https://www.geomar.de/fileadmin/content/zentrum/Strategie/GEOMAR_2030_flyer_en.pdf

The RD2 within the research strategy - from the ocean to the atmosphere

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Biogeochemical Processes

Test of an artificial upwelling pump south off the Canary Islands

Photo: Michael Sswat, GEOMAR
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Overview

Biogeochemical Modelling

Icons and Concepts: Iris Kriest, GEOMAR // Drawings: Mariana Hill Cruz, GEOMAR
Photos: Sarah Lee, unsplash // Icons: apple
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Overview

Technicians deploying the CTD into the South Pacific Ocean during cruise SO289

Photo: Nico Fröhberg, Constructor University Bremen
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https://www.geomar.de/en/fb2-bi/microbial-biogeochemistry

Sediment trap deployment during expedition S0305

Photo: Tjark Andersch, Hamburg University
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Overview

Coring and sensor platforms for sampling and monitoring the ocean floor is transported on deck of RV POSEIDON to the deployment location in British North Sea

Photo: Peter Linke, GEOMAR
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GEOMAR  Research  Marine Biogeochemistry

The RD2 Mission

The Research Division Marine Biogeochemistry studies interactions between sediment, oceanic, and atmospheric material reservoirs and the organisms including humans which impacts marine biogeochemical processes addressing the following overreaching research questions:

  • What are the impacts of climate change on marine biogeochemistry including feedbacks?
  • How do changes in marine communities alter biogeochemical processes?
  • What are the natural drivers of CO2 uptake and sequestration and what are options for enhancing marine CO2 removal?
  • How do human use and misuse of the ocean affect marine biogeochemistry and what are the options for remediation?

The scientific research of the four research units are embedded in the research program 'Changing Earth - Sustaining our Future', here mainly in topic 6, and the GEOMAR 2030 strategy with its Core Themes and Integrative Research Foci (IRFs).

The RD2 Core Areas: 4 Research Units

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Biological Oceanography

Click here to see the Biological Oceanography's websites.

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Biogeochemical Modelling

Click here to see the Biogeochemical Modelling's websites.

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Chemical Oceanography

Click here to see the Chemical Oceanography's websites.

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Marine Geosystem

Click here to see the Marine Geosystem's websites.

RD2 News

A black-and-white research vessel with a red funnel and a crane at sea
19.10.2026

A Voyage into the Slow-Motion World of the Deep Sea

Expedition SO322 is investigating the environmental consequences of future mining of polymetallic nodules

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The research vessel ALKOR in the Baltic Sea
14.10.2026

Focus on the Environmental Impact of Marine Munitions in the Baltic Sea

Expedition AL663 researching dumped munitions in collaboration with international partners

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View from the MARIA S. MERIAN as it leaves the harbour
12.10.2026

Rung by Rung Into the Depths

GEOMAR expedition investigates vertical migrations of organisms using specialised cameras

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RD2
Marine Biogeochemistry
Research Divisions
Core Themes
Integrative Research Foci
Programs and projects
Miscellaneous