The work of professor Bryon Crump, graduate student Natasha Christman, and PolarTREC teacher David Walker is highlighted in the weekly newsletter of the Oregon State University College of Earth, Ocean, and Atmospheric Sciences (On the Horizon).
Ground Penetrating Radar (GPR):
Seeing Below the Surface While Keeping Scientists Safe
Overview
Ground Penetrating Radar (GPR) is a valuable technology that utilizes waves of low frequency electromagnetic radiation to help polar scientists understand what is beneath their feet! Using real field data from the Icelandic glacier Múlajökull, along with a small selection of short videos and web-based resources
Here is a great interview with Dr. Iverson on Iowa Public Radio. He gives an excellent overview of the research, why he has chosen Mulajokull as a location, and the significance of understanding glacial mechanics and movement in light of global climate change.
This article and associated video describe the findings of researchers who undertook core drilling at Lake El’gygytgyn, a lake that sits today inside a basin formed by a meteorite that struck the earth 3.6 million years ago. An associated video allows us to hear the enthusiasm and details as researcher Julie Brigham-Grette describes the findings of this remarkable discovery.
Arctic Research Mapping Application. ARMAP is a suite of online, interactive maps and services that support Arctic science. Learn more about research projects in your region of interest or scientific discipline. Explore available data or possible collaborations. Use the online mapping tools to meet your own project's specific goals.
Summit Station, Greenland Website. The station is located atop 3200 m of ice and is nearly 400 km from the nearest point of land. Summit supports a diversity of scientific research, including year-round measurements of air-snow interactions that provide crucial knowledge for interpreting data from deep ice cores drilled both at Summit and elsewhere.
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
In this activity students learn about varves, annual sediment layers found in lakes. Students will analyze authentic varve data from New England in order to correlate data from three different geographic locations .
Objective
Students will analyze authentic varve sediment data and create a graph of varve thickness. Students will use their results to make inferences about