Dr. Anja Studer Publications
Auderset, A., Fripiat, F., Creel, R.C., Oesch, L., Studer, A.S., Repschläger, J., Hathorne, E., Vonhof, H., Schiebel, R., Gordon, L., Lawrence, K., Ren, H.A., Haug, G.H., Sigman, D.M., Martínez‐García, A. (2024). Sea level modulation of Atlantic nitrogen fixation over glacial cycles. Paleoceanography and Paleoclimatology, 39, e2024PA004878. https://doi.org/10.1029/2024PA004878
Studer, A.S., Wörmer, L., Vogel, H., Dubois, N., Hinrichs, K.-U., Bartosiewicz, M., Lepori, F., Lehmann, M.F. (2024). First lacustrine application of the diatom-bound nitrogen isotope paleo-proxy reveals coupling of denitrification and N2 fixation in a hyper-eutrophic lake. Limnology and Oceanography, 69, 1797-1809. https://doi.org/10.1002/lno.12627
Ai, X.E., Thöle, L.M., Auderset, A., Schmitt, M., Moretti, S., Studer, A.S., Michel, E., Wegmann, M., Mazaud, A., Bijl, P.K., Sigman, D.M., Martínez‐García, A., Jaccard, S.L. (2024). The southward migration of the Antarctic Circumpolar Current enhanced oceanic degassing of carbon dioxide during the last two deglaciations. Communications Earth & Environment 5, 58. https://doi.org/10.1038/s43247-024-01216-x
Fripiat, F., Sigman, D. M., Martínez‐García, A., Marconi, D., Ai, X. E., Auderset, A., Fawcett, S. E., Moretti, S., Studer, A. S., Haug, G. H. (2023). The impact of incomplete nutrient consumption in the Southern Ocean on global mean ocean nitrate δ15N.Global Biogeochemical Cycles, 37, e2022GB007442. https://doi.org/10.1029/2022GB007442
Studer, A. S., Mekik, F., Ren, H., Hain, M. P., Oleynik, S., Martínez‐García, A., Haug, G. H., Sigman, D. M. (2021). Ice Age-Holocene similarity of foraminifera-bound nitrogen isotope ratios in the eastern equatorial Pacific. Paleoceanography and Paleoclimatology, 36, e2020PA004063. https://doi.org/10.1029/2020PA004063
Sigman, D. M., Fripiat, F., Studer, A. S., Kemeny, P. C., Martínez-García, A., Hain, M. P., Ai, X., Wang, X., Ren, H., & Haug, G. H. (2021). The Southern Ocean during the ice ages: A review of the Antarctic surface isolation hypothesis, with comparison to the North Pacific. Quaternary Science Reviews, 254, 106732. https://doi.org/10.1016/j.quascirev.2020.106732
Ai, X. E., Studer, A. S., Sigman, D. M., Martínez-García, A., Fripiat, F., Thöle, L. M., Michel, E., Gottschalk, J., Arnold, L., Moretti, S., Schmitt, M., Oleynik, S., Jaccard, S. L., & Haug, G. H. (2020). Southern Ocean upwelling, Earth’s obliquity, and glacial-interglacial atmospheric CO2 change. Science, 370(6522), 1348–1352. https://doi.org/10.1126/science.abd2115
Gottschalk, J., Michel, E., Thöle, L. M., Studer, A. S., Hasenfratz, A. P., Schmid, N., Butzin, M., Mazaud, A., Martínez-García, A., Szidat, S., & Jaccard, S. L. (2020). Glacial heterogeneity in Southern Ocean carbon storage abated by fast South Indian deglacial carbon release. Nature Communications, 11(1), 6192. https://doi.org/10.1038/s41467-020-20034-1
Fripiat, F., Martínez-García, A., Fawcett, S. E., Kemeny, P. C., Studer, A. S., Smart, S. M., Rubach, F., Oleynik, S., Sigman, D. M., & Haug, G. H. (2019). The isotope effect of nitrate assimilation in the Antarctic Zone: Improved estimates and paleoceanographic implications. Geochimica et Cosmochimica Acta, 247, 261–279. https://doi.org/10.1016/j.gca.2018.12.003
Kemeny, P. C., Kast, E. R., Hain, M. P., Fawcett, S. E., Fripiat, F., Studer, A. S., Martínez-García, A., Haug, G. H., & Sigman, D. M. (2018). A Seasonal Model of Nitrogen Isotopes in the Ice Age Antarctic Zone: Support for Weakening of the Southern Ocean Upper Overturning Cell. Paleoceanography and Paleoclimatology, 33(12), 1453–1471. https://doi.org/10.1029/2018PA003478
