In a recently published paper, atmospheric scientists specializing in contrails were asked what caused various photographed phenomena that "chemtrail" believers frequently identified as evidence of a secret large scale atmospheric spraying program. They unanimously identified the photos as ordinary contrails, and gave physical explanations for the various things shown in them.
As a response to this paper (which also covered chemical tests, and of which I am a co-author), the web site "Geoengineering Watch" published a response, the most prominent part of which being a video of a jet leaving a trail, titled "Irrefutable Film Footage Of Climate Engineering Aerosol Spraying".
With the accompanying narration set to dramatic music:
And the video description:
This video contains some of the most compelling footage yet captured of the
ongoing atmospheric aerosol spraying assault. Countless people ask me how we
can prove that jet aircraft are spraying in our skies.
Here's the answer. Because we have up close
film footage of these jets spraying. Turning on and off, period . That's the end of
any debate on the matter
In the effort to awaken others to the critical climate engineering issue if
they refuse to accept what they can see with their own eyes
there's nothing more you can do for them.
Move on to others that are ready to face reality.
The greatest line ever perpetrated on populations around the planet is the
fallacy that the lingering expanding jet trails we see in our skies is just
It is not.
Film footage like this proves beyond a reasonable doubt that
what we are seeing in our skies are sprayed aerosol dispersions that are
part of the ongoing global climate engineering solar radiation management
These programs are decimating hearse life support systems there nothing short
of omnicide for planet Earth
They must be stopped.
Videos like this are the most exceptional of tools in the battle to
reach a critical mass of awareness regarding the climate engineering issue
we must all use every tool at our disposal
Every day counts.
This is Dane Wigington, for geoengineeringwatch.org
The video actually shows an aerodynamic contrail. It's caused by the drop in pressure over the wing causing water to condense out of humid air. It goes on and off because humidity is sometimes patchy, as seen by clouds being sometime patchy.The geoengineers continue to ramp up their ongoing aerial bombardment of planet Earth. In order to wake up the sleeping masses to the war being waged against them in skies around the globe, visual proof is essential. Numerous forms of jet aerosol dispersions have been captured on film which inarguably reveal that elements are in fact being sprayed into the atmosphere. Footage of "on and off" dispersions from jet aircraft at cruising altitudes prove that what we are seeing is NOT CONDENSATION. ALL commercial flight carriers and ALL military tankers are equipped with a "high bypass turbofan jet engine". This type of jet engine is essentially a jet powered fan and is thus, by design, nearly incapable of producing any condensation trail except under the most rare and extreme of circumstances. Even then, only a short, very rapidly dissipating, trail could ever be produced from a "high bypass" jet engine due to its design characteristics. This 2 minute video is exceptional and inarguable up-close film footage of an aerosol spraying assault. We must all make our voices heard in the most critical battle to expose and halt the climate engineering insanity. My deepest gratitude to Douglas Huang for capturing this extremely compelling video footage.
The "deepest gratitude" to Douglas Huang seems somewhat misplaced, according to this account:
However, the provenance of the video is unimportant, because what it shows is simply the well understood phenomenon of a persistent aerodynamic contrail. While this is a nice example, there are many other video examples that show aerodynamic contrails and the on/off behavior due to flying through patchy humidity.
The first video, as I explained in the comments, shows contrails from an EVA Air Boeing 777 en route from Taipei to San Francisco. The video was stolen without permission from Douglas Huang, who uploaded it in 2012. It was filmed from a China Airlines 747 which was following the same route.
I contacted Mr Huang to let him know that Dane had taken his video and added his own totally baseless narration to it. He filed a complaint with YouTube but for whatever reason they allowed it to stay up. Mr Huang has since taken his video down, for unknown reasons.
And countless photos:
One photo including an aerodynamic portion to the contrail was included in the study:
The 49 contrail experts were asked about this. They all said the photo showed contrails, (although their explanations of the colors varied slightly between refraction and diffraction). Here are some of their comments (note these are from survey responses, and so several contain typos):
The scientists were also asked about another phenomenon seen in the video, the "on/off" behavior. Again this was explained as a normal phenomena. Now the photo used was of an exhaust contrail (from the engine), not the aerodynamic contrail (from the wing), but the basic principles of uneven atmospheric humidity are the same. Here are some of the scientists comments:
the aircraft is flying through a very moist region of the atmosphere (RHice >100%) and generating very heavy condensation trails. Moisture levels are so high that uniform-sized ice crystals are forming in the pressure wake of the aircraft fuselage and are scattering solar radiation to produce the atmospheric optics seen in the photo.
Very high humidity, much greater than ice supersaturation, in the layer results in formation of dense contrails. The faint flat trail in the middle is likely the secondary contrail formed by the detrainment of part of the wake vortices. The small particles and thinness of the center contrail together with the viewing and illumination angles can result in a "rainbow" effect. formation of an airframe contrail induced by the reduced air pressure on top of the wing.
These are contrail forming in the wake of the aircraft engines, from aircraft emitted and the ambient water vapour. The coloured structures between the contrails are likely to be aerodynamically formed contrails of less ice water content but different crystal structure. There are well investigated examples of this kind in literature.
