Update
Now Archived! PolarConnect event with Steve Kirsche and researchers Ian Baker and Eric Wagner from Summit Station in Greenland on Tuesday, 20 June 2017. You can access this and other events on the PolarConnect Archives site.
What Are They Doing?
We will drill an 80-meter firn core at Summit, Greenland and transport it to Dartmouth University. After the field expedition, Steve will work with the team at the university, where we will perform experiments to observe changes based on temperature and stress (due to depth and load). In addition to observing the microstructure as a whole, we can follow the evolution of ice crystals to observe bond formation and bond-breaking under load in detail, as undertaken in some prior studies on snow.
Our project will aid in the understanding of firn and ice microstructure evolution in polar ice sheets. This will aid in understanding ice flow and interpreting paleoclimate reconstruction from ice cores.
Where Are They?
Expedition Map
Steve graduated from Rensselaer Polytechnic Institute with a degree in electrical engineering. He then served as a Surface Warfare Officer in the US Navy before becoming a stay at home dad while his wife completed her service in the Navy. After her retirement, he was excited to become a science teacher so he could pass on his love of science to his students. Steve teaches comprehensive and physical science to 7th and 8th grade students at Liberty Pines Academy in St. Johns, Florida where he has taught for five and a half years. He has taken part in programs with several organizations and corporations over the past three years to try to offer more robust STEM opportunities to his students. When not in the classroom, he coaches his school's cross country and robotics teams and enjoys running, spending time with his family, and geocaching.
Ian has been on the Faculty at the Thayer School of Engineering, Dartmouth College for 34 years. He has been working on the structure, chemistry, and properties of snow, firn, and ice cores for the last 30 years. This work has ranged from fundamental studies of defect behavior in ice, studied using synchrotron X-ray topography, to studies of impurity locations in firn and ice cores and the metamorphism of snow.
Eric Wagner is currently an Engineering PhD student at Dartmouth College in Hanover, NH. His research focuses on the microstructure of firn and the mechanics of firn evolution. This is of interest in determining how firn evolution contributes to ice sheet fabric development and interpretation of paleoclimate data where coarse-grained and fine-grained firn exhibit different pore close-off depths. When not in the lab, he enjoys hiking, biking and skiing.
