Marine Biogeochemistry

The Research Division Marine Biogeochemistry has four Research Units: Biogeochemical  Modelling, Biological Oceanography, Chemical Oceanography and Marine Geosystems.

Contact

Head of the Research Division 2 - Marine Biogeochemistry:

Prof. Dr. Klaus Wallmann
GEOMAR Helmholtz Centre for Ocean Research Kiel
East shore campus
Wischhofstraße 1-3
D-24148 Kiel
Germany
Phone: +49-431 600-2287
Fax: +49-431 600-2928
e-mail: kwallmann(at)geomar.de 

Assistance/Office Management of the Research Division 2 - Marine Biogeochemistry (RD2):
Silvana Gagliardi
Phone: +49 431 600-4445
Fax: +49 431 600-4446
e-mail: sgagliardi(at)geomar.de

Publications

Overview

Work in the Marine Biogeochemistry Research Division focuses on interactions between sediment, oceanic, and atmospheric material reservoirs and the organisms (including humans) which mediate marine biogeochemical processes.

Major emphasis is on the highly dynamic interfaces between atmosphere and ocean and sediment and ocean. Particular attention is paid to elements and compounds that are highly mobile and radiatively active.

 The research activities of the Division extend from the oceanic crust and sediments, through the water column to the surface layer and marine atmosphere. Investigative approaches include field work, laboratory and mesocosm studies as well as modeling.

A closely related theme is the development of chemical, biological and isotopic diagnostic tools (proxies) that are suited to investigation of current and past oceanic conditions. An emerging research area concerns the future biogeochemical state of the oceans in a high-CO2 environment.

The Division comprises a community of geochemists, biologists, geologists, physicists and modellers with complementary skills, diverse perspectives and inter-related scientific interests.

RD2 News

Coral reefs off the coast of the Mexican peninsula Yucatan near groundwater sources (Ojos). Photo: Elizabeth D. Crook
08.08.2019

Stony corals: Limits of adaption

New study on coral growth in times of climate change

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Currently, organic material in the ocean is mainly degraded with oxygen (left). Together with a warming of the ocean this leads to deoxygenation. In a future, warmer ocean (right), more organic material is respirated by denitrification with nitrate. The associated oxygen saving would even exceed the oxygen loss due to warming. Graphic: Rita Erven/GEOMAR
27.06.2019

The far–future ocean: warm yet oxygen-rich

Model study identifies an oxygen-saving mechanism from sloppy nitrogen-cycle interactions

more