It seems that the plane is flying in air of very high humidity (maybe in the tropics). Many ice crystals are formed in the contrails that take up a large amount of water vapor. At the same time it seems that there is some kind of trail inbetween the main trails that account for the rainbow colors which would mean that aerodynamic contrails have formed as well. The rainbow color in aerodynamic contrails have been shown to indicate the size of the ice crystals. As the crystals grow the color changes so that there is a spectrum of colors in different distances from the air plane
Different types of contrails: spectrum contrails from Aerodynamic effect, others from normal Schmidt Appleman formation
The wings produce lift and hence above the wing the pressure is low. Hence the air flowing over the wing is cooled adiabaticly, reaching fast large supersaturation and and hence forming of many small ice particles. Optical refraction leads to the nice colour spectrum.
Engines are producing a dense contrail due to high water vapor content of exhaust and ambient air producing mixing supersaturation. Aerodynamic contrail is formed by the wing. These are probably producing liquid droplets which a refracting light like a rainbow.
The dense trails are persistent contrails. The rainbow spectrum in between is an example of Iridescent aerodynamic contrails (AerC). AerC be differentiated from jet contrails as soon as they display iridescence which requires an angular distance from the sun of less than about 30Â°.
The dense trails are contrails, line shaped clouds forming behind an aircraft if the ambient air is cold enough. The rainbow spectrum are due to the formation of Iridescent aerodynamic contrails.
The phot shows 4 exhaust contrails fromign fromengine emissions and in addition a thin ice cloud forming becasue of low pressur over the wings in ambient air that is very humid and cool (so-called aerodynamic contrails)
See publications by Gierens et al. (2009) dn KÃ¤rcher et al. (2009):
The dense trail is a normal exhaust contrail formed by the water vapour from the engines, the rainbow-coloured trail in between is likely due to aerodynamic effects (aerodynamic contrails).
So, aerodynamic contrails are a familiar and well understood thing. Variations in atmospheric humidity are also familiar and well understood. This video, like many similar videos and photos shows aerodynamic contrails and variations in atmospheric humidity.
Local variations in atmospheric relative humidity, which can be caused by numerous processes.
Most pilots really like to keep their engines running, and engines run in a fairly consistent manner in cruise, so the gap is likely due to small variations in atmospheric conditions.
a region where the ambient air is not supersaturated with respect to ice
The relative humidity is not constant at flight altitude. In the gap it is lower than ice saturation. This can be caused by the thin cirrus that is visible. The cirrus crystals consume the water vapour in excess of saturation and start to sink due to gravity. But even without a cirrus, the relative humidity field is very variable.
heterogeneity [variation] in ice-superaturation field
Atmospheric wave structure, which causes spatial variations of temperature, which in turn changes relative humidity structure.
Consider also what was written in the description of the video:
This is utterly wrong, for two reasons:This type of jet engine is essentially a jet powered fan and is thus, by design, nearly incapable of producing any condensation trail except under the most rare and extreme of circumstances. Even then, only a short, very rapidly dissipating, trail could ever be produced from a "high bypass" jet engine due to its design characteristics.
- It is not an exhaust contrail - It's an aerodynamic contrail. It has nothing to do with the engines
- This type of jet engine makes MORE contrails. The idea that high bypass jet engines cannot make contrails is one of the most nonsensical claims ever put forward by the chemtrail community. Jet engines make water. The amount of bypass air does not change this. This claim has been refuted in great depth here.
Again this simply proved to be an aerodynamic contrail (this time between some exhaust contrails, as in the study photo).
And this was explained in great depth in this thread:
Another "undeniable" and "inarguable" piece of evidence from last year
Was just a well documented fuel dump from a Thai Airways 777 flying from Munich. This was extensively documented here:
Geoengineeringwatch has a long history of being informed of their mistakes, and then ignoring the corrections, and simply doubling down by repeating the same mistake. A good example of their immunity to corrections is their "Extensive list of Patents" (used as an example of something we should have shown the scientists). Over two years ago I wrote about this list, and noted it included a device for indicating the toner level in a photocopier. But as of today that patent is still in the list.Incident: Thai B744 near Munich on Jul 15th 2015, problems with flaps control
A Thai Airways Boeing 747-400, registration HS-TGB performing flight TG-925 from Munich (Germany) to Bangkok (Thailand), was climbing out of Munich when the crew stopped the climb at FL180 reporting a problem with the flaps control, entered a hold to work the problem, dumped fuel and returned to Munich for a safe landing on runway 26L about 2:20 hours after departure.
In fact all the pieces of "evidence" that GEW used to "rebut" the study have been discussed, and debunked here, usually years ago. The NOAA "gag order", the "historical documents", the patents, high bypass engines, "retrofitted nozzles", "global dimming", tests for aluminum, ozone destruction, biosphere freefall, and legal actions.
All discussed, mostly debunked years ago. But ignored, and then regurgitated by Geoengineering Watch. I do not expect this pattern to change. But I hope that people can at the very least have a look at aerodynamic contrails and recognize that videos of them are not "irrefutable" or "inarguable" evidence of anything other than normal atmospheric physics.