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Publications


  • peer-reviewed:

    1. Friedrich, T., B. S. Powell , J. L. Gunnarson, G. Liu, S. F. Giardina, M. F. Stuecker, L. Hošeková, K. Feloy, and C. A. Stock (2024), Submesoscale-Permitting Physical/Biogeochemical Future Projections for the Main Hawaiian Islands, J. Adv. Mod. Earth Sys., 16, doi: 10.1029/2023MS003855.   link   pdf
    2. Liu, G., Powell, B. S., and T. Friedrich (2023), Climate downscaling for regional models with a neural network: A Hawaiian example, Progress in Oceanography, 215, doi:10.1016/j.pocean.2023.103047.   link
    3. Ma, Y., S. Weldeab, R. R. Schneider, N. Andersen, D. Garbe-Schönberg, and T. Friedrich (2021), Strong Southern African Monsoon and weak Mozambique Channel throughflow during Heinrich events: Implication for Agulhas leakage, Earth and Planetary Science Letters, 574, doi: 10.1016/j.epsl.2021.117148.   link
    4. Friedrich, T., B. S. Powell , C. A. Stock , L. Hahn-Woernle, R. Dussin, and E. N. Curchitser (2021), Drivers of Phytoplankton Blooms in Hawaii: A Regional Model Study, J. Geophys. Res., 126, e2020JC017069, doi: 10.1029/2020JC017069.   link
    5. Bradshaw, C. J. A., K. Norman, S. Ulm, A. N. Williams, C. Clarkson, J. Chadœuf, S. C. Lin, Z. Jacobs, R. G. Roberts, M. I. Bird, L. S. Weyrich, S. G. Haberle, S. O'Connor, B. Llamas, T. J. Cohen, T. Friedrich, P. Veth, M. Leavesley, and F. Saltré (2021), Stochastic models support rapid peopling of Late Pleistocene Sahul, Nature Communications, 12, 2440, doi: 10.1038/s41467-021-21551-3.   link     press release   video
    6. Leitner, A. B., T. Friedrich, C. D. Kelley, S. Travis, D. Partridge, B. S. Powell, and J. C. Drazen (2021), Biogeophysical influence of large-scale bathymetric habitat types on mesophotic and upper bathyal demersal fish assemblages: a Hawaiian case study, Marine Ecology Progress Series, doi: 10.3354/meps13581.   pdf
    7. Blanchet, C. L., A. H. Osborne, R. Tjallingii, W. Ehrmann, T. Friedrich, A. Timmermann, W. Brückmann, and M. Frank (2021), Drivers of river reactivation in North Africa during the last glacial cycle, Nature Geosciences, doi: 10.1038/s41561-020-00671-3.   link   press release   read
    8. Gallego, M. A., A. Timmermann, T. Friedrich, and R. E. Zeebe (2020), Anthropogenic Intensification of Surface Ocean Interannual pCO₂ Variablility, Geophysical Research Letters, 47, e2020GL087104, doi: 10.1029/2020GL087104.   link
    9. Stein, K., A. Timmermann, E. Y. Kwon, and T. Friedrich (2020), Timing and magnitude of Southern Ocean sea ice/carbon cycle feedbacks, Proceedings of the National Academy of Sciences, doi: 10.1073/pnas.1908670117.   link   press release
    10. Menviel, L. C., P. Spence, L. C. Skinner, K. Tachikawa, T. Friedrich, L. Missiaen, and J. Yu (2020), Enhanced Mid-depth Southward Transport in the Northeast Atlantic at the Last Glacial Maximum Despite a Weaker AMOC, Paleoceanography and Paleoclimatology, 35, doi:10.1029/2019PA003793.   link
    11. Friedrich, T., and A. Timmermann (2019), Using Late Pleistocene sea surface temperature reconstructions to constrain future greenhouse warming, Earth and Planetary Science Letters, 530, doi: 10.1016/j.epsl.2019.115911.   link
    12. Saltré, F., J. Chadoeuf, K. J. Peters, M. C. McDowell, T. Friedrich, A. Timmermann, S. Ulm, and C. J. A. Bradshaw (2019), Climate-human interaction associated with southeast Australian megafauna-extinction patterns, Nature Communications, doi: 10.1038/s41467-019-13277-0.   pdf   press release   video
