There is a number of pictures / composed pictures which show "chromosome" contrails. It is quite evident why I have named this phenomenon this way. In the composites contrail development is shown in 5-10 second intervals.
The bottom of the page shows contrails' and even plane's shadow on cirrus clouds.
va02641
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va03331
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va03341
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va01633
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va00252
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va01751
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va01853
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va03122
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va03154
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va03141
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va03133
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va005aa
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va028xx
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va014xx
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va017xx
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va029xx
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vv00111
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vv00124
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vv00211
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vv00214
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vv00242
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vv00341
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vv00343
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vv00351
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vv00412
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vv00413
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vv00512
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vv00614
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