What I’ve learned so far from the “experts” on ATS about chemtrails and how to prove or disprove their existence in photographs.
1. Don’t call them chemtrails. They’re contrails; even if they don’t contain any condensation. Don’t ask.
2. Learn the basic science behind how contrails are formed. College courses are taught about this topic, and people who have taken such courses can
drown you in jargon, so learn the basics.
a. Generally speaking, contrails are formed above 8000 meters in altitude where the air temperature starts to drop to about -40 and below, but when
there is enough humidity in the air relative to the air temperature to reach the dew point…the conditions REQUIRED for contrails to form. 8000 m
altitude is negotiable…if the temp and relative humidity conditions are met at lower altitudes, contrails will also form.
b. Sounding data are simply the information provided from collection devices like weather stations and balloons. Sounding data snapshots are
available to we unwashed masses twice a day and synchronized in Z time. Z time is based on Greenwich Mean time. 00Z is zero hour in Greenwich mean
time, which is actually a half day ahead of me in PST, so for me to choose data for the afternoon of any day, I’ll need to look at the data from 00Z
time from the NEXT day, as that is the report which will contain the readings from my area in the afternoon of the previous day. 12Z the would be
early morning my time. Get familiar with sounding data in your area by going to this site.
weather.uwyo.edu...
c. For Perspective on relative humidity, Arizona is considered dry with areas that have a relative humidity (RH) of 50…the driest being Antarctica
with a relative humidity in the 20s.
3. Get a date-stamped photograph of a suspected aerosol or powdered contrail incident. I used this one from the afternoon of June 24th, 2010:
[atsimg]http://files.abovetopsecret.com/images/member/2e5a54f86331.jpg[/atsimg]
4. Remember if the conditions described above aren’t met, contrails CANNOT form. Using the chart below as a guide, the contrails in the above photo
are in reality not contrails. I don’t claim to know what they are, but according to the below data taken from Salem which is within 50 miles from
where this picture was taken; relative humidity was in the teens and low 20s, as dry as the driest place on earth, making the dew point out of reach;
therefore there was no chance contrails could form at any altitude. I’m not an expert, but that’s what I’m reading here. Can anyone check my
work?
72694 SLE Salem Observations at 00Z 25 Jun 2010
-----------------------------------------------------------------------------
PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV
hPa m C C % g/kg deg knot K K K
-----------------------------------------------------------------------------
315.0 9144 -36.5 -50.5 22 0.12 282 24 329.2 329.7 329.2
300.0 9480 -39.5 -55.5 17 0.07 285 24 329.6 329.9 329.6
290.0 9711 -41.7 -59.7 12 0.04 289 24 329.6 329.8 329.7
275.3 10058 -44.5 -61.0 14 0.04 295 24 330.5 330.7 330.5
254.0 10596 -48.9 -62.9 18 0.03 264 27 331.7 331.9 331.7
251.2 10668 -49.3 -62.6 20 0.03 260 27 332.1 332.3 332.2
250.0 10700 -49.5 -62.5 20 0.03 265 28 332.3 332.5 332.4
217.9 11582 -55.4 -67.8 20 0.02 270 23 336.5 336.6 336.5
200.0 12130 -59.1 -71.1 20 0.01 295 26 339.0 339.1 339.0
198.0 12192 -59.5 -71.2 21 0.01 295 26 339.4 339.4 339.4
194.0 12320 -60.3 -71.3 22 0.01 295 27 340.1 340.1 340.1
188.6 12497 -60.0 -71.5 21 0.01 295 24 343.3 343.4 343.4
184.0 12650 -59.7 -71.7 19 0.01 285 21 346.2 346.3 346.2
weather.uwyo.edu...
edit on 26-2-2011 by Yankee451 because: (no reason given)