Dr Patricia Grasse
Current Research Project
Due to ongoing unmitigated anthropogenic carbon dioxide (CO2) emissions, the world is experiencing global warming. In addition to the reduction of CO2 emissions, Negative Emission Technologies (NETs) are required to remove CO2 from the atmosphere. A very promising NET is enhancing the natural process of weathering as well as the associated process of (ocean) alkalinity enhancement ((O)AE), where ground minerals (e.g., olivine, carbonate, basalt) are spread over various habitats (marine, terrestrial) to enhance the flux of CO2 from the atmosphere to the soil/ocean and achieve subsequent burial.
My current research includes biogeochemical as well as socio-economic aspects in order to assess the potential and risks of marine NETs. The aim is to integrate biogeochemical observation into an integrated assessment model, providing initial insights on the role of OAE for climate policy. We also aim to chart the various open research questions for example with respect to transnational (pollution) impacts or the logistical supply chain and to supplement the numerical derivation of optimal climate policies with a scenario-based investigation of OAE on the Sustainable Development Goals (SDGs).
- since 2020 Researcher at the iDiv
- 2016 to 2019 PostDoc at GEOMAR Helmholtz Centre for Ocean Research Kiel
- 2015 Postdoctoral Fellowship at the University of California, Santa Barbara (USA)
- 2012 to 2015 PostDoc at GEOMAR Helmholtz Centre for Ocean Research Kiel
- 2008 to 2012 PhD candidate at the University of Kiel, Germany
ORCID: 0000-0002-1745-4418 (Link: https://orcid.org/0000-0002-1745-4418)
A. W. Dale, K. M. Paul, D. Clemens, F. Scholz, U. Schroller-Lomnitz, K. Wallmann, S. Geilert, C. Hensen, A. Plass, V. Liebetrau, P. Grasse, S. Sommer(2021): Recycling and Burial of Biogenic Silica in an Open Margin Oxygen Minimum Zone. Global Biogeochemical Cycles 35(2) *
K. Doering, C. Ehlert, K. Pahnke, M. Frank, R. Schneider, P. Grasse(2021): Silicon Isotope Signatures of Radiolaria Reveal Taxon-Specific Differences in Isotope Fractionation. Frontiers in Marine Science
Bach, L. T., A. J. Paul, T. Boxhammer, E. von der Esch, M. Graco, K. G. Schulz, E. Achterberg, P. Aguayo, J. Arístegui, P. Ayón, I. Baños, A. Bernales, A. S. Boegeholz, F. Chavez, G. Chavez, S. M. Chen, K. Doering, A. Filella, M. Fischer, P. Grasse, M. Haunost, J. Hennke, N. Hernández-Hernández, M. Hopwood, M. Igarza, V. Kalter, L. Kittu, P. Kohnert, J. Ledesma, C. Lieberum, S. Lischka, C. Löscher, A. Ludwig, U. Mendoza, J. Meyer, J. Meyer, F. Minutolo, J. Ortiz Cortes, J. Piiparinen, C. Sforna, K. Spilling, S. Sanchez, C. Spisla, M. Sswat, M. Zavala Moreira, U. Riebesell(2020): Factors controlling plankton community production, export flux, and particulate matter stoichiometry in the coastal upwelling system off Peru. Biogeosciences 17(19) *
Geilert, S., P. Grasse, K. Wallmann, V. Liebetrau, C. D. Menzies
(2020): Serpentine alteration as source of high dissolved silicon and elevated δ30Si values to the marine Si cycle. Nature Communications 11(1) *
Grasse, P., Closset, I., Jones, J. L., Geilert, S., Brzezinski, M. A.(2020): Controls on Dissolved Silicon Isotopes Along the U.S. GEOTRACES Eastern Pacific Zonal Transect (GP16). Global Biogeochemical Cycles 34(9) *