Photo of Reiner Steinfeldt













Reiner Steinfeldt

Research Interests


     - spreading of North Atlantic Deep Water (time scales, variability)
     - determination of ages / transit time distributions from tracer data (CFCs)
     - estimation of the Atlantic Ocean inventory of anthropogenic carbon
     - calculation of vertical velocity in upwelling regions
       (Peru, Mauritania, equatorial Atlantic)

     _______________________________________________

    Tel: +49 (0)421 218-62151
    Fax: +49 (0)421 218-62165
    Email: rsteinf [at] physik.uni-bremen.de

 
| Curriculum Vitae | Projects | Publications | Scientific Cruises |
 
Curriculum Vitae
 
since 10/2001 research scientist (postdoc), Institute of Environmental Physics (IUP), University of Bremen
09/2001
Ph.D. in Physics, University of Bremen
05/1998 - 09/2001
research scientist, Institute of Environmental Physics (IUP), University of Bremen
05/1997 - 04/1998
scholarship holder, Institute of Environmental Physics (IUP), University of Bremen
01/1997
diploma in physics, University of Bremen
1990 - 1997
studies of physics, University of Hannover
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Projects
 
BMBF-Verbundvorhaben RACE II Regional Atlantic Circulation and Global Change
Project Management
BMBF-Verbundvorhaben SOPRAN III
Subproject 1.11
Surface Ocean Processes in the Anthropocene
Estimation of upwelling velocities from the helium isotope disequilibrium
CARBOCHANGE
Changes in carbon uptake and emissions by oceans in a changing climate

DFG-AtlanticTracer Changes ii the anthropogenic CO2 inventory and formation rates of deep and intermediate waters, derived from large scale transient tracer distributions in the Atlantic
BMBF-Verbundvorhaben SOPRAN II
Subproject 3.6
Surface Ocean Processes in the Anthropocene
Upwelling at the Mauritanian coast and at the equator
CARBOOCEAN IP
estimation of the marine carbon sources and sinks in the Atlantic and Southern Ocean at a time interval of -/+200 years from now


