bulsiewicz, 2012. Early results from combined historic chlorofluorocarbon and first sulphur hexafluoride measurements in the Weddell Sea - variability of ventilation rates and anthropogenic carbon. EGU General Assembly 2012, Vienna, Austria
Provost, C., A. Renault, N. Barré, N. Sennéchael, V. Garçon, J. Sudre, O. Huhn, 2011. Two repeat crossings of Drake Passage in austral summer 2006: short term variations and evidence for considerable ventilation of intermediate and deep waters. EGU General Assembly 2011, Vienna, Austria
Huhn, O., M. Rhein, 2010. Deep and bottom water formation and anthropogenic carbon in the Atlantic sector of the Southern Ocean. DFG-Kolloquium, 24. Internationale Polartagung der DGP, Obergurgl, Austria
Hellmer, H. O. Huhn, R. Timmermann, and M. Schroeder, 2010. On the freshening of the northwestern Weddell Sea continental shelf. DFG-Kolloquium, 24. Internationale Polartagung der DGP, Obergurgl, Austria.
Hoppema, M., S. Van Heuven, J. Hauck, O. Huhn, C. Lo Monaco, 2009. CARINA Southern Ocean synthesis - Anthropogenic CO2 in the Weddell Sea, Decadal variations of the ocean´s carbon cycle: Synthesis and vulnerabilities. International Symposium at the SCF Monte Verita, 13-17 July 2009, Ascona, Switzerland.
Schröder, M., H. Hellmer, O. Huhn, 2009. The Structure of the Eastern Weddell Sea Warm Inflow. EGU General Assembly 2009, Vienna, Austria
Huhn, O., 2007. Tracer measurements (helium isotopes and CFCs) in Drake Passage, 2006. ANT XXIII/3 cruise workshop, LODYC, Paris, France
Huhn, O., M. Rhein, W. Roether, H. H. Hellmer, M. Schodlok, M. Schröder, and C. Rodehacke, 2007. Deep and bottom water formation in the western Weddell Sea - results from hydrographic and tracer.EGU General Assembly 2007, Vienna, Austria
Huhn, O., M. Rhein, 2006. Contributions of Ice Shelf Water to Weddell Sea Bottom Water formation from He + Ne measurements. ISPOL Post Cruise Workshop, Tverminne, Finnland
Steinfeldt, R., M. Rhein, and O. Huhn, 2006. CFC data and synthesis. CARBOOCEAN Workshop on Atlantic Carbon Data Synthesis Laugarvatn (Island)
Oliver Huhn, 2005. Der Ozean: den Meeresströmungen auf der Spur. WALLFEST der Stadt der Wissenschaft 2005, Bremen, Germany
Huhn, O., M. Rhein, W. Roether, B. Klein, M. Schröder, M. Schodlok, 2005. Tracer measurements in the Weddell Sea, Formation of Deep and Bottom Water. DFG-Kolloquium, 22. Internationale Polartagung der DGP, Jena, Germany
Huhn, O., W. Roether, 2004. Tracer-derived transit time distributions of North Atlantic Deep Water in the South Atlantic. EGU General Assembly, Nizza, France
Huhn, O., W. Roether, H. Rose, P. Beining, 2000. Decomposition of carbon tetrachloride in the ocean. EGS General Assembly,Nizza, France
Huhn, O., W. Roether, H. Rose, P. Beining, 2000. Abbau von CCl4im Ozean - Ratenbestimmung (und mögliche Mechanismen). DPG Frühjahrstagung, Bremen, Germany
Posters (international)
Huhn, O., M. Rhein, M. Schröder. Evidence for increased glacial meltwater input into the Weddell Sea from oceanic noble gas observations, 1990-2013. International Glaciological Society, Contemporary ice-sheet dynamics: ocean interaction, meltwater, & non-linear effects. 16-21 Aug. 2015, Cambridge, United Kingdom
Caspel, M. v., M. Schröder, O. Huhn, and H. Hellmer, 2014. Dense water production in the Larsen Ice Shelf region. EGU General Assambly 2014, 27.4.-2.5.2014, Vienna, Austria
Hoppema, M. , Van Heuven, S. M. A. C. , Jones, E. M. , Huhn, O. and de Baar, H. J. W., 2014. Increasing CO2 in the deep waters of the Weddell Gyre, Southern Ocean , CarboChange 3rd annual meeting, Reykjavik, Iceland, 7 April 2014 - 10 April 2014 .
Huhn, O., M. Rhein, M. Hoppema, and S. van Heuven, 2014. Reduced ventilation and carbon storage of Weddell Sea deep and bottom water. Ocean Science Meeting 2014, Honolulu, US.
