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[Music]

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[Thunder]

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>>What we're primarily
 interested in studying

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is looking at the impact
 on the chemistry

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of the stratosphere
 from convection.

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>>There's  these big storm
events

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that can happen in the summer
 that can loft plumes of air

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from the troposphere
 into the stratosphere.

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>>How many mineral dust
 particles are there?

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How many smoke particles
 are there?

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>>Halogenated species

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such as dichloromethane
 and chloroform....

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>>Inorganic

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halogen compounds

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>>We measure
 N2O and SF6, sulfur

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hexafluoride

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>>Pollutants
 and other chemicals

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from low down in the boundary
layer where we live...

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>>And we care about the

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particles in the stratosphere
 because it affects the

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radiation

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and the ozone layer.

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[Music]

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[Jet taking off]

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>>We're

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interested in how with changes
 in convection and thunderstorms

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whether they get bigger
 with climate change,