International Pacific Research Center | People

Oliver Elison Timm

Assistant Researcher
[Past Staff]

International Pacific Research Center
School of Ocean and Earth Science and Technology
University of Hawaii
Honolulu, Hawaii 96822

Email:
Webpage: http://iprc.soest.hawaii.edu/users/timm/

Education

2003 - Dr. rer. nat. (Ph.D.), Meteorology, Institut für Meereskunde, University of Kiel, Kiel, Germany
2000 - Diplom (M.S.), Meteorology, Institut für Meereskunde, University of Kiel, Kiel, Germany

Research Interests

Paleoclimate modeling
Climate dynamics on orbital and millennial timescales
Applying advanced statistical methods to climate dynamics
Paleoclimatic high-resolution reconstructions of dominant climate modes like ENSO, NAO

Scientific Work Experience

Postdoctoral Fellow, International Pacific Research Center (IPRC), SOEST, University of Hawaii, USA, August 2004 – present
Research/Teaching Assistant, Leibniz Institute of Marine Sciences, Kiel University (IFM-GEOMAR), Kiel, Germany, February 2004 – July 2004
Research Assistant (Ph.D. Student), Institut für Meereskunde, Kiel, Germany, February 2000 – December 2003

Refereed Publications

Friedrich, T., A. Timmermann, M. Tigchelaar, O. Elison Timm, and A. Ganopolski, 2016: Nonlinear climate sensitivity and its implications for future Greenhouse Warming. Sci. Adv. 2, 2 (11), e1501923, doi:10.1126/sciadv.1501923. IPRC-1198.
Heinemann, M., A. Timmermann, O. Elison Timm, F. Saito, and A. Abe-Ouchi, 2014: Deglacial ice-sheet meltdown: orbital pacemaking and CO₂ effects. Climate of the Past, 10, 509-532, doi:10.5194/cpd-10-509-2014. IPRC-1045.
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. J. Climate, 27 (5), 1863-1875, doi:10.1175/JCLI-D-13-00311.1. IPRC-1025.
Elison Timm, O., M. Takahashi, T.W. Giambelluca, and H.F. Diaz, 2013: On the Relation between Large-Scale Circulation Pattern and Heavy Rain Events over the Hawaiian Islands: Recent Trends and Future Changes. J. Geophys. Res.-Atmos., 118 (10), 4129-4141, doi:10.1002/jgrd.50314. IPRC-961.
Lauer, A., C. Zhang, O. Elison Timm, Y. Wang, and K. Hamilton, 2013: Downscaling of climate change in the Hawaii region using CMIP5 results: On the choice of the forcing fields. J. Climate, 26 (24), 10006-10030, doi:10.1175/JCLI-D-13-00126.1. IPRC-996.
Elison Timm, O., H.F. Diaz, T.W. Giambelluca, and M. Takahashi, 2011: Projection of Changes in the Frequency of Heavy Rain Events over Hawaii Based on Leading Pacific Climate Modes. J. Geophys. Res.-Atmos., 116, D041.
Menviel, L., A. Timmermann, O. Elison Timm, and A. Mouchet, 2011: Deconstructing the Last Glacial Termination: The role of millennial and orbital-scale forcings. Quaternary Science Reviews, 30, 1155-1172.
Menviel, L., A. Timmermann, O. Elison Timm, A. Mouchet, A. Abe-Ouchi, M.O. Chikamoto, N. Harada, R. Ohgaito and Y. Okazaki, 2011: Removing the North Pacific halocline: Effects on global climate, ocean circulation and the carbon cycle. Deep Sea Res. II, doi:10.1016/j.dsr2.2011.03.005.
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. Geoscientific Model Development, 116, D04109.
Menviel, L., A. Timmermann, O. Elison Timm, and A. Mouchet, 2010: Climate and biogeochemical response to a rapid melting of the West-Antarctic Ice Sheet during interglacials and implications for future climate. Paleoceanography, 25, PA4231, doi:10.1029/2009PA001892.
Timm, O., P. Koehler, A. Timmermann, and L. Menviel, 2010: Mechanisms for the onset of the African Humid Period and Sahara Greening 14.5-11 ka BP. J. Climate, 23, 2612-2633. doi: 10.1175/2010JCLI3217.1.
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, 25, PA4208, doi: 10.129/2010PA001933.
Friedrich,T., A. Timmermann, L. Menviel, O. Timm, A. Mouchet, and D.M. Roche, 2009: Orbital modulation of millennial-scale climate variability in an earth system model of intermediate complexity. Clim. Past Discuss., 5, 2019-2051.
McGregor, S. A. Timmermann, and O. Timm, 2009: A Unified Proxy for ENSO variability since 1650. Climate of the Past Discussions, 5, 2177-2222.