Studer, A. S., Sigman, D. M., Martínez-García, A., Thöle, L. M., Michel, E., Jaccard, S. L., Lippolds, J. A., Mazaud, A., Wang, X. T., Robinson, L. F., Adkins, J. F., & Haug, G. H. (2018). Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise. Nature Geoscience, 11(10), 756-760. https://doi.org/10.1038/s41561-018-0191-8
Wang, X. T., Sigman, D. M., Prokopenko, M. G., Adkins, J. F., Robinson, L. F., Hines, S. K., Chai, J., Studer, A. S., Martínez-García, A., Chen, T., & Haug, G. H. (2017). Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences of the United States of America, 114(13), 3352–3357. https://doi.org/10.1073/pnas.1615718114
Ren, H., Studer, A. S., Serno, S., Sigman, D. M., Winckler, G., Anderson, R. F., Oleynik, S., Gersonde, R., & Haug, G. H. (2015). Glacial-to-interglacial changes in nitrate supply and consumption in the subarctic North Pacific from microfossil-bound N isotopes at two trophic levels. Paleoceanography, 30(9), 1217–1232. https://doi.org/10.1002/2014PA002765
Studer, A. S., Sigman, D. M., Martínez-García, A., Benz, V., Winckler, G., Kuhn, G., Esper, O., Lamy, F., Jaccard, S. L., Wacker, L., Oleynik, S., Gersonde, R., & Haug, G. H. (2015). Antarctic Zone nutrient conditions during the last two glacial cycles. Paleoceanography, 30(7), 845–862. https://doi.org/10.1002/2014PA002745
Studer, A. S., Ellis, K. K., Oleynik, S., Sigman, D. M., & Haug, G. H. (2013). Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments. Geochimica Et Cosmochimica Acta, 120, 179–194. https://doi.org/10.1016/j.gca.2013.06.041
Galbraith, E. D., Kienast, M., Albuquerque, A. L., Altabet, M. A., Batista, F., Bianchi, D., Calvert, S. E., Contreras, S., Crosta, X., De Pol-Holz, R., Dubois, N., Etourneau, J., Francois, R., Hsu, T.-C., Ivanochko, T., Jaccard, S. L., Kao, S.-J., Kiefer, T., Kienast, S., Lehmann, M. F., Martinez, P., McCarthy, M., Mix, A., Meckler, A. N., Möbius, J., Pedersen, T. Pichevin, T., Quan, T., Robinson, R. S., Ryabenko, E., Schmittner, A., Schneider, R., Schneider-Mor, A., Shigemitsu, M., Sinclair, D., Somes, C., Studer, A. S., Tesdal, J.-E., Thunell, R., Yang, J.-Y. T. (2013). The acceleration of oceanic denitrification during deglacial warming. Nature Geoscience, 6(7), 579–584. https://doi.org/10.1038/NGEO1832
Straub, M., Tremblay, M. M., Sigman, D. M., Studer, A. S., Ren, H., Toggweiler, J. R., & Haug, G. H. (2013). Nutrient conditions in the subpolar North Atlantic during the last glacial period reconstructed from foraminifera-bound nitrogen isotopes. Paleoceanography, 28(1). https://doi.org/10.1002/palo.20013
Robinson, R. S., Kienast, M., Albuquerque, A. L., Altabet, M., Contreras, S., De Pol Holz, R., Dubois, N., Francois, R., Galbraith, E., Hsu, T.-C., Ivanochko, T., Jaccard, S., Kao, S.-J., Kiefer, T., Kienast, S., Lehmann, M. F., Martinez, P., McCarthy, M., Moebius, J., Pedersen, T., Quan, T. M., Ryabenko, E., Schmittner, A., Schneider, R., Schneider-Mor, A., Shigemitsu, M., Sinclair, D., Somes, C., Studer, A. S., Thunell, R., Yang, J.-Y. (2012). A review of nitrogen isotopic alteration in marine sediments. Paleoceanography, 27, PA4203. https://doi.org/10.1029/2012PA002321
Studer, A. S., Martínez-García, A., Jaccard, S. L., Girault, F. E., Sigman, D. M., & Haug, G. H. (2012). Enhanced stratification and seasonality in the Subarctic Pacific upon Northern Hemisphere Glaciation-New evidence from diatom-bound nitrogen isotopes, alkenones and archaeal tetraethers. Earth and Planetary Science Letters, 351, 84–94. https://doi.org/10.1016/j.epsl.2012.07.029