Wpływ całkowitego zaćmienia Słońca na wartości wybranych elementów meteorologicznych w miejscowości Side w Turcji w dniu 29 marca 2006 r.
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Date
2007
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Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk
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Abstract
The eclipse of 29th March 2006 was the last
total eclipse in two nearest decades which was
easy to be observed by europeans. The path of
totality crossed Turkey, where main meteorological
elements were measured. Those were: air
temperature at 150 cm, relative humidity at 150 cm
and global solar radiation. Also observations of
cloudiness and wind speed were made. The
weather conditions during the eclipse were very
good.
The solar eclipse caused in the observing
site (Side) a dramatic change in illumination
and amount of reaching radiation. In period of
77 minutes global solar radiation dropped from
nearly 1000 W/m2 to 0. As a result of it temperature
drop was 4.3°C (Tmax1 = 22.1°C; Tmin =
17.8°C). After the maximum phase the temperature
rised at 4.5°C (Tmax2 = 22.3°C). The minimum
of air temperature occurred with a dozen
minutes delay, a similar shift was observed on
3rd October 2005 during annular solar eclipse in
Spain. A radiation drop also caused a change in
relative humidity, which reached maximum
(62.1%) when temperature touched the lowest
measured value. Daily amplitude of relative
humidity was 27.5%. Local variations of air
pressure could be a cause of gradual rise of
wind speed and also its drop during a total
phase of eclipse. Change of wind direction may
be explained by influence of Moon’s shadow
but also as an effect of regular breeze circulation.
Cloudiness begun to increase just after
the beginning of the first partial phase and soon
before the end of the second partial phase it
became stable at level of 3/8. High level clouds
dominated.
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Badania Fizjograficzne, Seria A, Tom 58, 2007, s. 133-148
ISBN
978-83-7063-538-1