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And Wacky, please stay out of it. You have no science either.
So, in other words you have no science.
If the weather supports it and there is a lot of air traffic, you should have your contrails.
You want to have the option to say that there is no way to know.
That is not science.
After looking at the data, you should be able to say on what days contrails were visible.
I am willing to let you do it after the fact.
Originally posted by Phage
reply to post by BillfromCovina
Like I said, there may not have been any planes high enough (34,000+) to produce contrails. The only planes that high over your area would be overflights, not planes bound for or taking off from one of the LA airports. Seeing no contrails doesn't really demonstrate much. If, on the other hand, you see contrails when there shouldn't be any, it's a different matter.
Ok. We can continue to try it your way but if you don't allow some room for error it's a little disingenuous. The tools at we (us guys, ATS members) have at our disposal are a little crude. We use this, the appleman chart.
The upper air data is produced twice a day. I'll give it a shot when the next one comes out.
edit on 3/3/2011 by Phage because: (no reason given)
265.1 10363 -46.5 -63.7 12 0.03 250 44 331.1 331.3 331.2
250.0 10750 -49.3 -64.3 16 0.03 245 43 332.6 332.8 332.6
221.0 11547 -55.3 -68.3 18 0.02 238 48 335.3 335.4 335.3
208.0 11932 -56.9 -68.9 21 0.02 235 50 338.7 338.8 338.7
201.0 12148 -56.3 -68.3 21 0.02 235 53 343.0 343.1 343.0
200.0 12180 -56.3 -68.3 21 0.02 235 53 343.4 343.5 343.5
You want me to accept that you are right no matter what even if the science does not back you up.
I will back it up with pictures. Please also post the data you are using for each day, and the time. Let us do a week from March 4 to March 10.
You have to be willing to say that there is a possibility you are wrong. You guys keep offering this challenge but when someone accepts you then back off.
1. The meteorological conditions, including temperature, precipitation, and wind, that characteristically prevail in a particular region.
1. The state of the atmosphere at a given time and place, with respect to variables such as temperature, moisture, wind velocity, and barometric pressure.
intr.v. pre·vailed, pre·vail·ing, pre·vails
[3. To be most common or frequent; be predominant: a region where snow and ice prevail.
Precision of speech.
Q. Why can’t we start a cloud seeding program in dry years to make sure we get enough rain?
A. This question pops up whenever we have a dry year here. The answers:
1. We can.
2. But it doesn’t work well in our truly dry years, because cloud seeding requires CLOUDS – which were in unusually short supply last winter.
3. And it’s not cheap, either.
The local cloud seeding program is operated between November 1 and April 30 of most years. Seeding is only possible during those months if there are clouds present that might produce rain. During drought periods, cloud seeding is not effective.
2) Precipitation augmentation through cloud seeding should not be viewed as a drought relief measure. Opportunities to increase precipitation are usually few, if any, during droughts; consequently, the cost of mounting a cloud-seeding operation will far exceed the benefits that may be obtained. A program of precipitation augmentation is more effective in cushioning the impact of drought if it is used as part of a water management strategy on a year-round basis whenever opportunities exist to build soil moisture, to improve cropland, and to increase water in storage.
The climate of Australia varies widely, but by far the largest part of Australia is desert or semi-arid – 40% of the landmass is covered by sand dunes. Only the south-east and south-west corners have a temperate climate and moderately fertile soil. The northern part of the country has a tropical climate, varied between tropical rainforests, grasslands, part desert.