    13. Peters, K. J., F. Saltré T. Friedrich, Z. Jacobs, R. Wood, M. McDowell, S. Ulm, and C. J. A. Bradshaw (2019), FosSahul 2.0, an updated database for the Late Quaternary fossil records of Sahul, Scientific Data, 6, 272, doi: 10.1038/s41597-019-0267-3.   pdf
    14. Tigchelaar, M., A. Timmermann, T. Friedrich, M. Heinemann, and D. Pollard (2019), Nonlinear response of the Antarctic Ice Sheet to late Quaternary sea level and climate forcing, The Cryosphere, 13, 2615-2631, doi: 10.5194/tc-13-2615-2019.   pdf
    15. Wagner, B., H. Vogel, A. Francke, T. Friedrich, T. Donders, J. H. Lacey, M. J. Leng, E. Regattieri, L. Sadori, T. Wilke, G. Zanchetta, C. Albrecht, A. Bertini, N. Combourieu-Nebout, A. Cvetkoska, B. Giaccio, A. Grazhdani, T. Hauffe, J. Holtvoeth, S. Joannin, E. Jovanovska, J. Just, K. Kouli, I. Kousis, A. Koutsodendris, S. Krastel, M. Lagos, N. Leicher, Z. Levkov, K. Lindhorst, A. Masi, M. Melles, A. M. Mercuri, S. Nomade, N. Nowaczyk, K. Panagiotopoulos, O. Peyron, J. M. Reed, L. Sagnotti, G. Sinopoli, B. Stelbrink, R. Sulpizio, A. Timmermann, S. Tofilovska, P. Torri, F. Wagner-Cremer, T. Wonik, and X. Zhang (2019), Mediterranean winter rainfall in phase with African monsoons during the past 1.36 million years, Nature, 573, 256-260, doi: 10.1038/s41586-019-1529-0. link   press release   read
    16. Schloesser, F., T. Friedrich, A. Timmermann, R. M. DeConto, and D. Pollard (2019), Antarctic iceberg impacts on future Southern Hemisphere climate, Nature Climate Change, 9, 672-677, doi: 10.1038/s41558-019-0546-1. link   press release   read
    17. Bradshaw, C. J. A., S. Ulm, A. N. Williams, M. I. Bird, R. G. Roberts, Z. Jacobs, F. Laviano, L. S. Weyrich, T. Friedrich, K. Norman, and F. Saltré (2019), Minimum founding populations for the first peopling of Sahul, Nature Ecology & Evolution, 3, 1057-1063, doi: 10.1038/s41559-019-0902-6. link   press release   video
    18. Partridge, D., T. Friedrich, and B. S. Powell (2019), Reanalysis of the PacIOOS Hawaiian Island Ocean Forecast System, an implementation of the Regional Ocean Modeling System v3.6, Geosci. Model Dev., 12, 195-213, doi: 10.5194/gmd-12-195-2019.   pdf
    19. Gallego, M. A., A. Timmermann, T. Friedrich, and R. E. Zeebe (2018), Drivers of future seasonal cycle changes in oceanic pCO₂, Biogeosciences, 15, 5315-5327, doi: 10.5194/bg-15-5315-2018.   pdf
    20. Tigchelaar, M., A. Timmermann, D. Pollard, T. Friedrich, and M. Heinemann (2018), Local insolation changes enhance Antarctic interglacials: Insights from an 800,000-year ice sheet simulation with transient climate forcing, Earth and Planetary Science Letters, 495, 69-78, doi:10.1016/j.epsl.2018.05.004.   link
    21. Lo, L., S.T. Belt, J. Lattaud, T. Friedrich, C. Zeeden, S. Schouten, L. Smik, A. Timmermann, P. Cabedo-Sanz, J.-J. Huang, L. Zhou, T.-H. Ou, Y.-P. Chang, L.-C. Wang, Y.-M. Chou, C.-C. Shen, M.-T. Chen, K.-Y. Wei, S.-R. Song, T.-H. Fang, S.A. Gorbarenko, W.-L. Wang, T.-Q. Lee, H. Elderfield, and D.A. Hodell (2018), Precession and atmospheric CO₂ modulated variability of sea ice in the central Okhotsk Sea since 130,000 years ago, Earth and Planetary Science Letters, 488, 36-45, doi:10.1016/j.epsl.2018.02.005.   link
