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The solar eclipse and associated atmospheric variations observed in South Korea on 22 July 2009

2010; Springer Science+Business Media; Volume: 3; Issue: 3 Linguagem: Inglês

10.1007/s11869-009-0060-0

1873-9326

Yong Seung Chung, Hak‐Sung Kim, Seung Ho Choo,

Atmospheric aerosols and clouds

A partial solar eclipse occurred in South Korea on 22 July 2009. It started at 09:30 a.m. and lasted until 12:14 LST with coverage of between 76.8% and 93.1% of the sun. The observed atmospheric effects of the eclipse are presented. It was found that from the onset of the eclipse, solar radiation was reduced by as much as 88.1 ∼ 89.9% at the present research centre. Also, during the eclipse, air temperature decreased slightly or remained almost unchanged. After the eclipse, however, it rose by 2.5 to 4.5°C at observed stations. Meanwhile, relative humidity increased and wind speeds were lowered by the eclipse. Ground-level ozone was observed to decrease during the event.