Dr. Jung-Hyun Kim         E-mail: jhkim@nioz.nl   Direct Phone: (+31) (0)222-369567 I

ROYAL NETHERLANDS INSTITUTE FOR SEA RESEARCH (NIOZ)   Postal address: P.O. Box 59, NL-1790 AB Den Burg (Texel) The Netherlands   Visiting address: Landsdiep 4 NL-1797 SZ ’t Horntje (Texel) The Netherlands Room: C10-15   Phone (reception): (+31) (0)222-369300 Fax: (+31) (0)222-319674

 

 

General
2009-present	Post-Doctoral research scientist at NIOZ, PACEMAKER project
2006	Invited research scientist at AWI, Germany, October 2006.
2006	Post-Doctoral research scientist at NIOZ, the Netherlands, since March
2005 - 2006	Invited research scientist at CEFREM - CNRS UMR 5110, France, February 2005 - February 2006.
2001 - 2004	Post-Doctoral research scientist at Bremen University and RCOM, Germany.
2003	Invited research scientist at LSCE, France, April - July 2003.
1998 - 2001	PhD at Bremen University, Germany.
1993 - 1998	Lab assistant as student at Bremen University and AWI, Germany.
1995	Geologist for geological mapping at Geologische Bundesanstalt, Austria, May - October 1995
Research Interests
· Validation and application of newly developed lipid biomarker proxies · Terrestrial organic matter transport from the continent to the ocean · Holocene climate variability: data-model comparison · Abrupt climate changes: linkages between high- and low-latitude climate · Paleoproductivity variations in the ocean · Land-ocean interaction: data-model comparison · Indian Ocean-Atlantic connection · Past changes in ocean circulation : data-model comparison · Short and long-term variability of African and Asian monsoonal climate
Tracing the transport of soil organic matter to the ocean by rivers (PACEMAKER-1)
We have shown that branched GDGTs can be used as a tracer for soil organic matter transport for major river systems in Africa (the Congo; Hopmans et al., 2004; Weijers et al., 2007) and Europe (the Rhône; Kim et al., 2006) but this idea needs to be further tested if the MBT/CBT palaeothermometer is to be used with confidence for continental climate reconstruction.   Goals   1)     To determine the BIT indices for marine surface sediments in transects from the river mouth to the open ocean and compare these data with more conventional parameters of terrestrial organic matter input such as C/N ratios and δ13C of OM. 2)     To determine the MBT/CBT indices for marine surface sediments in transects from the river mouth to the open ocean and compare these data with meteorological MAT data and soil pH data of the drainage basin of the river. A major question to be answered is how changes in the topography (and thus MAT) affect the temperature signal of the branched GDGTs. For example, in a pilot study of the Amazone river fan and drainage basin, we have noted that high soil erosion rates in the Andes can result in lower than expected MAT estimates based on the MBT/CBT signal in marine sediments. 3)     To determine branched GDGT fluxes and BIT and MBT/CBT indices in particulate matter (PM) of rivers over the seasonal cycle to investigate possible variations in these signals over time and identify the mechanisms responsible for transporting the continental climate signal to the ocean. 4)     To determine radiocarbon ages of branched GDGTs and crenarchaeol in river water PM and in surface sediments to investigate potential off-sets in age of TEX86 and alkenone SST records and MBT/CBT-derived MAT records. Since branched GDGTs are produced in situ in soils there may be a reservoir effect associated with the delivery of these components to marine sediments which is crucial information for application of the MBT/CBT palaeothermometer in high resolution records.
People involved: Dr. J-H. Kim (post-doc), C.I. Zell (Ph.D student), J. Blokker, Prof. Dr. J.S. Sinninghe Damsté (PI), Dr. E.C. Hopmans
Funding: ERC
Duration: 2009-2011