    22. Friedrich, T., A. Timmermann, M. Tigchelaar, O. Elison Timm, and A. Ganopolski (2016), Nonlinear climate sensitivity and its implications for future Greenhouse Warming, Science Advances, 2, e1501923, doi: 10.1126/sciadv.1501923.  pdf   press release   US CLIVAR  
    23. Timmermann, A., and T. Friedrich (2016), Late Pleistocene climate drivers of early human migration, Nature, 538, 92-95, doi:10.1038/nature19365.  link   video   animation   press release
    24. Weldeab, S., T. Friedrich, A. Timmermann, and R. R. Schneider (2016), Strong middepth warming and weak radiocarbon imprints in the equatorial Atlantic during Heinrich 1 and Younger Dryas, Paleoceanography, 31, doi:10.1002/2016PA002957.  link
    25. Stockhecke, M., A. Timmermann, R. Kipfer, G. H. Haug, O. Kwiecien, T. Friedrich, L. Menviel, T. Litt, N. Pickarski, and F. S. Anselmetti (2016), Millennial to orbital-scale variations of drought intensity in the Eastern Mediterranean, Quaternary Science Reviews, 133, 77-95.  link
    26. Hauri, C., T. Friedrich, A. Timmermann (2015), Abrupt onset and prolongation of aragonite undersaturation events in the Southern Ocean, Nature Climate Change, 6, 172-176, doi:10.1038/nclimate2844.   link   video   press release
    27. Freeman, E., L.C. Skinner, A. Tisserand, T. Dokken, A. Timmermann, L. Menviel, T. Friedrich (2015), An Atlantic–Pacific ventilation seesaw across the last deglaciation, Earth and Planetary Science Letters, 424, 237-244, doi:10.1016/j.epsl.2015.05.032.  link
    28. Friedrich, T., A. Timmermann, T. Stichel, and K. Pahnke (2014), Ocean circulation reconstructions from eps(Nd): A model-based feasibility study, Paleoceanography, 29, doi:10.1002/2014PA002658.  link
    29. Weber, M.E., P.U. Clark, G. Kuhn, A. Timmermann, D. Sprenk, R. Gladstone, X. Zhang, G. Lohmann, L. Menviel, M.O. Chikamoto, T. Friedrich, and C. Ohlwein (2014), Millennial-scale variability in Antarctic ice-sheet discharge during the last deglaciation, Nature, 510, 134-138, doi:10.1038/nature13397. link
    30. Timmermann, A., T. Friedrich, O. Elison Timm, M. O. Chikamoto, A. Abe-Ouchi, and A. Ganopolski (2014), Modeling obliquity and CO₂ effects on Southern Hemisphere climate during the past 408 ka, Journal of Climate, 27, 1863-1875, doi:10.1175/JCLI-D-13-00311.1.  link
    31. Menviel, L., A. Timmermann, T. Friedrich, and M. H. England (2014), Hindcasting the continuum of Dansgaard–Oeschger variability: mechanisms, patterns and timing, Climate of the Past, 10, 63-77, doi:10.5194/cp-10-63-2014.  pdf
    32. Kienast, S. S., T. Friedrich, N. Dubois, P. S. Hill, A. Timmermann, A. C. Mix, M. Kienast (2013), Near-collapse of the meridional SST gradient in the Eastern Equatorial Pacific during the Heinrich Stadial 1, Paleoceanography, 28, doi:10.1002/2013PA002499.  link
    33. Joos, F., R. Roth, J. S. Fuglestvedt, G. P. Peters, I. G. Enting, W. von Bloh, V. Brovkin, E. J. Burke, M. Eby, N. R. Edwards, T. Friedrich, T. L. Frölicher, P. R. Halloran, P. B. Holden, C. Jones, T. Kleinen, F. Mackenzie, K. Matsumoto, M. Meinshausen, G.-K. Plattner, A. Reisinger, J. Segschneider, G. Shaffer, M. Steinacher, K. Strassmann, K. Tanaka, A. Timmermann and A. J. Weaver (2013), Carbon dioxide and climate impulse response functions for the computation of greenhouse gas metrics: a multi-model analysis, Atmospheric Chemistry and Physics, 13, 2793-2825.  pdf
    34. Friedrich, T., and A. Timmermann (2012), Millennial-scale glacial meltwater pulses and their effect on the spatiotemporal benthic δ¹⁸O variability, Paleoceanography, 27, PA3215, doi:10.1029/2012PA002330.  link
