AIM's Cosmic Dust Experiment and Cloud Formation
Like clouds in other parts of the atmosphere, one element required for polar mesospheric clouds to form is tiny dust particles on which water vapor can accumulate and grow into ice crystals. Nearer to Earth's surface, clouds form from 'cloud condensation nuclei' that can be sea salt spray, desert dust, or other materials lofted from the surface. In the mesosphere it is thought that cosmic dust particles falling into the Earth's atmosphere might serve this same purpose, and the Cosmic Dust Experiment instrument on the Aeronomy of Ice Mission will be able to identify how important cosmic dust particles are in the lifecycle of these clouds.
This animation illustrates how dust particles with ice crystals form mesospheric clouds.
Credits
Please give credit for this item to:
NASA/Goddard Space Flight Center Conceptual Image Lab
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Animator
- Susan Twardy (HTSI)
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Scientists
- James M. Russell (Hampton University)
- Scott Bailey (Virginia Tech)
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Writer
- Stefanie Misztal (UMBC)
Release date
This page was originally published on Monday, September 3, 2007.
This page was last updated on Wednesday, May 3, 2023 at 1:55 PM EDT.