[ltc8k6]

The "lower" part of the contrail that is supposedly originating from the ground, is being "smeared", and it's being smeared by upper level winds. Proof positive that it is not anywhere near ground level. imo

[ltc8k6]

http://www.youtube.com/watch?v=eAZLYn44FeQ

Right at the beginning of the vid, you can see the remnants of an earlier airliner contrail on the same flight path. Only a short segment is still visible, but it’s there, parallel to the later one.