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Originally posted by Rudy2shoes
Originally posted by Uncinus
The only contrail forecasts now are for military purposes, and for climate research.
I will have to absorb,
"contrail forecasts are for military purposes"
And get back to you on that.
Originally posted by Uncinus
Originally posted by Rudy2shoes
Originally posted by Uncinus
The only contrail forecasts now are for military purposes, and for climate research.
I will have to absorb,
"contrail forecasts are for military purposes"
And get back to you on that.
What's to absorb? Contrails give away the position of planes, so forecasts are useful if they want to avoid flying at an altitude that leaves a contrail. This has been true since WWII.
Originally posted by OutonaLimb
With all the lies and disinformation propagated , it is more important now than
ever before that people trust their own eyes and common sense.
Originally posted by OutonaLimb
Where i live - most days - very few planes - normal short lived contrails.
Originally posted by OutonaLimb
On chemtrailing days - large number of planes - massive extended trails.
Originally posted by OutonaLimb
I am 100% certain that chemtrails are a deadly reality.
Originally posted by DerepentLEstranger
feel free to provide it at your leasure, i wont hold my breath
Originally posted by Uncinus
Originally posted by Rudy2shoes
Originally posted by Uncinus
The only contrail forecasts now are for military purposes, and for climate research.
I will have to absorb,
"contrail forecasts are for military purposes"
And get back to you on that.
What's to absorb? Contrails give away the position of planes, so forecasts are useful if they want to avoid flying at an altitude that leaves a contrail. This has been true since WWII.
Originally posted by DerepentLEstranger
reply to post by Curious and Concerned
lol
free instructions are not a product
it is your claim[s] that is/[are] bogus
and if you are not being paid, i feel sorry for you
cyberstalking is a sign of mental problems, just so you know
unless you're getting overtime
as i said before once i catch you engaging in fraudulent/deceptive behavior,
sophistry, or sneak tactics
you are on my ignore list
so take a hintedit on 28-8-2012 by DerepentLEstranger because: (no reason given)
Originally posted by DerepentLEstranger
lol
free instructions are not a product
Originally posted by DerepentLEstranger
it is your claim[s] that is/[are] bogus
Originally posted by DerepentLEstranger
as i said before once i catch you engaging in fraudulent/deceptive behavior,
sophistry, or sneak tactics
you are on my ignore list
Originally posted by OutonaLimb
I didn't know there was an 'ignore' list, because I just ignored everything he
has said in his last response to me, even though to his credit, he was polite.
Originally posted by OutonaLimb
They show their cards when they try so hard. What part of '100% certain'
doesn't he understand, eh?
Originally posted by Rudy2shoes
Do you believe the military does not have the technology,
to not create contrails,
and needs a primitive forecast system to operate in current times.
I find it hard to believe that we are told that planes have not progressed passed, WW2 technology.
But that's ok you can continue to post historic pictures of planes in the past,
and claim them as current events.
At this time I have no choice but to continue absorbing what ever,
is a byproduct, or intentional product of fossil fuel usage.
"It is often observed that contrails spread considerably...Under favorable conditions, a lateral spread of kilometers is observed...If sufficient air traffic exists, an entire overcast of contrail cirrus may develop and persist for hours with rapid growth in the ice budget of individual contrails."
It is often observed that contrails spread considerably beyond the initial width defined by the outward extension of the wing-tip vortices. Under favorable conditions, a lateral spread of kilometers is observed with presumably comparable vertical spreading. If sufficient air carrier traffic exists, an entire overcast of contrail cirrus may develop and persist for hours with rapid growth in the ice budget of individual contrails.
There has been increasing concern over the amount of cirrus triggered through contrail formation. These results would not, however, suggest that increased air carrier traffic could increase the water vapor at subtropopause levels, a theme that is currently fashionable. On the contrary, the development of large numbers of precipitation size ice crystals in contrails results in precipitation and an ultimate exchange of water vapor to lower levels. Given reasonable frequency of contrail growth occurrence, the net effect of air carrier traffic may likely, in fact, be to lower the water abundance at the levels of most frequent air travel.
With any given fuel (or proportionality constant) there results a critical temperature for each altitude above which contrail formation is impossible. In order that the contrail be visible a temperature as much as several degrees below the critical temperature is generally required.
The aircraft also imparts a considerable amount of mechanical energy to the atmosphere in performing the work necessary for flight. Inevitably, this mechanical energy also appears as heat but not before condensation occurs in certain cases, and as will be seen below, after condensation occurs the condensed particles may rapidly radiate away the total heat produced through combustion allowing such "impossible" contrails to persist and grow.
The final pass in the same region as the upper pass in cross section A, but 12 min later (1247) revealed only a few crystals remaining at this level. The entire region rapidly decayed and completely disappeared by 1300.
It may not be apparent but the formation of an order-of-magnitude fewer ice crystals would result in the glaciation of a contrail with one-tenth of the optical depth of the one in this study. Such a glaciated trail may not be visible from the ground.
During the 10 days allotted for the research program conditions were favorable for contrail growth only on 16 and 19 September.
On 16 September, a massive upslope "summer" snow storm was developing along the front range. The early afternoon was characterized by a thickening lower deck, drizzle and lowering temperatures. An extensive band of contrail cirrus had already developed by the time we arrived at altitude (1400 MDT). While growth in the ice budget of our own contrail was observed and we were able to sample it, a detailed analysis of the data was not attempted because of possible confusion with the complex pattern of neighboring contrail cirrus and the rapidly changing meteorological situation.
On 19 September natural cirrus was visible at 30,000 ft over the mountains of northern Colorado and southern Wyoming. This region is not on major airways and contrails were not evident. By 1200 MDT we were in the region of natural cirrus which was developing between 25,000 and 30,000 ft. We found a few isolated cirrus uncinus about 50 n mi south of Laramie, Wyo., and after several sampling runs observed our contrail from a prior run persisting over several kilometers of flight path.
Originally posted by luxordelphi
reply to post by Thorazine
Thorazine: responding to your concerns about 15 minutes of persistence - The 15 minutes is a recollection from one WWII veteran.
It is often observed that contrails spread considerably beyond the initial width defined by the outward extension of the wing-tip vortices. Under favorable conditions, a lateral spread of kilometers is observed with presumably comparable vertical spreading. If sufficient air carrier traffic exists, an entire overcast of contrail cirrus may develop and persist for hours with rapid growth in the ice budget of individual contrails.
So, clearly, this introduction is not talking about an individual contrail .
Let's paint a picutre: air traffic over a region (i.e. London) is very heavy and creates what is known as a cloud corridor. Weather exists, on more days than not, and this condition, combined with a northern latitude, serves contrail formation. Let's paint another picture: air traffic over a region (i.e. Las Vegas) is heavy and creates what is known as a cloud corridor but there is no weather and no front and temperatures, even at altitude, are non-conducive and, combined with a lack of humidity, should, in a persistent contrail by the book world, produce no contrails. So that's our picture.
Observations and model estimates suggest that contrail growth is only weakly, if at all, affected by preexisting cirrus clouds.
Originally posted by luxordelphi
Isn't metabunk an affilliate of contrailscience? I'm thinking yes. I'm asking WHY would you put up a study from 1972 that supports chemtrails and, further, WHY would you then wave a debunking site at me? It's goofy. What?...you can't do your own debunking?
Interesting
Now scenes from fictional movies
are proof of contrails.