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Solar Radiation on the Greenland Icesheet

A PolarConnect live event from the field with Jim Pottinger and the team was held on Thursday, 19 August 2010. Access the archive!

Meet the Team

Teacher - James Pottinger

Jim Pottinger's picture
Gateway High School
Monroeville , Pennsylvania
United States

Jim Pottinger’s interest in science began as a young child when he was given the supervised and unsupervised time to experiment with science kits and everyday household items (some explosive, some not!). His passion to study science was passed on to him by great educators during his scholarly journey, from elementary and high school in Mount Pleasant, Pennsylvania to undergrad at California University of Pennsylvania and eventually as a graduate student at the University of Pittsburgh studying beach ridges on St. Catherine’s Island. Today, Mr. Pottinger strives to inspire his students and community to embrace all that science has to offer.

Currently, Mr. Pottinger lives, works, and plays in Southwestern Pennsylvania where he works with gifted students at Gateway School District as a resource teacher and instructs astronomy students online and face-to-face at Westmoreland County Community College. He personally enjoys engineering, geology, and being an eternal student. Jim is currently completing his EdD in Educational Technology Management at Northcentral University with plans of being more involved with educational outreach through the use of technology. He enjoys alpine skiing, mountain biking, and being outdoors with his wife and three children.

Mr. Pottinger enjoys teaching because it involves the opportunity to engage fresh minds and the opportunity to share his excitement and passion about science with others. He hopes that being involved with PolarTREC will inspire other teachers and students to become stewards of the earth by getting involved in projects from the smallest level like recycling at home to larger levels such as being involved in a sustainability group in their communities.

Researcher - Konrad Steffen

Konrad Steffen's picture
CIRES, University of Colorado
Boulder , Colorado
United States

Dr. Konrad Steffen is a professor of geography and the Director of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado at Boulder. His research interests lie in the interactions between climate and snow and ice covered regions, in particular changes in ice sheets and sea level. Dr. Steffen has spent over thirty years conducting research in the arctic, much of which is in Greenland. To learn more about Dr. Steffen, please visit his faculty biography page (http://cires.colorado.edu/people/steffen/).

Researcher - Nicolas Bayou

Nicolas Bayou's picture
University of Colorado at Boulder
Boulder , Colorado
United States

Nicolas (Nikko) Bayou is a PhD graduate student in Geography at the University of Colorado in Boulder. Mr. Bayou's bachelor's degree is in Science, and he has a masters degree in mechanical and aerospace engineering. His science and engineering experiences include modelling aircraft engines, analyzing flight/ground tests with Airbus, and serving as project lead for a business jet engines advance project. Mr. Bayou also co-designed the hull of the Italian team yacht for the America's Cup, an international boat race. Currently he is processing Greenland Climate Network (GC-Net) automatic weather station data in preparation for his thesis.

Journals

August 21, 2010 Goodbye Greenland

Kangerlussuaq Policeman
Goodbye Greenland It was my last full day in Greenland and it had to be a special one. I woke up early, grabbed a bike and rode to the Kantina for a superb Greenlandic breakfast. After fueling up, I immediately headed for the fiord below the airport runway, but on my way I noticed a police officer...

August 20, 2010 Leaving Summit Station

Gear on cargo pallet
Summit Station to Kangerlussuaq The final hours at Summit were exciting yet sad. Many of the staff would be returning home after months of being away. They were very excited. I, on the other hand, was sad to see such a cool experience come to an end. I guess one of the cool things about Summit...

August 19, 2010 Packing up Summit Station

Six-foot high berm at Summit Station
Packing up Summit Station Today, the entire summer crew as well as other staff gave their final goodbyes to Summit Station. It was a busy couple of days, with the crew trying to close and organize the entire station, yet still be functional. One of the big jobs was to build a six-foot high berm to...

August 19, 2010 PolarConnect Event

John Augustine - Meteorologist
 PolarConnect

August 17, 2010 Radiation and Weather at Summit Station, Greenland

Nico on a ladder replacing the sonic sensor.
Radiation and weather at Summit Station, Greenland via BSRN, NOAA and the 50-meter Swiss Tower. Weather conditions:  Temperature High 24 F Low -15 F   Wind-chill 0 to – 30 F

Project Information

BSRN - Compatible Irradiance Measurements and the Stable Boundary Layer
Summit, Greenland
12 August 2010
22 August 2010

Where are They?

The team will live and work at Summit Station, located at the peak of the Greenland ice cap atop 3200 meters of ice. Summit is a scientific research station sponsored by the National Science Foundation that 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. During the summer months the camp is accessed via Kangerlussuaq, a small community located on the west coast of Greenland.

What are they Doing?

Solar radiation is the major energy source that drives our climate and supports life on earth. In this project, the research team hopes to gain a better understanding of the solar radiation reflected back into space and absorbed by our planet, also known as the Earth’s heat balance. The team will collect data related to this balance using weather observing instruments and possibly a specially equipped aircraft to detect wind speed and directions and electromagnetic radiation.

The measurements are part of an international effort to record radiation called the Baseline Surface Radiation Network project. The data collected will be used to further study the Greenland Ice Sheet and it’s processes such as melting and gas exchange with the atmosphere.

Studying heat balance is an important concept in climatology because light surfaces, like snow, reflect more radiation back into space while dark surfaces, like water, absorb more radiation. When you have snow cover, about 90% of the solar energy that goes through the atmosphere is reflected back into space. But increasing the amount of water on the Ice Sheet causes less radiation to reflect and more heat to be absorbed. This increases the temperature and causes more ice to melt.

Resources

Title Date About Type
Science on the Greenland Ice Sheet with Jim Pottinger 19 August 2010 This PolarConnect Event was held on 19 August 2010 with PolarTREC Teacher, Jim Pottinger, Nicolas... Event