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Dr. Julia Hoffmann

 

Address:	Institute of Earth Sciences Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 234 D-69120 Heidelberg
Room:	202
Phone: Fax:	+49 (0)6221-54 8279 +49 (0)6221-54 5503
E-mail:	julia.hoffmann@geow.uni-heidelberg.de

 

 

 

 

 

 

 

 

 

 

 

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Research Profile:

• Land-ocean-interaction on the northern South American continent based on variations of riverine input into the Atlantic Ocean and its influence on ocean circulation (e.g. Ba/Ca-measurements on planktic surface dwelling foraminifera within the Orinoco, Amazon and Paraíba do Sul outflow areas)
• Reconstruction of ocean currents in the (sub)tropical Atlantic Ocean during glacial/interglacial changes in the late Pleistocene and Holocene (δ18O- and Mg/Ca-measurements on planktic and benthic foraminifera)
• Reconstructing hydrological changes in (sub)tropical South America with focus on the low-latitude expressions of high-latitude climate forcing (variability of ITCZ and SACZ in the late Pleistocene and Holocene)

 

Scientific Career and Education:

Since 01/2017	Postdoc, own funded DFG-Project, Institute of Earth Sciences, Heidelberg University
07/2016-12/2016	Postdoc, Institute of Earth Sciences (Heidelberg University)
03/2016-04/2016	Postdoc, Institute of Geosciences (Frankfurt University)
09/2012-11/2015	PhD-student, Institute of Geosciences (Frankfurt University)
04/2011-09/2012	Master Geosciences (Frankfurt University)
09/2010-04/2011	Master „Marine Geosciences“, GEOMAR (Kiel)
09/2007-09/2010	Bachelor Geosciences (Frankfurt University)

Publications:

(as of 06/2017)

under review:

• Hoffmann, J., Bahr, A., Schönfeld, J., Schmidt, M.W., Nürnberg, D., Batenburg, S.J., Voigt, S., under review. Low-latitude expressions of high-latitude forcing mechanisms during HS1 and YD: new insights into the timing and structure of the South American monsoon system.

 

2016:

• Bahr, A., Spadano Albuquerque, A.L., Ardenghi, N., Batenburg, S.J., Bayer, M., Catunda, M.C., Conforti, A., Dias, B., Díaz Ramos, R., Egger, L.M., Evers, F., Fischer, T., Hatsukano, K., Hennrich, B., Hoffmann, J., Jivcov, S., Kusch, S., Munz, P., Niedermeyer, E., Osborne, A., Raddatz, J., Raeke, A.W., Reissig, S., Sebastian, U., Taniguchi, N., Martins Venancio, I., Voigt, S., Wachholz, A., 2016. South American Hydrological Balance and Paleoceanography during the Late Pleistocene and Holocene (SAMBA) - Cruise No. M125 - March 21 - April 15, 2016 - Rio de Janeiro (Brazil) - Fortaleza (Brazil). METEOR-Berichte, M125, 1-47.

 

2014:

• Hoffmann, J., Bahr, A., Voigt, S. , Schönfeld, J., Nürnberg, D., Rethemeyer, J., 2014. Disentangling abrupt deglacial hydrological changes in northern South America: Insolation versus oceanic forcing; Geology, 42, 579-582.

 

2013:

• Bahr, A., Schönfeld, J., Hoffmann, J., Voigt, S., Aurahs, R., Kucera, M., Flögel, S., Jentzen, A., Gerdes, A., 2013. Comparison of Ba/Ca and δ¹⁸O_water as freshwater proxies: A multi-species core-top study on planktonic foraminifera from the vicinity of the Orinoco river mouth; Earth and Planetary Science Letters, 383, 45-57.
• Voigt, S., Jung, C., Friedrich, O., Frank, M., Teschner, C., Hoffmann, J., 2013. Tectonically restricted deep-ocean circulation at the end of the Cretaceous greenhouse; Earth and Planetary Science Letters, 98, 72-93.

 

2010:

• Van de Schootbrugge, B., Harazim, D., Sorichter, K., Oschmann, W., Fiebig, J., Püttmann, W., Peinl, M., Zanella, F., Teichert, B.M.A., Hoffmann, J., Stadnitskaia, A., Rosenthal, Y., 2010. The enigmatic ichnofossil Tisoa siphonalis and widespread authigenic seep carbonate formation during the Late Pliensbachian in Southern France; Biogeoscience, 7, 3123-3138.