From: Mike Lorrey (mlorrey@yahoo.com)
Date: Thu Aug 08 2002 - 17:14:18 MDT
--- Amara Graps <amara@amara.com> wrote:
>
> Greetings, Extropes!
> What I was impressed the most this year at our GUCS meeting was the
> fine
> level at which we are able to distinguish sources of dust. It used to
> be
> 10-20 years ago, that dust was dust, and we could not say very well
> from
> where the dust came. Now, from experiments and modeling work, we can
> identify dust from...
THis is very intersting, Amara. My cousin did a similar thing with
snowpack in Maine one weekend a few years ago, taking very fine samples
of snow from atop Sugarloaf Mountain, where he dug a snow pit, and
chemically examining each sample for gas and dust composition, to the
point where he developed a model to describe the geographic and
climatological origins of each of the storms that dropped the snow in
that location over the entire winter. This very discrete form of snow
analysis he plans on applying to future expeditions to Antarctica. The
implications for climatological studies are of course enormous, which
is why he is moving to New Zealand to get his doctorate in Climatology
(any Kiwis who are of the welcoming sort are encouraged to welcome
him).
While tree ring data and ice analysis to date have been used to
estimate annual climate information, nobody has really tried to use the
information more discretely to determine where the weather that created
that local climate came from, outside of a few attempts to correlate
specific volcanic eruptions with climate changes. Going from using the
info to create a climate record to creating a weather record thousands
or even millions of years long is immensely valuable.
Your work is similar, it seems, though astronomically oriented. Given
that astronomical phenomena seem to have a huge impact over the long
term on Earth's climate, I imagine that your work is of similar value
to the geosciences.
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