Niels Bohr Institutet > Kalender - det sker på NBI > 2010 > Talk by Thomas Laepple...

Talk by Thomas Laepple, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven

Two talks: Climate variability on orbital timescales: Insights from the modern annual cycle and First results from the NEEM ice core.

Abstract
Earth's climate on long time scales is influenced by orbital insolation forcing. Climate feedbacks and proxy "recorders" modify this orbital signal. I will show that analyzing the modern seasonal cycle of temperature and proxy recorders is very useful for the understanding the Quaternary temperature variability. Applications are the Holocene temperature evolution and the interpretation of the Antarctic ice-core derived temperature record.

In my second talk, I will present preliminary dielectric profiling (DEP) and linescanner data from the deep part of the NEEM ice core. Relations between DEP and climate and the relation of the NGRIP and NEEM DEP record will be discussed.