Have
you ever seen wave? And have you ever seen clouds? Have you ever imagine if
clouds are looks like waves? Morning Glory is natural phenomenon which clouds
are looks like waves in the sky. It’s rarely appear but it can be observed in
north of Carpentaria Bay, Australia. Morning glory clouds some times looks like
“Tsunami” because of it looks like huge wave and more looks like when it appear
above sea, beach, and places which close with sea.
It’s
seems like waves and very long up to 1000 kilometres. It’s in height 1 up to 2
kilometres. Sometimes it can be in 100 or 200 meters above earth surface. It’s
moving and can appear on whole of the world including Indonesia. It’s moving
about 60 kilometres/hour.
GMS satellite image of the gulf
region at 0832 EST on 9 Oct (2232 UTC 8 Oct). The four sets of cloud lines
identified are the north Australian cloud line (NACL), the southerly morning
glory (SMG), a southeasterly morning glory (SEMG), and a northeasterly morning
glory (NEMG) (www.meteo.physik.uni-muenchen.de)
Schematic of the vertical
structure of a morning glory disturbance. The bore is propagating from right to
left. The airflow relative to the bore is from left to right. The morning glory
clouds form as air ascends ahead of each wave and they evaporate as air
descends behind each wave.The continuous formation of cloud at the leading edge of the wave gives the appearance that the clouds are rotating and for this reason, the clouds are often referred to as "roll clouds".(www.meteo.physik.uni-muenchen.de)
Scientists
have not know certainly why it happen. But, several people sure that Morning
Glory Clouds happened becausewest wind which warm and faster than east wind
blow and roll the east wind. It commonly accurs in October It firstly known and
reported by
Royal Australian Air
Force pilots in 1942.
Aerial photographs of the morning
glory of 24 Oct 2006 between Karumba and Sweers Island. (www.meteo.physik.uni-muenchen.de)
Garrawa Aboriginal people called this
phenomenon with “kangolgi”.
If you browsing it on internet,
you may found many topics about morning glory in Australia. It because the
morning glory often appeared and observed in Australia.
Some people doing atracting sport
arround this phenomenon and key to an indescribable experience for
extreme gliders. Some brave soarers are flying aroud the clouds with
their engine switched off.
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