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Good morning.

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This is the twenty-second of March, 2021. 

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It's four-fifty in the morning. 

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We are here this early to 

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load the SPEXone instrument into the truck.

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(music)


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SPEXOne will measure the intensity and degree of polarization

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of light that is reflected by small particles in the atmosphere

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These particles are called aerosols

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Overall these aerosols counterbalance

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the warming by greenhouse gases

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but we don't know by what amount.

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And because this is so unknown, 

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it's hard to predict future climate change.

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And with SPEXone

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we want to accurately 

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measure the effect of aerosols

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on clouds and climate.

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One challenge in building and designing SPEXone


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was design of the optical system.

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since SPEXone is a multiviewing instrument

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We needed to be able to 

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capture the light from five different directions

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into a single, compact instrument

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