Dr. Rebecca Hummels

Ocean Circulation and Climate Dynamics

Physical Oceanography

Topic 2: Ocean and Cryosphere in Climate

 

Scientific Focus

Observing ocean variability/climate variability in the tropical Atlantic on both large and small scales: 

⇒ Strength and variability of the (South Atlantic) MOC 

⇒ Circulation systems of the western boundary currents

⇒ Mixing processes
  

Education

2001-2004	Pre-diploma in physical oceanography at the Christian-Albrechts University of Kiel
2004-2007	Diploma in physical oceanography at the Christian-Albrechts University of Kiel, including a 6-month stay abroad at IFREMER in Brest, France Diploma: magma cum laude
2007-2012	PhD student in physical oceanography at the Institute of Oceanography at the University of Kiel, including parental leave between 03/2009-01/2010, Advisor: Dr. Marcus Dengler Doctoral thesis: magna cum laude
since 2012	Postdoctoral researcher at GEOMAR Helmholtz Centre for Ocean Research Kiel, including parental leave between 03/2012-03/2013
since 2018	Research Sientist at GEOMAR Helmholtz Centre for Ocean Research Kiel, including parental leave between 10/2019-05/2020

Projects

• BMBF Project RACE (2013 – 2015)
   
• BMBF Project RACE II (2015 – 2018) as Co-PI
   
• BMBF RACE –North Atlantic Synthesis (2019 - 2020) as Co-PI
   
• EU Horizon2020 Triatlas (2021 - 2023)
   
• EU ObsSea4Clim (2024)
   
• ESA Upperdyn (2025-2026)
    

Committees

• since 2016 Member of SAMOC (South Atlantic MOC) Science Teams

• since 2016 Member of DFG Kiel Exzellenz Clusters "The Future Ocean"

• since 2020 Member of SAMOC Executive Commitee

• since 2021 Member of CLIVAR AMOC Task Teams

   

Funded Cruise Proposals

• 08/2021 WB Circ Brazil, Proponent --> MSM117

• 05/2023 WARD Tropics, Proponent --> M207

• 03/2025 WAVES, Co-Proponent --> August 2026
    

Expeditions

09-10/2002     FS METEOR, Cruise M59/3, SFB 460, Subpolarer Nord Atlantik
08-09/2004     FS METEOR, Cruise M62/2, CLIVAR Tropischer Atlantik
07-08/2005     N/O THALASSA, Cruise WMA05, Subpolarer Nord Atlantik
02-03/2008     N/O L’ATALANTE, Cruise ATA_IFMGEOMAR/4, SFB 754, Tropischer Atlantik
04-05/2008     FS MARIA MERIAN, Cruise MSM08, SFB754, Tropischer Atlantik
04-05/2014     FS METEOR, Cruise M106, SFB754/RACE, Tropischer Atlantik
09-10/2015     FS METEOR, Cruise M119, SFB754/RACE, Tropischer Atlantik
01-02/2017     FS MARIA MERIAN, Cruise MSM60, ATLANTOS, Süd Atlantik
02-03/2018     FS METEOR, Cruise M145, SFB754, RACE II, Tropischer Atlantik
05-06/2023    FS MARIA S. MERIAN, Cruise MSM117, Triatlas, Tropischer Atlantik, Chief Scientist
01-02/2025    FS METEOR, Cruise M207, Tropischer Atlantik, Chief Scientist

Publications

Selected publications

Chidichimo, M. P., Perez, R. C., Speich, S., Kersalé, M., Sprintall, J., Dong, S., Lamont, T., Sato, O. T., Chereskin, T. K., Hummels, R. and Schmid, C. (2023) Energetic overturning flows, dynamic interocean exchanges, and ocean warming observed in the South Atlantic. Communications Earth & Environment, 4 (1). Art.Nr. 10. DOI 10.1038/s43247-022-00644-x

Hummels, R. , Dengler, M. , Rath, W. , Foltz, G. R., Schütte, F., Fischer, T.  and Brandt, P.  (2020) Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic.  Open Access Nature Communications, 11 (1). Art.Nr. 3829. DOI 10.1038/s41467-020-17601-x.

R. Kiko , A. Biastoch, P. Brandt, S. Cravatte, H. Hauss, R. Hummels, I. Kriest, F. Marin, A. M. P. McDonnell, A. Oschlies, M. Picheral, F. U. Schwarzkopf, A. M. Thurnherr, L. Stemmann (2017), Biological and physical influences on marine snowfall at the equator, Nature Geoscience, 10(11), 852ff

Hummels, R., P. Brandt, M. Dengler, J. Fischer, M. Araujo, D. Veleda, and J. V. Durgadoo (2015), Interannual to decadal changes in the western boundary circulation in the Atlantic at 11 degrees S, Geophysical Research Letters, 42(18), 7615-7622.

Hummels, R., M. Dengler, P. Brandt, and M. Schlundt (2014), Diapycnal heat flux and mixed layer heat budget within the Atlantic Cold Tongue, Climate Dynamics, 43(11), 3179-3199.

Hummels, R., M. Dengler, and B. Bourles (2013), Seasonal and regional variability of upper ocean diapycnal heat flux in the Atlantic cold tongue, Progress in Oceanography, 111, 52-74.
  

Book contributions

Hummels, R., Introduction into Physical Oceanography, Book Chapter in Handbook on Marine Environment Protection; Science, Impacts and Sustainable Management, (2018), Springer, ISBN 978-3-319-60154-0, DOI 10.1007/978-3-319-60156-4
 

All Publications in OceanRep:
Alle Publikationen
 

Published conference contributions:
Poster
Lecures