Where exactly in scandinavia are you based?

How long did the trails stay for?

Nice shots, though not that unusual for areas used to hosting large amounts of air traffic, methinks.

Yes I have noticed them here in the St. Louis area over the past 2 days.

My thoughts are that the upper atmosphere has cooled to a point that it allows for more vapor to form, hot compressed air exiting the jet engines and then cools to form vapor.

We see the trails more now, fall, winter, spring than in the summer months.

I think its mostly water vapor, but I did see a study this summer that claims a high volume of air traffic in geographic area which are producing con-trails will affect the weather in that area, its just a theory. I will try to find the study and post it to your thread.

john

I live in south Sweden, and some of the trails seemed to last 30 minutes or even longer. Some stayed shorter as well.

Nice shots, though not that unusual for areas used to hosting large amounts of air traffic, methinks.

The problem is we donīt have alot of air traffic, generally. It seemed to just be so today, itīs weird.

We see the trails more now, fall, winter, spring than in the summer months.
I think its mostly water vapor, but I did see a study this summer that claims a high volume of air traffic in geographic area which are producing con-trails will affect the weather in that area, its just a theory. I will try to find the study and post it to your thread.

Yes this may be the case. The last 2 days have been kinda warm but with very cool winds.

I too have seen some of those chem-trails last week, too bad I don't have a site where I can upload 800kb pics.

I see you too managed to catch one of them bastards start spraying whatever that is they spray (pic 005).
Too bad those cameras can't zoom that much, I could actually see a silver/white plane sprying that stuff, but when I took the picture with a digital cam, I could only see a white trail, and no plane.... I'm sure you had the same thing happen.

have a good one.

RIP to all the kids in that school.

Wow! Sweden also? That must mean that there are hundreds of thousands of those chemplanes up in the sky to cover Europe, Scandinavia, North America etc. I wonder where they are basing all of those planes? The number of pilots involved must be greater than all of the worlds military and commercial pilots put together. What about all of the ground personnel that you would need to maintain the planes; fill them with chem.-goop, etc. Where are these people coming from? Are they clones from outer space?

perhaps the formation of the contrail depended on the direction the plane was going in... i'm sure there are many factors to take into consideration such as wind speed/direction.

buuut, who knows, maybe you annoyed the danish?

Argh, this is bugging me!
Yesterday (Saturday) everything seemed back to normal, saw 1 airplane way up. The trail it left seemed kinda long, but nothing like on Friday with planes going all over the place at intervals. (BTW - skies were much clearer as well, very few clouds around noon)

I will have to pay close attention this coming week, especially on Friday. Perhaps I should try and contact the airport and ask how many landings/take offs they have.

However I donīt know if these kind of questions would arouse suspicions. Wouldnīt want the Swedish Secret Police huntinī me down