Wednesday, July 27, 2011 – On an otherwise cloudless hot summer day in the desert, jet planes left behind persistent contrails in their wake.
“Contrails are human-induced clouds that usually form at very high altitudes (usually above 8 km – about 26,000 ft) where the air is extremely cold (less than -40ºC). Because of this, contrails form not when an airplane is taking off or landing, but while it is at cruise altitude.”
-NASA’s Contrail Education web site.
So if planes are at cruising altitude and it’s cold enough above 26,000 feet, a contrail may be visible. The contrails observed over Coachella Valley persisted as line segments. The dome of hot air that has brought a heat wave to most of the country has moved into California. The lack of clouds would suggest low humidity levels. How could these line segments form if the conditions do not exist?
“The length of time that a contrail lasts is directly proportional to the amount of humidity that is already in the atmosphere. A drier atmosphere leads to a more short-lived contrail, while an atmosphere that has more humidity will lead to longer-lived contrails. However, if the atmosphere is too dry, no contrails will form. Occasionally a jet plane, especially if ascending or descending, will pass through a much drier or more moist layer of atmosphere which may result in a broken pattern to the contrail, with it appearing in segments rather than in one continuous plume.”
The segmented persistent contrails over Coachella Valley expanded, how does that happen?
“If the humidity is high (greater than that needed for ice condensation to occur), the contrail will be persistent. Newly formed ice particles will continue to grow in size by taking water from the surrounding atmosphere. The resulting line-shaped contrail extends for large distances behind an aircraft. Persistent contrails can last for hours while growing to several kilometers in width and 200 to 400 meters in height. Contrails spread because of air turbulence created by the passage of aircraft, differences in wind speed along the flight track, and possibly through effects of solar heating.”
While these answers may be factual when generally applied theoretically, the actual situations in the real world do not match up with the official explanations.
Is it really possible that humidity is high enough over the desert during a summer heat wave that ice particles grow in size to form cloud haze by jet emissions alone and only at a very specific layer that all the planes seem to be rising or descending through to form expanding persistent contrails due to the effects of “solar heating”?
Here are pictures taken from Moreno Valley to Palm Desert and places in between in Coachella Valley:
Chemtrail Hazard Map for July 27, 2011 with Alert for Southern California:
SoCal SkyWatch Video – “Geoengineering Scientist Explains Contrails”
Annual AAAS Meeting (American Association for the Advancement of Science) at the San Diego Convention Center. Scientist Alan Robock, Rutgers University, meets with protesters before his scheduled session, “Can Geoengineering Save Us from Global Warming? This is the same conference David Keith proposed injecting 10-20 megatons of aluminum nano-particles into the atmosphere per year for Solar Radiation Management (SRM) by means of Stratospheric Aerosol Geoengineering (SAG).