Abstract ATM-9816317 Mock, Carey University of Oregon Title: Late Quaternary Climate of Northeast Asia: Temporal and Spatial Variability This award supports a project designed to improve the understanding of late Quaternary climatic systems of the subarctic by documenting spatial and temporal variations in climates of the last 18,000 radiocarbon years for NE Asia, describing millennial and centennial scale mechanisms that can account for the observed paleoclimatic changes, and comparing results from NE Asia to other regions (e.g., SE Asia, NW North America, North Atlantic) to obtain a more holistic view of the inter-relationships of regional climatic systems. Overall research goals will be accomplished by: 1) reconstructing past climates through the collection and analysis of modern and ancient botanical, geochemical, and diatom data preserved in lake sediments; 2) developing high quality chronologies using improved radiocarbon techniques; 3) examining modern synoptic climatic patterns and general circulation model simulations identify possible causes of climatic change; 4) comparing the proxy- and model-based paleoclimatic interpretations to assess the most likely mechanisms behind the observed climatic histories; and 5) exploring possible hemispheric scale linkages associated with Milankovitch and sub-Milankovitch scale event.
