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Good morning.
This is the twenty-second of March, 2021.
It's four-fifty in the morning.
We are here this early to
load the SPEXone instrument into the truck.
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SPEXOne will measure the intensity and degree of polarization
of light that is reflected by small particles in the atmosphere
These particles are called aerosols
Overall these aerosols counterbalance
the warming by greenhouse gases
but we don't know by what amount.
And because this is so unknown,
it's hard to predict future climate change.
And with SPEXone
we want to accurately
measure the effect of aerosols
on clouds and climate.
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One challenge in building and designing SPEXone
was design of the optical system.
since SPEXone is a multiviewing instrument
We needed to be able to
capture the light from five different directions
into a single, compact instrument
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