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Originally posted by whereismyfather
reply to post by OzWeatherman
Please do
Originally posted by Phage
reply to post by ChemBreather
Contrails are contrails. Aircraft fly at different altitudes and there are different conditions at different altitudes. The air at one altitude may not be cold enough or humid enough for a contrail to form at all, or if it does form, to last very long. A bit higher the air can be much colder and more humid, allowing contrails to form easily, persist, and spread.
[edit on 12/8/2009 by Phage]
Originally posted by vermonster
What are they when they turn into clouds?
are they still 'contrails'?
cheese and rice.
Originally posted by vermonster
reply to post by whereismyfather
I lived in waltham, mass up until september.
Get used to the spraying op, its part of living in a congested area.
peace out.
300.0 8890 -47.7 -75.7 3 0.00 280 134 318.0 318.0 318.0
291.0 9091 -47.5 -77.5 2 0.00 284 135 321.1 321.1 321.1
288.6 9144 -47.9 -77.4 2 0.00 285 135 321.3 321.3 321.3
254.0 9978 -53.5 -76.5 4 0.00 285 130 324.9 324.9 324.9
250.0 10080 -53.7 -76.7 4 0.00 285 129 326.1 326.1 326.1
240.0 10342 -54.7 -76.7 5 0.00 280 134 328.4 328.4 328.4
239.2 10363 -54.4 -76.6 5 0.00 280 134 329.2 329.2 329.2
236.0 10450 -53.1 -76.1 4 0.01 280 132 332.4 332.4 332.4
233.0 10533 -53.3 -76.3 4 0.01 281 129 333.3 333.4 333.3
214.0 11078 -55.9 -76.9 6 0.01 283 115 337.5 337.5 337.5
204.0 11383 -55.9 -76.9 6 0.01 284 106 342.1 342.2 342.1
201.0 11478 -55.1 -77.1 5 0.01 285 104 344.9 344.9 344.9
200.0 11510 -55.1 -77.1 5 0.01 285 103 345.4 345.4 345.4
197.8 11582 -55.0 -77.3 5 0.01 285 101 346.6 346.6 346.6
Originally posted by whereismyfather
reply to post by OzWeatherman
Oz,
I have the rainbow in my ATS pictures album, but the quality is poor if you want to take a look. It is the first one.
As far as your links to compare too, the first link has the Corna and Fogbow and they, I think are similar to the one in the photo.
Originally posted by vermonster
reply to post by OzWeatherman
explain this please, how is it that two planes can fly at the same altitude and only one produces lingering cloud like formations that spread out until its a hazy day.
go hang out in waltham or worcester or somerville, you can watch this "anomaly" all day long.
Originally posted by Phage
Those are contrails. You say "every Sunday" but then you say this was the first time you saw them. The air over Massachusetts is very cold and moist right now (conducive to contrails), you're likely to see a lot more.
Circular rainbows are not uncommon and are associated with cirrus clouds which, like contrails, are composed of ice crystals.
www.polarization.com...