Friday, October 7, 2011

Can Moon's shadow make Waves in the Atmosphere....?

    As the Moon blots out the Sun during a solar eclipse, the patch of the Earth that is cast into darkness cools. Meanwhile, the surrounding regions continue to receive the full brunt of the Sun's energy.
    This temperature difference causes waves in the atmosphere to build up behind the leading edge of the moon's shadow, like the bow wave of a ship.
   Although scientists have hypothesized about the moon's atmospheric wake since the 1970's, it wasn't until a July 22, 2009 eclipse in Japan and Taiwan that they observed the phenomenon directly.

Read details:

The research was published in Geophysical Research Letters. J. Y. Liu of the National Central University of Taiwan led the research.

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