Sandra Arndt

Although considerable progress has been made over the past decades in understanding and quantifying carbon cycle-climate feedbacks, many aspects of the global carbon cycle are still not well understood and, thus, very poorly resolved in Earth system models. This is particular true for the fate of (organic) carbon as it cycles through the Earth system and across its interfaces (such as the sediment-water, the ice-ocean or the land-ocean interface). Advancing our quantitative, mechanistic understanding of carbon (and associated inorganic and nutrient) cycling; using this understanding to improve Earth System Models and applying the improved models to assess the role of carbon cycle-climate feedbacks for past and future climate change is the foundation of my ongoing research.

Hülse D., Arndt S., Daines S., Regnier P. and Ridgwell A. (2018) OMEN-SED 1.0: a novel, numerically efficient organic matter sediment diagenesis module for coupling to Earth system models. Geosci. Model Dev., 11, 2649-2689, doi: 10.5194/gmd-11-2649-2018.
Arndt, S., Jørgensen, B.B., LaRowe, D.E., Middelburg, J.J., and Regnier, P. 2013, Quantification of organic matter degradation in marine sediments: A synthesis and model review. Earth-Science Reviews, 123, 53-86, doi: 10.1016/j.earscirev.2013.02.008.
Wadham, J.L., S. Arndt, S. Tulaczyk, M, Stibal, M. Tranter, A., Ridgwell, J. Telling, E. Lawson, A. Dubnick, M.J. Sharp, A.M Anesio, C. Butler. 2013, Potential methane reserves beneath Antarctica, Nature, 488, 633-637, doi: 10.1038/nature11374.
Regnier, P., Friedlingstein, P., Ciais, P., Mackenzie, F.T., Gruber, N, Janssens, I., Laruelle, G., Lauerwald, R., Luyssaert, S., Andersson, A., Arndt, S., Arnosti, C., Borges, A., Dale, A., Gallego-Sala, A., Gooderis, Y., Hartmann, J., Heinze, C., Illyina, T., Joos, F., LaRowe, D., Leifeld, J., Meysman, F., Munhoven, G., Raymond, P., Spahni, R., Suntharalingam, P., Thullner, M., 2013, The anthrophogenic perturbation of the carbon fluxes from land to ocean. Nature Geosciences, 6, 597-607, doi: 10.1038/NGEO1830.
Arndt, S., Hetzel, A., and Brumsack, H.-J., 2009. Evolution of organic matter degradation in Cretaceous black shales inferred from authigenic barite: a reaction-transport model. Geochimica et Cosmochimica Acta, 73, 2000-2022, doi: 10.1016/j.gca.2009.01.018.

Biogeochemistry and Modeling of the Earth System

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