Lake El'gygytgyn (67.5º N, 172º E) is one of the best preserved large asteroid impact craters on earth. In the winter of 2009, I joined an international science team and traveled to the frozen arctic lake to drill and extract lake sediments to study climate change as well as sample the rocks that were changed when the crater
The sediment in Lake El'gygytgyn, (pronounced EL-ge-GIT-gin) located in NE Siberia, holds one of the longest records of climate change anywhere in the continental Arctic. How does sediment (clay and mud) tell us something about past climate? Proxy data! By studying the microfossils of diatoms and pollen in the sediment, we can re-construct the lake environment millions of
Lake El'gygytgyn (also called, Lake E) permafrost drilling started in mid-November of 2008. The ICDP (International Continental Drilling Program) is posting news reports and images to this blog several times each week. Check out early reports from Lake E.
IPY marks the beginning of a sustained effort to understand large-scale environmental change in Earth's polar regions, which have major societal and economic impacts, and to advance new scientific frontiers, from the molecular to the planetary scale. NASA brings a unique perspective to IPY, which will focus on five themes: 1) NASA explores scientific frontiers in Earth's polar regions.; 2)
ALISON combines educational and scientific need by
1. supporting teacher professional development and student learning in the local context through the study of those abundant and familiar materials, snow and ice, that
2. creates scientifically valuable data that document the lake ice and conductive heat flow variability in Alaska, and which can be used for evaluating the performance of numerical