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Coastal Biogeochemistry
Research News:
Gruber et al. on "Rapid progression of ocean acidification in the California CS", Science
Open Positions:
The Coastal Biogeochemistry group aims to better understand the role of the coastal ocean in the global carbon cycle over the last century, at present, and in the near future. We use high resolution physical-biogeochemical-ecosystem models to investigate the cycling of carbon, nitrogen and related elements (e.g. oxygen and iron) in the highly dynamic coastal ocean as well as exchanges with the open ocean, the atmosphere and the land. Our current research focuses on modern coastal ocean productivity and carbon fluxes in eastern boundary upwelling systems of the Atlantic and the Pacific Ocean and how these quantities are influenced by small scale circulation patterns such as mesoscale eddies and filaments as well as by climate variability and change.
Currently ongoing research projects include:
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Developing and improving the Regional Oceanic Modeling System (ROMS) ROMS is our main tool to study ocean physical, biogeochemical, and ecological processes and their interactions at the regional level. We aim to improve this model by developing better numerical schemes, enhancing its capability to represent key processes, and to develop and test new configurations. |
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What controls biological productivity in Eastern Boundary Currents? We explore the leading physical processes and the environmental key factors controlling biological productivity within the four major EBCs. Our analyses are based on ROMS model simulations, enhanced with advanced statistical analyses of satellite data. |
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On the role of eddies in Eastern Boundary Currents Mesoscale eddies are ubiquitous in the ocean, yet there role for biological productivity and lateral transport remains ill-constrained. In this project, we use ROMS as well as observational analyses to determine the role of such eddies for these two processes. |
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Upper ocean carbon cycle and air-sea CO2 balance in Eastern Boundary Currents We investigate the upper ocean carbon cycle and related elemental cycles in the California and Canary Current Systems using ROMS. Our focus is on the air-sea CO2 balance and the role of coastal regions on atmospheric CO2. |
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Ocean acidification in the North Atlantic coastal ocean Rising atmospheric CO2 levels and increased uptake of CO2 by the ocean causes a reduction in ocean pH. We investigate the geochemical changes and their environmental impacts on the North Atlantic coastal ocean using ROMS. |
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