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| Summit, Greenland - Research Project |
Snow Photochemistry Experiment
18 April - 6 May 2004
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A team of 12 scientists will be working at Summit, Greenland
to find out how sunlight-initiated reactions in the snow affect the composition
of the snow and the atmosphere above it. These sunlight-driven reactions
in snow release a number of pollutants to the lower atmosphere, including
formaldehyde, nitrous acid, and reactive halogens. In turn, these pollutants
alter the composition and chemistry in the lower atmosphere. In order to
help understand how air quality in snow-covered regions is affected by
these reactions, Nikki and the research team will be sampling and analyzing
reactive chemicals in the snow and in the air, measuring the sunlight in
the snowpack, and determining physical properties of the snow.
Researcher
Web Diary Website: Click here for
journals and pictures from the research team. |
Approximately 84% of Greenland is covered in snow and ice,
making it the world's second largest icecap (after Antarctica ). The research
station at Summit is at the peak of the Greenland ice sheet – an
altitude of 10,500 feet --where the snow never melts. In fact, it accumulates
by approximately 2 feet per year and is nearly 2 miles thick in some places.
Typical temperatures during this spring expedition will be about –50C
(-58F).
Summit
Snow Chemistry Home Page: Click here to
learn more about the 20-member research team, the research project, Greenland
facts, and more. |
Meet the Teacher:
Nikki Airaudi teaches 8th grade earth science at Kewaskum
Middle School in Wisconsin. Nikki has been recognized by the Kewaskum School
Board for her outstanding instructional achievements, and her past research
experiences include participation in the JASON
Project,
a program of experience-based curriculum and professional learning for
science educators. By participating in TREC, Nikki aims to expand her knowledge
of the Arctic, enhance her science instruction and strengthen the connection
between classroom lessons and real world science. Learn more about Nikki
and her TREC experiences through the "Researchers'
Journals," "Teachers'
Journals," "Ask
the Teacher," and "Photo
Album" links in the Summit,
Greenland menu to the left. |
Meet the Researcher:
Jack Dibb specializes in atmospheric chemistry and the
chemistry of air-snow exchange at the Climate Change Research Center
at the University of New Hampshire. Jack has been going to Summit every
year since 1989 with funding from the National Science Foundation. This
season, Jack will be leading a team of researchers who will be on the
Greenland ice sheet from mid March to early May. Jack and the research
team are looking forward to interacting with Nikki to reach students
and teachers at Nikki’s home school as well as the seven other schools
that will be interacting with the team this year. Click here to earn
more about Jack and his research. |
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