Buß, A., O. Huhn, J. Sültenfuß, and M. Rhein, 2013. Upwelling in the Weddell Sea inferred from helium isotope disequilibrium. 25th International Congress on Polar Research "Changing Polar Regions". Hamburg
Buß, A., O. Huhn, J. Sültenfuß, and M. Rhein, 2012. Upwelling in the Atlantic sector of the Southern Ocean inferred from helium isotope disequilibrium. EGU General Assembly 2012, Vienna, Austria
Schneider, L., D. Kieke, M. Rhein, O. Huhn, R. Steinfeldt, and B. Klein, 2012. Formation of Antarctic Intermediate Water in the South Atlantic. Ocean Sciences Meeting 2012
Salt Lake City, USA
Huhn, O., M. Rhein, K. Bulsiewicz, G. Rohard, 2011. Early results from first sulphur hexafluoride measurements in the Weddell Sea. EGU General Assembly 2011, Vienna, Austria
Hellmer, H. H., O. Huhn, D. Gomis, R. Timmermann, M. Schröder, 2010. On the freshening of the northwestern Weddell Sea continental shelf. EGU General Assembly 2010, Vienna, Austria
Kieke, D., M. Rhein, O. Huhn, R. Steinfeldt, and B. Klein, 2011. Formation of Antarctic Intermediate Water in the South Atlantic. EGU General Assembly 2011, Vienna, Austria
Huhn, O., J. Hauck, M. Hoppema, M. Rhein, W. Roether, 2010. Anthropogenic carbon estimates in the Weddell Sea using an optimized CFC based transit time distribution approach. EGU General Assembly 2010, Vienna, Austria
Huhn, O., M. Hoppema, W. Roether, and M. Rhein, 2009. Transport of anthropogenic CO2 across the Prime Meridian in the Southern Ocean based on tracer observations. EGU General Assembly 2009, Vienna, Austria
Sudre, J., V. Garcon, C. Provost, N, Sennechael, O. Huhn, 2009. Multiparametric analysis of water masses across Drake Passage during austral summer 2006. EGU General Assembly 2009, Vienna, Austria
Gebler, M., O. Huhn, M. Rhein, 2009. Westward flow of Weddell Sea Bottom Water through Drake Passage. EGU General Assembly 2009, Vienna, Austria
Steinfeldt, R., M. Rhein, T. Tanhua, and O. Huhn, 2007. Inventory changes of anthropogenic carbon in the Atlantic between 20°S and 65°N. EGU General Assembly 2007, Vienna, Austria
Huhn, O., M. Rhein, B. Klein, M. Schröder, M. Schodlok, 2005. Tracer measurements in the western Weddell Sea: formation of Deep and Bottom Water and the contribution of Ice Shelf Water. EGU General Assembly, Vienna, Austria
Huhn, O., W. Roether, 2002. Age Distributions from Tracer Data in uNADW in the South Atlantic. WOCE and beyond, San Antonio, USA
Memberships
Deutsche Physikalische Gesellschaft – DPG
Deutsche Gesellschaft für Polarforschung – DGP
American Geophysical Union – AGU
Mitglied in der "Kommission zur Aufklärung wissenschaftlichen Fehlverhaltens"
der Universität Bremen
Scientific Cruises
FS Maria S. Merian (MSM85)     St. Johns – Longyearbyen  
FS Maria S. Merian (MSM83)     Las Palmas - St. Johns  
FS Maria S. Merian (MSM73)   April - May 2018 Cadiz - St. Johns  
FS-Polarstern (PS109)   Sept 2017 - Oct 2017 Tromsö - Bremerhaven  
FS-Polarstern (PS100)   July 2016 - Sept 2016 Tromsö - Tromsö  
FS-Polarstern (PS96)   Dec 2015 - Feb 2016 Kapstadt - Punta Arenas  
FS-Polarstern (ANT XXIX/9)   Dec 2013 - March 2014 Kapstadt - Kapstadt  
FS-Polarstern (ANT XXIX/3)   Jan-March 2013 Punta Arenas – Punta Arenas  
FS Polarstern, ANT XXVII/2 Weddellmeer Nov 2010-Feb 2011 Kapstadt/Südafrika - Punta Arenas/Chile PI FCKWs und Edelgase
BIO Hesperides, MOC2 (Austral) Südatlantik Feb-March 2010 Ushuaia/Argentinien - Kapstadt/Südafrika PI FCKWs und Edelgase
FS Polarstern, ANT XXV/4 (DRAKE II) Drakestraße March-Apr 2009 Punta Arenas/Chile - Punta Arenas/Chile PI FCKWs und Edelgase
FS Polarstern, ANT XXIV/3 Weddellmeer Feb-Apr 2008 Kapstadt/Südafrika - Punta Arenas/Chile PI FCKWs und Edelgase
FS Polarstern, ANT XXII/7 (WWOS) westl. Weddellmeer Aug-Oct 2006 Kapstadt/Südafrika - Kapstadt/Südafrika PI FCKWs und Edelgase
FS Polarstern, ANT XXIII/3 (DRAKE) Drakestraße Jan-Feb 2006 Punta Arenas/Chile - Punta Arenas/Chile PI FCKWs- und Edelgase
FS Polarstern, ANT XXII/2 (ISPOL) westl. Weddellmeer Oct 2004-Jan 2005 Kapstadt/Südafrika - Kapstadt/Südafrika PI FCKWs und Edelgase
FS Sonne, SO-171 tropischer Atlantik May-Jun 2003 Recife/Brasilien - Point a Pitre/Guadeloupe FCKWs
N/O Le Suroit Adria Sept 2002 Brindisi/Italien - Toulon/Frankreich Verankerungen
FS Meteor, M51/2 Mittelmeer Oct-Nov 2001 Malaga/Spanien - La Valetta/Malta FCKWs
FS Polarstern, ANT XVIII/3 (Eisenex) ACC Oct-Nov 2000 Kapstadt/Südafrika - Kapstadt/Südafrika PI Edelgase
FS James Clark Ross, Albatross Scotia-See March-May 1999 Falklandinseln - Falklandinseln PI Edelgase
FS Polarstern, ANT XV/4 (Dovetail) Weddellmeer March-May 1998 Punta Arenas/Chile - Kapstadt /Südafrika Edelgase