Related Publications:
Hopmans E.C., Weijers J.W.H., Schefuß E., Herfort L., Sinninghe Damsté J.S., Schouten S. (2004) A novel proxy for terrestrial organic matter in sediments based on branched and isoprenoid tetraether lipids. Earth. Planet. Sci. Lett. 224, 107-116.
Kim J.-H., Schouten S., Buscail R., Ludwig W., Bonnin J., Sinninghe Damsté J.S., Bourrin F. (2006) Origin and distribution of terrestrial organic matter in the NW Mediterranean (Gulf of Lions): Exploring the newly developed BIT index. Geochem. Geophys. Geosyst. 7, Q11017-1-20.
Smittenberg R.H., Hopmans E.C., Schouten S., Hayes J.M., Eglinton T.I., Sinninghe Damsté J.S. (2004) Compound-specific radiocarbon dating of the varved Holocene sedimentary record of Saanich Inlet, Canada. Paleoceanography 19, PA2012-1-16.
Weijers J.W.H., Schefuß E., Schouten S., Sinninghe Damsté J.S. (2007) Coupled thermal and hydrological evolution of tropical Africa over the last deglaciation. Science 315, 1701-1704.
Weijers J.W.H., Schouten S., Schefuss E., Schneider R.R., Sinninghe Damsté J.S. (2009) Disentangling marine, soil and plant organic carbon contributions to continental margin sediments:  a multi-proxy approach in a 20,000 year sediment record from the Congo deep-sea fan. Geochim. Cosmochim. Acta 73, 119-132.
Publications
Brovkin V., Kim J.-H., Hofmann M., and Schneider R. (2008) A lowering effect of recon-structed Holocene changes in sea surface temperatures on the atmospheric CO2 concentration. Global Biogeochem. Cy. 22, GB1016-1-GB1016-8.   Dupont L. M., Kim J.-H., Schneider R. R., and Shi N. (2004) Southwest African climate independent of Atlantic sea surface temperatures during the Younger. Quaternary Res. 61, 318-324.   Huguet, C., Kim, J.H., Sinninghe Damsté, J.S., Schouten, S. (2006) Reconstruction of sea surface temperature variations in the Arabian Sea over the last 23 kyr using organic proxies (TEX86 and UK37'). Paleoceanography 21, 1-13.   Kim J.-H., Dupont l., Behling H., and Versteegh G. J. M. (2005) Impacts of rapid sea-level rise on mangrove deposit erosion: application of taraxerol and Rhizophora records. J. Quarternary Sci. 20, 221-225.   Kim J.-H., Ludwig W., Schouten S., Kerhervé P., Herfort L., Bonnin J., and Sinninghe Damsté J. S. (2007) Impact of flood events on the transport of terrestrial organic matter to the ocean: A study of the Têt River (SW France) using the BIT index. Org. Geochem. 38, 1593-1606.   Kim J.-H., Rimbu N., Lorenz S. J., Lohmann G., Nam S. I., Schouten S., Rühlemann C., and Schneider R. R. (2004) North Pacific and North Atlantic sea-surface temperature variability during the Holocene. Quaternary Sci. Rev. 23, 2141-2154.   Kim J.-H., Schneider R. R., Mulitza S., and Müller P. J. (2003) Reconstruction of SE trade-wind intensity based on sea-surface temperature gradients in the Southeast Atlantic over the last 25 kyr. Geophys. Res. Lett. 30, OCE 1-1-OCE 1-4.   Kim J.-H., Schouten S., Buscail R., Ludwig W., Bonnin J., Sinninghe Damsté J. S., and Bourrin F. (2006) Origin and distribution of terrestrial organic matter in the NW Mediterranean (Gulf of Lions): Exploring the newly developed BIT index. Geochem. Geophy. Geosy. 7, 1-20.   Kim J.-H., Schouten S., Hopmans E. C., Donner B., and Sinninghe Damsté J. S. (2008) Global sediment core-top calibration of the TEX86 paleothermometer in the ocean. Geochim. Cosmochim. Acta 72, 1154-1173.   Lee K. E., Kim J.-H., Wilke I., Helmke P., and Schouten S. (2008) A study of the alkenone, TEX86, and planktonic foraminifera in the Benguela Upwelling System: Implications for past sea surface temperature estimates. Geochem. Geophy. Geosy. 9, 1-19.   Lorenz S. J., Kim J.-H., Rimbu N., Schneider R. R., and Lohmann G. (2006) Orbitally driven insolation forcing on Holocene climate trends: Evidence from alkenone data and climate modeling. Paleoceanography 21, PA1002-1-PA1002-14.