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David,

The experiment that you hypothetically pose IMO isn't practical, and the dependent variable "changes them," is not so easy to define. If the independent variable is the activity of the planes on the jet stream, are they going to cause the (dependent variable) winds to change course, change speed, change shape, or what? We know that the jet stream will change anyway, so what ever change we attribute to the planes needs to be separable from the "natural" changes.

As I mentioned already, I think data is already available which makes your experiment unnecessary--even if you could get support to carry it out. We have in flight archives a great deal of information about every flight all over the world. We may be able to use the flight journal information to separate measurements of jet stream wind speed (for example) when the plane was inside and outside the jet stream.

Differences in wind speed would be evidence for an influence of the airplane on the jet stream.

Ray

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Subject Views Written By Posted
Climate change, jets and jet streams. 1246 drdavidanderson 11-Jan-18 13:12
Re: Climate change, jets and jet streams. 211 drrayeye 11-Jan-18 18:57
Re: Climate change, jets and jet streams. 156 drdavidanderson 11-Jan-18 21:23
Re: Climate change, jets and jet streams. 163 drrayeye 11-Jan-18 22:13
Re: Climate change, jets and jet streams. 168 drdavidanderson 12-Jan-18 07:03
Re: Climate change, jets and jet streams. 161 drrayeye 13-Jan-18 01:07
Re: Climate change, jets and jet streams. 152 drdavidanderson 13-Jan-18 09:22
Re: Climate change, jets and jet streams. 186 drrayeye 13-Jan-18 10:14
Re: Climate change, jets and jet streams. 140 drdavidanderson 13-Jan-18 18:08
Re: Climate change, jets and jet streams. 144 drrayeye 13-Jan-18 18:32
Re: Climate change, jets and jet streams. 144 drdavidanderson 13-Jan-18 19:54
Re: Climate change, jets and jet streams. 141 drrayeye 13-Jan-18 20:51
Re: Climate change, jets and jet streams. 152 drdavidanderson 13-Jan-18 21:43
Re: Climate change, jets and jet streams. 130 drrayeye 14-Jan-18 08:18
Re: Climate change, jets and jet streams. 159 drdavidanderson 14-Jan-18 08:36
Re: Climate change, jets and jet streams. 159 Archaic 11-Jan-18 23:48
Re: Climate change, jets and jet streams. 160 drdavidanderson 12-Jan-18 07:11
Re: Climate change, jets and jet streams. 141 Archaic 13-Jan-18 08:31
Re: Climate change, jets and jet streams. 140 Archaic 11-Jan-18 23:45
Re: Climate change, jets and jet streams. 164 carolb 12-Jan-18 01:06
Re: Climate change, jets and jet streams. 161 drdavidanderson 12-Jan-18 18:08
Re: Climate change, jets and jet streams. 137 molder 14-Jan-18 21:45
Re: Climate change, jets and jet streams. 152 drdavidanderson 15-Jan-18 11:41
Re: Climate change, jets and jet streams. 382 molder 16-Jan-18 03:22
Climate change, jets and jet streams. 186 Reagent 12-Jan-18 04:02
Re: Climate change, jets and jet streams. and The Blob 149 molder 13-Jan-18 23:23


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