Left to right, back row: Ben Riddell-Young, Ed Brook, Abby Hudack, Sierra Smith, Olivia Williams, Kaden Martin
front row: Julia Marks Peterson, Kathleen Wendt, Christo Buizert

PI: Ed Brook (Professor)

My research uses geochemistry to understand earth history.  Our group focuses primarily on the history of the atmospheric greenhouse gases and links to climate change, with occasionally forays in to dating glacial deposits and studying extraterrestrial dust in ice.  We work on deep ice core projects with colleagues around the world, and on novel records from ablation zones on the Greenland and Antarctic ice sheets.  Our group builds analytical equipment for ice core analysis (and works hard to keep it running).

Christo Buizert (Associate Professor)

My work aims to reconstruct and understand past climate change and atmospheric composition, using deep ice cores from Greenland and Antarctica. I combine numerical modeling, data analysis, ice core measurements and field work to achieve those goals. My work includes reconstructing Greenland climate, investigating inter-hemispheric climate coupling, ice core time scales and dating, and firn processes.

Mike Kalk (Lab Manager)

 Mike began working as the lab technician in 2008 after finishing a masters degree in geology. His primary responsibilities include measuring trace gases from ice cores using gas chromatography, data management, assisting students and post-docs with technical aspects of research, method development, curating ice cores, maintaining lab facilities, and assisting with daily operations of the lab. He occasionally assists with fieldwork. When he is not working Mike enjoys spending time with his family and running with his Australian shepherd, Ned, on the local trails.

Asmita Banerjee, Postdoc

Howdy! I’m a postdoc in the OSU Ice Core Lab. My work involves building a Continuous Flow Analysis (CFA) system here at OSU to obtain high resolution measurements of methane, chemistry, water isotopes and dust concentrations from old ice cores drilled as part of the Center for the Oldest Ice Exploration (COLDEX) project. Before coming to OSU, I got my PhD at Rice University, Houston. I investigated changes in atmospheric dynamics and trace gases (particularly ozone) on glacial-interglacial timescales. To do so, I worked on applying a novel stable isotope tracer, clumped isotopes of oxygen, on the ice core gas record. In my free time, I enjoy backpacking, riding my bike and learning to cook food from different parts of the world!

Benjamin Riddell-Young, Graduate Student

Hi all, I’m a graduate student in the OSU Ice Core Lab studying the past biogeochemical dynamics of methane, a potent greenhouse gas.  By measuring the isotopic ratios and geographic distribution of atmospheric methane trapped in ice cores, we can constrain the causes of past abrupt changes in concentration and climate.  The goal is to use this improved understanding as a predictor for how Earth’s climate system might respond to current warming, especially because many modern methane reservoirs are considered unstable.  Before moving to Oregon, I obtained a B.S. in Environmental Science at the University of Rochester, where I studied modern methane dynamics in freshwater lakes and coastal regions.  In my free time, I enjoy backpacking, skiing, rock climbing, and woodworking.

Kaden Martin, Graduate Student

Hello! I’m a PhD student in the OSU Ice Core Lab. My research will investigate the modes of abrupt climate change during the Earth’s past by examining the variations of atmospheric gases in a Greenland ice core. This work will produce a high-resolution record of methane and isotopic nitrogen from the GISP2 ice core. By developing an improved record of methane and isotopic nitrogen, the data can be used to accurately identify and discover new climate responses to Heinrich and Dansgaard-Oeschger events. Before joining the OSU Ice Core Lab, I completed my B.S. degrees in Applied Physics and Earth System Science at the University of California, Irvine. At UCI, I investigated how the variability of a biogenic sulfur compound in a South Pole ice core related to modes of climate variability.

Olivia Williams, Graduate Student

I’m a PhD student in the OSU ice core lab studying past melting events. By looking at the concentrations of water-soluble elements in ice, we can determine when liquid water was present and thus determine when melting occurred. This record will help us understand what causes melting and what extent of melting we may see in the future. Before I came to OSU, I got my B.A. in Earth & Environmental Science and English at Boston University, where I studied silica cycling in coastal salt marshes. Outside the lab, I enjoy tabletop games, baking, and creative writing.

Julia Marks Peterson, Graduate Student

I am a PhD student in the ice core lab and love to spend my time thinking about what ice cores can tell us about past climate, particularly about the carbon cycle. I measure concentrations of greenhouse gases and stable isotopes of carbon dioxide from the gases trapped in ice. I am part of the Center for Oldest Ice Exploration (COLDEX) and am working toward extending our carbon dioxide record further into the past. Before joining the lab, I completed a master’s in teaching and taught middle school science in Seattle. Before teaching, I obtained my undergraduate degree from the University of Washington in oceanography and political science. I am passionate about making science accessible to the public and love doing community outreach!

Abby Hudak, Graduate student

I am a Ph.D. student interested in understanding past climate, particularly climate over one million years ago. As a researcher on the COLDEX project, I am excited to investigate greenhouse gases and dust concentrations within old ice from Antarctica to learn about climate dynamics of the past and what it might tell us about our current climate state. Before coming to OSU, I received a B.S. and M.S. in biology and worked for a couple of years as a data analyst. Somewhere along the grapevine, I fell in love with paleoclimate and polar research, and am so excited to be researching ice cores.

Emily Rice, Undergraduate researcher

Hello! I am an undergrad student at OSU majoring in Earth Science with a Climate Science focus. In the Ice Core Lab, I am studying past concentrations of nitrous oxide, an important greenhouse gas. I am working with a new ice core from Allan Hills, Antarctica to establish a nitrous oxide record for the second-to-last ice age and subsequent deglaciation. This research will contribute to our understanding of how nitrous oxide emissions vary as the climate changes. Outside of the lab, my hobbies include rock climbing, American Ninja Warrior training, playing the guitar, and creative writing.

Sofia Tjioe, Undergraduate researcher

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