24 April, 2002
Why wear thin latex gloves and collect snow in
Ziploc bags??? Class 2 chemical samples are
collected to be later analyzed in a laboratory
for chemical components in the snow. Ions such
as Magnesium, Calcium and Iron will be tested for
in the snow samples. It will take months for the
samples to be analyzed and results to be
recorded.
The goal behind performing the Class 2 samples is
to determine where the snow originates from in
Alaska. Weather patterns are still not fully
understood in Alaska. It is not clear whether
the same storm patterns affect the area north and
South of the Brooks Range. Our traverse sampled
snow in these regions to better understand its
origination.
Evaporation of water molecules from the ocean
will also transport ions that are components in
the salt water. Different oceans have different
chemical components. An ocean may have a
different percentage of Magnesium ions verses
another ocean. When it precipitates, these ions
will be distributed into the snow pack. By
performing Class 2 chemical sampling, the snow
can be tested for these ions. This in turn will
help better understand the weather patterns in
Alaska and the Arctic.
WHERE IS MRS. CHEUVRONT??? LET'S PLOT!!!!
Atqasuk!
Latitude: 70.47963 degrees North
Longitude: 157.41816 degrees West
A warm day of snow science!!! Today was the
warmest day we have had since Council. The wind
blew slightly and we were dusted with snow. The
warmth felt misplaced and unusual.
Our SnowSTAR 2002 trip is coming to a close.
Today, we finished our last two complete sites.
Our last light attenuation and pentatrometer
measurements were taken. Two abbreviated sites
were also taken. The beauty and simplicity of
working out of a warm house is that we can travel
10-15 miles out of Atqasuk and perform the
measurements and later return to a warm house.
It makes life simpler. However, the struggles
and beauty of tent life is lost. The intimacy
with the Arctic cold is lost. Tomorrow, the team
will leave Atqasuk and make our last stretch to
Barrow. The finish line is in sight.
Temperature min: -18 degrees Celsius
Temperature max: -5 degrees Celsius
Glen and I taking Class 2 Chemical samples.
Our house in Atqasuk.
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