Cooperation Professorship: Alfred-Wegener-Institut Bremerhaven

Our research focusses on the investigation and quantification of geochemical and bio-geochemical processes in the seabed and the use of marine sediments as archives for the reconstruction of past environmental and oceanographic conditions. This includes the assessment of early diagenetic formation and overprint of sediment-based proxy parameters. Another objective is to study how changing climatic and environmental conditions impact biogeochemical processes and element fluxes in temperate, polar and sub-polar coastal and marine areas. In particular, we determine how the observed increased glacier melt in coastal regions of Antarctica and Sub-Antarctic islands alters the input of iron into the Southern Ocean. Iron is a limiting micronutrient in the high latitudes and exerts a strong control on primary productivity and thus the uptake of carbon dioxide into the ocean.

Working Area

South Atlantic, Sub-Antarctic, Antarctic, North and Central Pacific, North Sea, Black Sea, Arabian Sea

Methods

Pore-water and sediment geochemistry, geochemical sensors, wet-chemical methods to determine iron and manganese mineralogy, isotope geochemistry, reactive transport modelling

Contact
Telefon +49 471 4831 - 1936
Sabine.Kastenawi.de
https://www.awi.de/en/about-us/organisation/staff/single-view/sabine-kasten.html

1992 Diplom Geographie, Geologie, Biologie, Universität Bremen; 1996 Promotion Universität Bremen

Anstellungen/Aufenthalte:
1996-2004 Universität Bremen, Fachbereich Geowissenschaften; seit 2004 Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung in Bremerhaven
Seit 2014 Leiterin der Sektion Marine Geochemie am Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung in Bremerhaven

Professorin in Bremen seit 2017