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

Chung YS, Kim HS, Choo SH - Air Qual Atmos Health (2010)

Bottom Line: The observed atmospheric effects of the eclipse are presented.Also, during the eclipse, air temperature decreased slightly or remained almost unchanged.Ground-level ozone was observed to decrease during the event.

View Article: PubMed Central - PubMed

Affiliation: Korea Centre for Atmospheric Environment Research, Khangnae, Cheongwon-Cheongju, 363-891 South Korea.

ABSTRACT
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 approximately 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 degrees 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.

No MeSH data available.


Related in: MedlinePlus

Variations of air temperature and relative humidity observed at Cheongwon (KCAER), Korea during the solar eclipse on 22 July 2009
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Fig5: Variations of air temperature and relative humidity observed at Cheongwon (KCAER), Korea during the solar eclipse on 22 July 2009

Mentions: Until 09:00 LST, it was misty and visibility was 4 ∼ 5 km in the Cheongwon area. Observed relative humidity at 09:00 LST was 88% and it went down gradually to 79% at 09:45. When the eclipse was in progress, the relative humidity slowly increased to over 79% until 11:15 LST. From this time on, relative humidity decreased steadily with the increase in radiation and air temperature. Relative humidity depends strongly on the air temperature. This relation is seen in Fig. 5, but is reversely correlated (Hakan 2009). When air temperature was low prior to the eclipse, relative humidity was recorded at a high level. This reverse correlation is also observed after 11:20 LST. During the mid-stage of the eclipse, the changes in relative humidity were in the opposite direction to the changes in air temperature.Fig. 5


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

Chung YS, Kim HS, Choo SH - Air Qual Atmos Health (2010)

Variations of air temperature and relative humidity observed at Cheongwon (KCAER), Korea during the solar eclipse on 22 July 2009
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2914286&req=5

Fig5: Variations of air temperature and relative humidity observed at Cheongwon (KCAER), Korea during the solar eclipse on 22 July 2009
Mentions: Until 09:00 LST, it was misty and visibility was 4 ∼ 5 km in the Cheongwon area. Observed relative humidity at 09:00 LST was 88% and it went down gradually to 79% at 09:45. When the eclipse was in progress, the relative humidity slowly increased to over 79% until 11:15 LST. From this time on, relative humidity decreased steadily with the increase in radiation and air temperature. Relative humidity depends strongly on the air temperature. This relation is seen in Fig. 5, but is reversely correlated (Hakan 2009). When air temperature was low prior to the eclipse, relative humidity was recorded at a high level. This reverse correlation is also observed after 11:20 LST. During the mid-stage of the eclipse, the changes in relative humidity were in the opposite direction to the changes in air temperature.Fig. 5

Bottom Line: The observed atmospheric effects of the eclipse are presented.Also, during the eclipse, air temperature decreased slightly or remained almost unchanged.Ground-level ozone was observed to decrease during the event.

View Article: PubMed Central - PubMed

Affiliation: Korea Centre for Atmospheric Environment Research, Khangnae, Cheongwon-Cheongju, 363-891 South Korea.

ABSTRACT
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 approximately 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 degrees 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.

No MeSH data available.


Related in: MedlinePlus