Dr. Johannes Hepp
Ehemaliger Doktorand (DBU fellowship)
Doktorarbeit
Entwicklung eines neuen Klima-Proxies anhand von substanzspezifischen δ18O-Isotopenanalysen an n-Alkanol-Lipidbiomarkern.
Betreuer: Dr. Michael Zech, Prof. Dr. Bruno Glaser
Arbeitsschwerpunkte
Isotopenanalytik, Biomarker, Pflanzenphysiologie, Bodengeographie, Löss-Paläoboden-Sequenzen, Klimarekonstruktion
Projekte
- DBU Stipendium
Die Alkanol Alternative: Entwicklung eines neuen Klima- Proxies anhand von substanzspezifischen δ18O-Isotopenanalysen an n- Alkanol-Lipidbiomarkern.
Johnnes Hepp, Michael Zech, Bruno Glaser, Roland Zech, Christoph Mayr
Publikationen
- Hepp J, Wüthrich L, Bromm T, Bliedtner M, Schäfer IK, Glaser B, Rozanski K, Sirocko F, Zech R, and Zech M (2018) How dry was the Younger Dryas? Evidence from a coupled δ2Hδ18O biomarker paleohygrometer, applied to the Lake Gemündener Maar sediments, Western Eifel, Germany. Climate of the Past Discussions, doi: 10.5194/cp-2018-114.
- Hepp J, Zech R, Rozanski K, Tuthorn M, Glaser B, Greule M, Keppler F, Huang Y, Zech W and Zech M,(2017) Late Quaternary relative humidity changes from Mt. Kilimanjaro,based on a coupled 2H-18O biomarker paleohygrometer approach. Quaternary International: 1-15, doi: 10.1016/j.quaint.2017.03.059
- Hepp J, Rabus M, Anhäuser T, Bromm T, Laforsch C, Sirocko F,Glaser B and Zech M (2016) A sugar biomarker proxy for assessing terrestrial versus aquatic sedimentary input. Organic Geochemistry 98: 98-104, doi:10.1016/j.orggeochem.2016.05.012
- Hepp J, Tuthorn M, Zech R, Mügler I, Schlütz F, Zech W and Zech M (2015) Reconstructing lake evaporation history and the isotopic composition of precipitation by a coupled δ18O-δ2H biomarker approach. Journal of Hydrology 529(2): 622-631, doi:10.1016/j.jhydrol.2014.10.012