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Publications
 
Rhein, M., R. Steinfeldt, D. Kieke, I. Stendardo, and I. Yashayaev (2017), Ventilation variability of Labrador Sea Water and its impact on oxygen and anthropogenic carbon: a review, Phil. Trans. R. Soc. A, accepted, doi:10.1098/rsta.2016.0321.
de la Paz, M., M. I. Garcia-Ibanez, R. Steinfeldt, A. F. Rios, and F. F. Perez (2017), Ventilation versus biology: What is the controlling mechanism of nitrous oxide distribution in the North Atlantic? Global Biogeochem. Cycles, 31, 745-760, doi:10.1002/2016GB005507.
Lambelet, M., T. van de Flierdt, K. Crocket, M. Rehkämper, K. Kreissig, B. Coles, M. J. Rijkenberg, L. J. Gerringa, H. J. de Baar, and R. Steinfeldt (2016), Neodymium isotopic composition and concentration in the western North Atlantic Ocean: results from the GEOTRACES GA02 section, Geochim. Cosmochim Acta, 1-29, doi:10.1016/j.gca.2015.12.019.
Lauvset, S. K., R. M. Key, A. Olsen, S. van Heuven, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt, E. Jeansson, M. Ishii, F. F. Perez, T. Suzuki, and S. Watelet (2016), A new global interior ocean mapped climatology: the 1°x1° GLODAP version 2, Earth Syst. Sci.Data, 8, 325-340, doi:10.5194/essd-8-292-2016.
A. Olsen, A., R. M. Key, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt, E. Jeansson, M. Ishii, F. F. Perez, and T. Suzuki (2016), An internally consistent data product for the world ocean: the Global Ocean Data Analysis Project, version 2 (GLODAPv2), Earth Syst. Sci. Data, 8, 297-323, doi:10.5194/essd-8-297-2016.
Steinfeldt, R., J. Sültenfuß, M. Dengler, T. Fischer, and M. Rhein (2015), Coastal upwelling off Peru and Mauritania inferred from helium isotope disequilibrium, Biogeosci. Diss., 12, 11019-11059, doi:10.5194/bgd-12-11019-2015.
Schneider, L., D. Kieke, K. Jochumsen, E. Colbourne, I. Yashayaev, R. Steinfeldt, E. Varotsou, N. Serra, and M. Rhein (2015), Variability of Labrador Sea Water exported through Flemish Pass during 1993 - 2013, J. Geophys. Res., doi:10.1002/2015JC010939.
Heinze, C., S. Meyer, N. Goris, L. Anderson, R. Steinfeldt, N. Chang, C. Le Quere, and D. C. E. Bakker (2015), The ocean carbon sink - impacts, vulnerabilities, and challenges. Earth System Dynamics, 6, 327-358, doi:10.5194/esd-6-327-2015.
Fajar, N. M., E. F. Guallart, R. Steinfeldt, A. F. Rios, J. L. Pelegri, C. Pelejero, E. Calvo, and F. F. Perez (2015), Anthropogenic CO2 changes in the equatorial Atlantic Ocean. Prog. Oc., 134, 256-270, doi:10.1016/j.pocean.2015.02.004.
Rhein, M., D. Kieke, and R. Steinfeldt (2015), Advection of North Atlantic Deep Water from the Labrador Sea to the southern hemisphere, J. Geophys. Res., 120(4), 2471-2487, doi:10.1002/2014JC010605.
Stendardo, I., D. Kieke, M. Rhein, N. Gruber, and R. Steinfeldt (2015),Interannual to decadal oxygen variability in the mid-depth water masses of the eastern North Atlantic, Deep-Sea Res. I, 95(1), 85-98, doi:10.1016/j.dsr.2014.10.009.
Mertens, C., M. Rhein, M. Walter, C. W. Böning, E. Behrens, D. Kieke, R. Steinfeldt, and U. Stöber (2014), Circulation and transports in the Newfoundland Basin, western subpolar North Atlantic, J. Geophys. Res., 119, 7772-7793, doi:10.1002/2014JC010019.
Schneider, A.,T. Tanhua, W. Roether, and R. Steinfeldt (2014), Changes in ventilation of the Mediterranean Sea during the past 25 yr, Ocean Sci., 10(1), 1-6, doi:10.5194/os-10-1-2014.
Steinfeldt, R., T. Tanhua, J. L. Bullister, R. M. Key, M. Rhein, and J. Köhler (2010), Atlantic CFC data in CARINA. Earth System Science Data, 2, 1-15.
Tanhua, T., R. Steinfeldt, R. M. Key, P. Brown, N. Gruber, R. Wanninkhof, F. Perez, A. Körtzinger, A. Velo, U. Schuster, S. van Heuven, J. L. Bullister, I. Stenardo, M. Hoppema, A. Olsen, A. Kozyr, D. Pierrot, C. Schirnick, and D. W. R. Wallace (2010), Overview of the Atlantic Ocean CARINA data and salinity measurements. Earth System Science Data, 2, 17-34.
Steinfeldt, R., M. Rhein, J. L. Bullister und T. Tanhua (2009), Inventory changes in anthropogenic carbon from 1997-2003 in the Atlantic Ocean between 20°S and 65°N. Global Biogeochem. Cycles, 23, GB3010, doi:10.1029/2008GB003311.
Steinfeldt, R., M. Rhein, and M. Walter (2007), NADW transformation at the western boundary between 66°W/20°N and 10°N. Deep-Sea Res. I, 54(6), 835-855.
Rhein, M., D. Kieke, and R. Steinfeldt (2007), Ventilation of the Upper Labrador Sea Water, 2003-2005. Geophys. Res. Lett., 34, L06603, doi:10.1029/2006GL028540.
Rhein, M., K. Kirchner, C. Mertens, R. Steinfeldt, M. Walter, and U. Fleischmann-Wischnath (2005), Transport of South Atlantic Water through the passages south of Guadeloupe and across 16°N, 2000 - 2004. Deep Sea Res. I, 52(12), 2234-2249.
Rhein, M., M. Walter, C. Mertens, R. Steinfeldt, and D. Kieke (2004), The circulation of North Atlantic Deep Water at 16°N, 2000 - 2003. Geophys. Res. Lett., 31, L14305, doi:10.1029/2004GL019993.
Steinfeldt, R. and M. Rhein (2004), Spreading velocities and dilution of North Atlantic Deep Water in the tropical Atlantic based on CFC time series. J. Geophys. Res., 109(C3), C03046, doi:10.1029/2003JC002050.
Steinfeldt, R. (2004), Ages and spectra of Eastern Mediterranean Deep Water. J. Mar. Sys., 48, 67-81.
Steinfeldt, R. (2001), Realistische Modellierung der tiefreichenden Zirkulation des Mittelmeeres durch Simulation von Tracerverteilungen, Ph.D. Thesis, University of Bremen, 156 pp. (pdf, in german)
Steinfeldt, R. (1996), Untersuchung der Strukturen im Nachreflexionsgebiet konvergenter Stoßwellen, Diploma Thesis, University of Hannover, 90 pp.
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Participation in Scientific Cruises

