Effect of Solar Eclipse Phenomenon  On Atmospheric Parameters

Edwar Abdul Ahad, Awni

	Effect of Solar Eclipse Phenomenon On Atmospheric Parameters
Al-Mustansiriyah Journal of Science
Article 1, Volume 23, Issue 8, 2012, Pages 207-214
Author
Awni Edwar Abdul Ahad
Abstract
In this research the phenomenon of eclipse has been studied at Baghdad and its effects on some of the meteorological parameters as a Response to the phenomenon. The totally eclipse on 11 August 1999 at Baghdad has taken, in addition to the analysis of Atmospheric gravity waves which arise as a result of the eclipse at the bottom of the atmosphere, and via by collisions with air molecules with charged particles its trace in the ionosphere called “The Traveling Ionospheric Disturbances” (TIDs), at a Japanese town “Okinawa” during the solar eclipse on 22 July 2009 ionospheric data have been taken and studied. A decline in the value of solar radiation during the period of the phenomenon, as well as significantly decrease in surface Temperature up to 5 ˚C and showed a response time to the phenomenon after (30) minutes, There were Noticed that no direct response to changes in air pressure during solar eclipse, while relative humidity Was decreased. Wind speed increases to a high value directly during eclipse reached a value up to 10.2 m/ s, Results of Ionospheric layers critical frequencies for “Okinawa” have shown a wave-like structures with a phase shift which it may be as a result of the presence of gravity waves accompanying the phenomenon during solar eclipse. the Vertical component of TIDs speed was about 12 m/s. A decrease in the ionospheric layers virtual heights has been recorded

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