    35. Friedrich, T., A. Timmermann, A. Abe-Ouchi, N. R. Bates, M. O. Chikamoto, M. J. Church, J. E. Dore, D. K. Gledhill, M. González-Dávila, M. Heinemann, T. Ilyina, J. H. Jungclaus, E. McLeod, A. Mouchet, J. M. Santana-Casiano (2012), Detecting regional anthropogenic trends in ocean acidification against natural variability, Nature Climate Change, 2, doi:10.1038/nclimate1372.   link   SharedIt   video   press release
    36. Friedrich T. , A. Timmermann, T. Decloedt, D. S. Luther, and A. Mouchet (2011), The effect of topography-enhanced diapycnal mixing on ocean and atmospheric circulation and marine biogeochemistry, Ocean Modelling, 3-4, doi:10.1016/j.ocemod.2011.04.012.  link
    37. Timmermann, A., J. Knies, O. Elison Timm, A. Abe-Ouchi, and T. Friedrich (2010), Promotion of glacial ice sheet buildup 60-115 kyr B.P. by precessionally paced Northern Hemispheric meltwater pulses, Paleoceanography, doi:10.1029/2010PA001933.  link
    38. Friedrich, T., A. Timmermann, L. Menviel, O. Elison Timm, A. Mouchet, and D. M. Roche (2010), The mechanism behind internally generated centennial-to-millennial scale climate variability in an earth system model of intermediate complexity, Geosci. Model Dev., 3, 377-389.  pdf
    39. Steinhoff, T., T. Friedrich, S. E. Hartmann, A. Oschlies, D. W. R. Wallace, and A. Körtzinger (2010), Estimating mixed layer nitrate in the North Atlantic Ocean, Biogeosciences, 7, 795-807.  pdf
    40. Watson, A. J., U. Schuster, D. C. E. Bakker, N. R. Bates, A. Corbière, M. González-Dávila, T. Friedrich, C. Heinze, T. Johannessen, A. Körtzinger, N. Metz, J. Olafsson, A. Olsen, A. Oschlies, B. Pfeil, J. M. Santana-Casiano, T. Steinhoff, M. Telszewski. A. F. Rios, D. W. R. Wallace, and R. Wanninkhof (2009), Tracking the variable North Atlantic sink for atmospheric CO₂, Science, 326, doi:10.1126/science.1177394.  link
    41. Friedrich, T., and A. Oschlies (2009), Basinscale pCO₂ maps estimated from ARGO float data - a model study, J. Geophys. Res., 114, C10012, doi:10.1029/2009JC005322.  link
    42. Friedrich, T., and A. Oschlies (2009), Neural-network based estimates of North Atlantic surface pCO₂ from satellite data - a methodological study, J. Geophys. Res., 114, C03020, doi:10.1029/2007JC004646.  link
    43. Friedrich, T., A. Oschlies, and C. Eden (2006), Role of wind stress and heat fluxes in generating interannual-to-decadal variability of air-sea CO₂ and O₂ fluxes in a North Atlantic model, Geophys. Res. Lett., 33, LS21S04, doi:10.1029/2006GL026538.  link

  • other:

    Friedrich, T., and A. Timmermann (2015), Effects of Sea—Ice and Ocean—Circulation Changes on Deglacial Deep-Ocean Radiocarbon Trends, Nova Acta Leopoldina, 121, 65-69.

    Timmermann, A., and T. Friedrich (2015), Deglacial CO₂/Climate Feedbacks: Models, Myth, and Misconceptions, Nova Acta Leopoldina, 121, 235-239.

    Friedrich, T., U. Schuster, and T. Steinhoff (2014), CO₂ in the North Atlantic Ocean, section 5.2.3 of Ocean-Atmosphere Interactions of Gases and Particles, doi: 10.1007/978-3-642-25643-1_5.  download book

    Friedrich, T., PhD thesis (2009): Dynamical interpolation of surface pCO₂ between lines of observation in the North Atlantic Ocean.

    Friedrich, T., Diploma thesis (2004): Biophysical driving mechanisms of seasonal and interannual-to-decadal variability of CO₂- and O₂-fluxes in a North Atlantic model.