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#1
October 6th 05, 03:22 PM
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Excellent wave clouds on Satpic
Extensive wave clouds over Ireland and Scotland shown very well on this
Satpic ... http://en.allmetsat.com/images/noaa_dlr_uk.php Don't appear to be caused by mountains..possibly interaction between different air flows??? Cheers John -- York, North Yorkshire. (c.20 metre AMSL) |
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#2
October 6th 05, 03:50 PM
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Excellent wave clouds on Satpic
"John Whitby" wrote in message ... Extensive wave clouds over Ireland and Scotland shown very well on this Satpic ... http://en.allmetsat.com/images/noaa_dlr_uk.php Don't appear to be caused by mountains..possibly interaction between different air flows??? Cheers John -- York, North Yorkshire. (c.20 metre AMSL) Also of interest is the "vortex" NE of Anglesey. It has similar characteristics of a Von Karmen vortex street. Joe |
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#3
October 6th 05, 03:51 PM
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Excellent wave clouds on Satpic
I raised this very matter recently on my gliding website when in
addition to standard orographic waves, there were apparently wave clouds over the Atlantic with no mountain triggers at all upwind. This comment was made by a glider pilot now living in Australia: "I believe the sort of wave pattern you describe is not uncommon. I've been soaring in West Australia with a Westerly flow and there are literally no triggers for thousands of km yet on an 8000' cu base day the cu slowly aligned cross wind and after a bit of effort I finally got to 15,000' along with 2 other pilots." I don't think this is the same phenomenon as the (slightly) better documented shear wave, but we would all love to find out more. Jack |
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#4
October 6th 05, 04:00 PM
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Excellent wave clouds on Satpic
I wonder what is your reason for saying that the waves do not appear to be
caused by mountains. They are classic orographic waves, caused by the topography, which is hills and mountains. Each train of waves can be traced to an individual peak or ridge, if one has the time. -- Bernard Burton Wokingham, Berkshire, UK. Satellite images at: www.btinternet.com/~wokingham.weather/wwp.html "John Whitby" wrote in message ... Extensive wave clouds over Ireland and Scotland shown very well on this Satpic ... http://en.allmetsat.com/images/noaa_dlr_uk.php Don't appear to be caused by mountains..possibly interaction between different air flows??? Cheers John -- York, North Yorkshire. (c.20 metre AMSL) |
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