Dr. Nils Weitzel

Research interests

• Statistical climate reconstructions from pollen records
• Glacial-interglacial climate variability
• Abrupt climate changes
• Bayesian statistics and climate field reconstructions

Publications

• Weitzel, N., Hense, A., Herzschuh, U., Böhmer, T., Cao, X., and Rehfeld, K.: A state estimate of Siberian summer temperature and moisture availability during the Last Glacial Maximum combining pollen records and climate simulations. doi.org/10.31223/X59P9H, preprint, 2022.
• Adam, M., Weitzel, N., and Rehfeld, K.: Identifying Global-Scale Patterns of Vegetation Change During the Last Deglaciation from Paleoclimate Networks, Paleoceanography and Paleoclimatology, 36, e2021PA004265, doi:10.1029/2021PA004265, 2021.
• Weitzel, N., Brierley, C., Bühler, J., Chevalier, M., Ellerhoff, B., Skiba, V., and Rehfeld, K.: Beyond paleoclimate ping pong, Past Glob. Chang. Mag., 29(2), 107, doi:10.22498/pages.29.2.107, 2021.
• Bessac, J., Christensen, H. M., Endo, K., Monahan, A. H., and Weitzel, N.: Scale‐aware space‐time stochastic parameterization of subgrid‐scale velocity enhancement of sea surface fluxes. Journal of Advances in Modeling Earth Systems, 13, e2020MS002367, doi.org/10.1029/2020MS002367, 2021.
• Weitzel, N.: Climate field reconstructions from pollen and macrofossil syntheses using Bayesian hierarchical models. Bonn, Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn, Online Version in bonndoc, 2020.
• Khider, D., Emile‐Geay, J., McKay, N.P., Gil, Y., Garijo, D., Ratnakar, V., ... Weitzel, N., ...: PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data. Paleoceanography and Paleoclimatology, 34, 1570-1596, doi.org/10.1029/2019PA003632, 2019.
• Lu, F., Weitzel, N., and Monahan, A. H.: Joint state-parameter estimation of a nonlinear stochastic energy balance model from sparse noisy data. Nonlin. Processes Geophys., 26, 227–250, doi.org/10.5194/npg-26-227-2019, 2019.
• Weitzel, N., Hense, A., and Ohlwein, C.: Combining a pollen and macrofossil synthesis with climate simulations for spatial reconstructions of European climate using Bayesian filtering. Clim. Past, 15, 1275–1301, doi.org/10.5194/cp-15-1275-2019, 2019.
• Bessac, J., Monahan, A.H., Christensen, H.M., and Weitzel, N.: Stochastic Parameterization of Subgrid-Scale Velocity Enhancement of Sea Surface Fluxes. Mon. Wea. Rev., 147, 1447–1469, doi.org/10.1175/MWR-D-18-0384.1, 2019.
• Weitzel, N., Wagner, S., Sjolte, J., Klockmann, M., Bothe, O., Andres, H., Tarasov, L., Rehfeld, K., Zorita, E., Widmann, M., Sommer, P., Schädler, G., Ludwig, P., Kapp, F., Jonkers, L., Garcia-Pintado, J., Fuhrmann, F., Dolman, A., Dallmeyer, A., and Brücher, T.: Diving into the Past: A Paleo Data–Model Comparison Workshop on the Late Glacial and Holocene. Bull. Amer. Meteor. Soc., 100, ES1–ES4, doi.org/10.1175/bams-d-18-0169.1, 2019.
• Andres, H., Bothe, O., Rehfeld, K., Wagner, S., Weitzel, N., and Zorita, E.: An integrated proxy and simulation data initiative for the Holocene and the last deglaciation. Past Global Changes Magazine, 26/2, 85, doi.org/10.22498/pages.26.2.85, 2018.
• ORCID

Recent conference contributions

• Weitzel, N.: Comparing transient simulations of the last deglaciation with climate reconstructions in space and time , Institutskolloquium, Institut für Umweltphysik, Universität Heidelberg, 15. July, https://www.iup.uni-heidelberg.de/de/institut/aktuelles/vortraege/do-07152021-1100/institutskolloquium, 2021.
• Weitzel, N., Andres, H., Baudouin, J.-P., Bothe, O., Dolman, A., Jonkers, L., Kapsch, M., Kleinen, T., May, M., Mikolajewicz, U., Paul, A., and Rehfeld, K.: Towards model-data comparison of the deglacial temperature evolution in space and time, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-9683, https://doi.org/10.5194/egusphere-egu21-9683, 2021 (vPICO).
• Weitzel, N., Andres, H., Baudouin, J.-P., Bothe, O., Dolman, A., Jonkers, L., Kapsch, M., Kleinen, T., May, M., Mikolajewicz, U., Paul, A., and Rehfeld, K.: Towards model-data comparison of the deglacial temperature evolution in space and time, PalMod seminar series, 2021.
• Weitzel, N., Andres, H., Bühler, J., May, M., Sime, L. C., Sommani, A., Stebich, M., and Rehfeld, K.: The heterogeneous global structure of Dansgaard-Oeschger events in paleoclimate archives and climate simulations. AGU Fall Meeting 2020, Link to abstract.
• Weitzel, N., Adam, M. and Rehfeld, K.: Inferring spatio-temporal vegetation and hydroclimate changes during the last deglaciation, Virtual QUIGS-IFG meeting on glacial terminations, 2020, Link to meeting page.
• Weitzel, N., Adam, M., Sommani, A., and Rehfeld, K.: A spatio-temporal view of variability in pollen records during the last Glacial, PAGES CVAS seminar series, 2020, Link to schedule.
• Weitzel, N., Adam, M., Sommani, A., and Rehfeld, K.: A spatio-temporal view of variability in pollen records during the last Glacial, EGU 2020, Display: , doi:10.5194/egusphere-egu2020-7492.
• Weitzel, N., Hense, A., and Ohlwein, C.: Combining a proxy synthesis and climate simulations for spatial reconstructions of European climate using Bayesian filtering, INQUA 2019, Dublin, Talk, link to abstract.
• Weitzel, N., Adam, M., Stebich, M., and Rehfeld, K.: Estimating climate variability during the last Glacial and Holocene from pollen records. INQUA 2019, Dublin, Poster, doi:10.6084/m9.figshare.9632078.