75 Quaternary Environments of the Eurasian North (Posters)
HOLOCENE CLIMATE OF THE LAPTEV SEA REGION ACCORDING TO THE MODEL AND PALYNOLOGICAL DATA
Paper number: 75-8
Program: SYMPOSIA
Time: 1:30 PM – 4:30 PM
Authors
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Olga D. Naidina Presenting AuthorInstitute of the Lithosphere of Marginal Seas, Russian Academy of Sciences, Moscow, N/A
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Henning A. BauchAcademy of Sci, Humanity and Literature, Mainz, N/A
Abstract
The good chronological framework of cores IK9373, PM9462, PM9499 and PS51/135 from the Laptev Sea provides a first record of the transfer of pollen grains onto the shelf over the Holocene. Major trends in climatically crucial spectra, such as arboreal and herbaceous pollen, are in good chronological accordance with pollen records on land (Naidina and Bauch, 2001). However it is impossible to draw the convincing paleoclimatic conclusions on the data based only on the empirical data. It is necessary to develope mathematical relationships between fossil pollen data and climatic variables. The relationship between the pollen assemblages and the environment can be reduced to a numerical function which can be use in detailed climatic reconstruction. The interpretation of pollen stratigraphy in terms of climate based on palynological facts and the use of climatic model of general circulation of the atmosphere should to help in detailed climatic reconstruction over the Laptev Sea area. In the result of the modelling will be present Arctic Siberia and Laptev Sea region maps of Holocene temperature and precipitation for the different seasons of the year.