Environmental Science
The aurora is produced by:

Reflections of sunlight by polar ice fields
The combination of molecular and atomic oxygen to form ozone
Fast-moving charged particles colliding with air molecules
Scattering of sunlight in the upper atmosphere
Burning oxygen caused by the intense sunlight at high altitude

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Environmental Science
Assuming that the night will remain clear, calm, and unsaturated, the predicted minimum temperature is 32oF. Suddenly the wind speed increases and remains gusty throughout the night. The minimum temperature will most likely be:

About the same as predicted but will occur earlier in the night
Higher than predicted due to the release of latent heat
Much lower than predicted due to radiational cooling
Higher than predicted due to mixing

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