@misc{MuellerTjallingiiPlocienniketal.2021,
  author    = {M{\"u}ller, Daniela and Tjallingii, Rik and Plociennik, Mateusz and Luoto, Tomi P. and Kotrys, Bartosz and Plessen, Birgit and Ramisch, Arne and Schwab, Markus Julius and Blaszkiewicz, Miroslaw and Slowinski, Michal and Brauer, Achim},
  title     = {New insights into lake responses to rapid climate change},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  number    = {2},
  issn      = {0300-9483},
  doi       = {10.25932/publishup-56338},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-563386},
  pages     = {23},
  year      = {2021},
  abstract  = {The sediment profile from Lake Goscia(z) over dot in central Poland comprises a continuous, seasonally resolved and exceptionally well-preserved archive of the Younger Dryas (YD) climate variation. This provides a unique opportunity for detailed investigation of lake system responses during periods of rapid climate cooling (YD onset) and warming (YD termination). The new varve record of Lake Goscia(z) over dot presented here spans 1662 years from the late Allerod (AL) to the early Preboreal (PB). Microscopic varve counting provides an independent chronology with a YD duration of 1149+14/-22 years, which confirms previous results of 1140 +/- 40 years. We link stable oxygen isotopes and chironomid-based air temperature reconstructions with the response of various geochemical and varve microfacies proxies especially focusing on the onset and termination of the YD. Cooling at the YD onset lasted similar to 180 years, which is about a century longer than the terminal warming that was completed in similar to 70 years. During the AL/YD transition, environmental proxy data lagged the onset of cooling by similar to 90 years and revealed an increase of lake productivity and internal lake re-suspension as well as slightly higher detrital sediment input. In contrast, rapid warming and environmental changes during the YD/PB transition occurred simultaneously. However, initial changes such as declining diatom deposition and detrital input occurred already a few centuries before the rapid warming at the YD/PB transition. These environmental changes likely reflect a gradual increase in summer air temperatures already during the YD. Our data indicate complex and differing environmental responses to the major climate changes related to the YD, which involve different proxy sensitivities and threshold processes.},
  language  = {en}
}
@misc{RachKahmenBraueretal.2017,
  author    = {Rach, Oliver and Kahmen, Ansgar and Brauer, Achim and Sachse, Dirk},
  title     = {A dual-biomarker approach for quantification of changes in relative humidity from sedimentary lipid D/H ratios},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  number    = {660},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-41873},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-418731},
  pages     = {17},
  year      = {2017},
  abstract  = {Past climatic change can be reconstructed from sedimentary archives by a number of proxies. However, few methods exist to directly estimate hydrological changes and even fewer result in quantitative data, impeding our understanding of the timing, magnitude and mechanisms of hydrological changes. Here we present a novel approach based on delta H-2 values of sedimentary lipid biomarkers in combination with plant physiological modeling to extract quantitative information on past changes in relative humidity. Our initial application to an annually laminated lacustrine sediment sequence from western Europe deposited during the Younger Dryas cold period revealed relative humidity changes of up to 15\% over sub-centennial timescales, leading to major ecosystem changes, in agreement with palynological data from the region. We show that by combining organic geochemical methods and mechanistic plant physiological models on well characterized lacustrine archives it is possible to extract quantitative ecohydrological parameters from sedimentary lipid biomarker delta H-2 data.},
  language  = {en}
}