PhD student Tel.: +49-441-798-3839 Mail: benjamin.owusu [at] uni-oldenburg.de

Research Interest

My research interest lies in the field of marine biogeochemistry, with a specific focus on the interactions between climate change and the marine and global carbon cycle. I apply numerical modeling and simulations to explain how these interactions influence carbon dynamics in the ocean. This is crucial for predicting future climate scenarios and evaluating the effectiveness of climate change mitigation strategies.

Current Project

My current research (PhD-research) focuses on numerical modeling of dissolved organic matter (DOM) in the ocean; a large marine carbon inventory with implications for the Marine carbon cycle and the climate system, and it's interactions with diverse microbial communities.

In this project, I am currently working with Ocean Parcels to create and track trajectories of dissolved organic matter in the sub-tropical gyres considering their present day tracer concentrations and the impact of net primary production, temperature, nutrients etc. Information from this will be used to study how bacteria interact with DOM using a diversified network of bacteria-DOM.

Past Research Projects

• Consequences of large-scale carbon sequestration with floating macro-algae on the marine oxygen distribution – Master thesis project

In this project I modified version 2 of the Regulated Ecosystem model (RecoM-2) to study how the net effect of artificial ocean afforestation (via ocean pipes) with Sargassum for large-scale carbon removal will affect dissolved oxygen concentrations in the benthic zones of the ocean.

• Application of Resistivity and Induced Polarization in mapping decommissioned waste dumpsite in Kotie, a suburb of Kumasi-Ghana

In this project I applied geophysical methods (Electrical Resistivity and Induced Polarization) to study how the ground water quality has been affected at a decommissioned waste dumpsite.

Academic Career

• 2022 – Date : Doctoral candidate – Institute for Chemistry and Biology of the marine environment – Carl von Ossietzky University of Oldenburg

• 2018 – 2022 : Master of Science (MSc. Environmental Physics) – University of Bremen, Germany

• 2012 – 2016 : Bachelor of Science (Bsc.) Physics (Geophysics) – Kwame Nkrumah University of Science and Technology, Kumasi-Ghana