RV Maria S. Merian, MSM-64 Subpolar North Atlantic May - Jun 2017 Southampton/UK - St. John's/Canada PI: D. Kieke
RV Maria S. Merian, MSM-53 Subpolar North Atlantic Mar - May 2016 Kiel/Germany - St. John's/Canada PI: D. Kieke
RV Maria S. Merian, MSM-43 Subpolar North Atlantic Mai - Juy 2015 St. John's/Canada - Nuuk/Greenland PI: C. Mertens
RV Maria S. Merian, MSM-38 Subpolar North Atlntic May - Jun 2014 Cadiz/Spain - St. John's/Canada PI: D. Kieke
RV Maria S. Merian, MSM-28 Subpolar North Atlantic May - Jun 2013 St. John's/Canada - Tromsoe/Norway PI: D. Kieke
RV Maria S. Merian, MSM-21/2 Subpolar North Atlantic Jun - Jul 2012 Reykjavik/Iceland - Nuuk/Greenland PI: D. Kieke
RV Meteor, M85/1 Subpolar North Atlantic Jun - Aug 2011 Brest/France - St. John's/Canada PI: D. Kieke
RV Meteor, M82/2 Subpolar North Atlantic Aug - Sep 2010 St. John's/Canada - Ponta Delgada/Azores PI: M. Rhein
RV Maria S. Merian, MSM-12/3 Subpolar North Atlantic Jul - Aug 2009 Reykjavik/Iceland - Bremerhaven/Germany PI: M. Rhein
RV Thalassa, SUBPOLAR-08 Subpolar North Atlantic Aug - Sep 2008 St. John's/Canada - Brest/France PI: D. Kieke
RV Maria S. Merian, MSM 09/1 Subpolar North Aatlantic Jul - Aug 2008 Bremen/Germany - St. John's/Canada PI: M. Rhein
RV Pelagia, 64PE278 Subpolar North Atlantic Oct - Nov 2007 Galway/Ireland - Canical/Portugal PI: D. Kieke
RV Maria S. Merian, MSM 05/1 Subpolar North Atlantic Apr - May 2007 Las Palmas/Spain - St. John's/Canada PI: M. Rhein
RV Poseidon, P341 Central North Atlantic Jul - Aug 2006 Lisbon/Portugal - Vigo/Spain PI: M. Rhein
RV Meteor, M66/1 Tropical Atlantic Aug - Sep 2005 Las Palmas/Spain - Willemstad/Curacao PI: M. Rhein
RV Thalassa, SUBPOLAR Subpolar North Atlantic Jun - Jul 2005 Brest/France - St. John's/Canada PI: M. Rhein
RV Meteor, M62/1b Tropical Atlantic Jul - Aug 2004 Fort de France/Martinique - Fortaleza/Brazil PI: M. Rhein
RV Meteor, M62/1a Subtropical Atlantic Jul 2004 Ponta Delgada/Azores - Fort de France/Martinique PI: R. Steinfeldt
RV Meteor, M59/2 Subpolar North Atlantic Jul - Aug 2003 Reykjavik/Iceland - St. John's/Canada PI: M. Rhein
RV Sonne, S171 Tropical Atlantic Mai - Jun 2003 Recife/Brazil - Point a Pitre/Guadeloupe PI: M. Rhein
RV L'Atalante, CARIBINPIOW Tropical Atlantic Apr 2003 Fort de France/Martinique - Fort de France/Martinique PI: M. Rhein
RV Meteor, M53/3 Tropical Atlantic Jun - Jul 2002 Recife/Brazil - Pont a Pitre/Guadeloupe PI: M. Rhein
RV Meteor, M50/4 eastern North Atlantic Jul - Aug 2001 Reykjavik/Iceland - Rendsburg/Germany PI: W. Zenk
RV Aegaeo, Aegaeo eastern Mediterranean Oct - Nov 1998 Piraeus/Greece - Piraeus/Greece PI: A. Theocharis
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