Palaeoclimatology

PalaeoclimatologyDr. Mara Weinelt | Tel. 880.4618 | Room: 011 | Consultation Hours: by arrangement

Profile page on the website of the graduate school

Maria Weinelt has filled the post of scientific coordinator of the graduate school for "Human Development in Landscapes" since April 2008.

⇐ Professorship of Prehistoric Archaeology

After studying Geology-Paleontology in Tübingen she did her doctorate in SFB 313 on the topic: "Veränderungen der Oberflächenzirkulation im Europäischen Nordmeer während der letzten 60.000 Jahre - Hinweise aus stabilen Isotopen" (Changes in surface circulation of the Norwegian Sea during the past 60,000 years - clues from stable isotopes) in the research group of Prof. Dr. M. Sarnthein. As assistant and chief assistant in Micropalaeontology she was part of many Palaeoclimatological projects. 

2004 habilitation (title of the habilitation dissertation: Zur säkulären Veränderlichkeit der Deckschicht im Nördlichen Nordatlantik im letzten Eiszeitzyklus (On the secular variability of the top layer of the Northern North Atlantic during the cycle of the last ice age)). 

From February 2006 to March 2008 Maria Weinelt was the academic councilor in the CAUs research department for the application of the excellence cluster "the future ocean" and was head of the established Unit 25.

Palaeoclimatological Research Focus

Her general scientific interests are in unraveling the late quarter climate history from high definition marine climate archives. At the foreground there is a better understanding of fast changing climates on multidecadial timescales which are comparable to anthropogenical climate change through quantitative reconstructions of quarterly climate scenarios which can be used as analogs for future climate changes. 

Encompassing special goals

The quantifiable reconstruction of marine climatic variables (palaeotemperatures, -salinities, -densities, sea ice cover, -productivity, CO2- pressure in surface water) through geochemical signatures in shells of foraminiferas and micropalaeontological approaches. 

The development of quantifiable “proxies” with stable isotopes, trace metals micropalaeontological approaches. And particularly a better understanding for geochemical signal formation in chalk-shelled microorganisms as basis for a new generation of more precise palaeoenvironmental proxies with an eye on developing new high definition climate archives.

The reconstruction of the stability of Atlantic meridional "overturning" circulation (AMOC) during the Holocene and early interglacial period as potential analogs for future global warming scenarios.

Global and regional reconstructions of high glacial sea surface data and providing reconstructions for the validation and initialization of climate models.

Understanding of the palaeoecology and evolution of foraminifera as the most important carrier of geochemical signals in marine sediments.

Better understanding of marine ?18O, ?13C cycles: The role of marine plancton in the global CO2 cycle.

Understanding of palaeoecology and the evolution of planktonic foraminifera as important carriers of geochemical signals in marine sediments. A better understanding of marine 18O and 13C cycles: role of marine plankton for the global CO2 cycle. Understanding of the part of ocean passages for ocean circulation, climate and evolution. Beginning and development of North Atlantic thermohaline circulation during the Oligocene/Miocene and development during the glaciation of the northern hemisphere.

Projects with third-party funding since 2006

WE 2679-41: The Transpolar Gateways. (31.000€, 05/06-05/07)

Impact of Gateways on Ocean Circulation, Climate, and Evolution (TP-B1-Denmark-Strait) Co-PI, DFG-Forschergruppe 451.

WE2679/51: Evolution of Pliocene paleoceanograpy in the subpolar Northwest Atlantic during the onset of Northern Hemisphere Glaciation (NHG); DFG, IODP Schwerpunkt (05-07/07) 

WE 2679-61: IP03/AMOCINT (=Atlantic Meridional Overturning Circulation during Interglacials)-, ESF-EUROMARC-Projekt (Koordination Eystein Jansen, Bergen), running time(12/07-12/10)

List of publications by M. Weinelt (Updated 2008)