Timm, O., and H.F. Diaz, 2009: Synoptic-Statistical Approach to Regional Downscaling of IPCC 21st Century Climate Projections: Seasonal Rainfall over the Hawaiian Islands. J. Climate, 22 (16), 4261-4280.
Timmermann, A., L. Menviel, Y. Okumura, A. Schilla, U. Merkel, O. Timm, A. Hu, B. Otto-Bliesner, and M. Schulz, 2010: Towards a quantitative understanding of millennial-scale Antarctic Warming events. Quaternary Science Reviews, 29, 74-85.
Timmermann, A., O. Timm, L. Stott, and L. Menviel, 2009: The roles of CO2 and orbital forcing in driving Southern Hemispheric temperature variations during the last 21,000 years. J. Climate, 22 (7), 1626-1640.
Zinke, J., M. Pfeiffer, O. Timm, W.-Ch. Dullo, and G.J.A. Brummer, 2009: Western Indian Ocean Marine and Terrestrial Records of Climate Variability: A Review and new Concepts on Land-Ocean Interactions since AD 1660. Intern. J. Earth Sciences, 98 (1), 115-133.
Cahyarini, S.Y., M. Pfeiffer, O. Timm, W.-C. Dullo, and D.G. Schönberg, 2008: Reconstructing seawater δ18O from paired coral δ18O and Sr/Ca ratios: Methods, error analysis and problems, with examples from Tahiti (French Polynesia) and Timor (Indonesia). Geochimica et Cosmochimica Acta, 72 (12), 2841-2853.
Menviel, L., A. Timmermann, A. Mouchet, and O. Timm, 2008: Climate and marine carbon cycle response to changes in the strength of the Southern Hemispheric westerlies. Paleoceanography, 23, PA4201, doi:10.1029/2008PA001604.
Menviel, L., A. Timmermann, A. Mouchet, and O. Timm, 2008: Meridional reorganizations of marine and terrestrial productivity during glacial Heinrich events. Paleoceanography, 23, doi:10.1029/2007PA001445.
Timm, O., A. Timmermann, A. Abe-Ouchi, F. Saito, and T. Segawa, 2008 : On the definition of seasons in paleoclimate simulations with orbital forcing. Paleoceanography, 23, PA2221.
Zinke, J., M. Pfeiffer, O. Timm, W.-Chr. Dullo, D. Kroon, and B.A. Thomassin, 2008: Mayotte coral reveals hydrological changes in the western Indian Ocean between 1881 and 1994. Geophys. Res. Lett., 35, L23707;doi:10.1029/2008GL035634.
Lamy, F., J. Kaiser, H. Arz, U. Ninnemann, O. Timm, A. Timmermann, and D. Hebbeln, 2007: Modulation of the bipolar seesaw in the Southeast Pacific during Termination 1. Earth Planetary Science Letters, 259, 400-413.
Stocker, T.F., A. Timmermann, M. Renold, and O. Timm, 2007: Effects of salt compensation on the climate model response in simulations of large changes of the Atlantic meridional overturning circulation. J. Climate, 20, 5912-1928.
Timm, O., and A. Timmermann, 2007: Simulation of the last 21,000 years using accelerated transient boundary conditions. J. Climate, 20, 4377-4401.
An, S.-I. J.-S. Kug, A. Timmermann, I.-S. Kang, and O. Timm, 2006: The influence of ENSO on the generation of decadal variability in the North Pacific. J. Climate, 20, 667-680.
Pfeiffer, M., O. Timm, W.-C. Dullo, and D. Garbe-Schönberg, 2006: A paired Sr/Ca and d18O record from the Chagos Archipelago: Late twentieth century warming affects rainfall variability in the tropical Indian Ocean. Geology, 34 (12), 1069-1072, doi: 10.1130/G23162A.1.
Timm, O., M. Pfeiffer, and W. Dullo, 2005: Nonstationary ENSO-precipitation teleconnection over the equatorial Indian Ocean documented in a coral from the Chagos Archipelago. Geophys. Res. Lett., 32, L02701, doi:10.1029/2004GL021738.
Zinke, J., M. Pfeiffer, O. Timm, W. Dullo, and G. Davies, 2005: Atmosphere-Ocean Dynamics in the Western Indian Ocean Recorded in Corals. Phil. Trans. R. Soc. Lond., A 363 (1826), doi:10.1098/rsta.2004.1482.
Pfeiffer, M., O. Timm, W. Dullo, and S. Podlech, 2004: Oceanic forcing of interannual and multidecadal climate variability in the southwestern Indian Ocean: Evidence from a 160 year coral isotopic record (La Réunion, 55°E, 21°S). Paleoceanography, 19, PA4006, doi:10.1029/2003PA000964.
Timm, O., E. Ruprecht, and S. Kleppek, 2004: Scale-dependent reconstruction of the NAO index. J. Climate, 17 (11), 2157-2169, doi:10.1175/1520-0442(2004)017<2157:SROTNI>2.0.CO;2.