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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. 1148 drdavidanderson 11-Jan-18 13:12
Re: Climate change, jets and jet streams. 180 drrayeye 11-Jan-18 18:57
Re: Climate change, jets and jet streams. 125 drdavidanderson 11-Jan-18 21:23
Re: Climate change, jets and jet streams. 136 drrayeye 11-Jan-18 22:13
Re: Climate change, jets and jet streams. 131 drdavidanderson 12-Jan-18 07:03
Re: Climate change, jets and jet streams. 124 drrayeye 13-Jan-18 01:07
Re: Climate change, jets and jet streams. 116 drdavidanderson 13-Jan-18 09:22
Re: Climate change, jets and jet streams. 153 drrayeye 13-Jan-18 10:14
Re: Climate change, jets and jet streams. 109 drdavidanderson 13-Jan-18 18:08
Re: Climate change, jets and jet streams. 115 drrayeye 13-Jan-18 18:32
Re: Climate change, jets and jet streams. 112 drdavidanderson 13-Jan-18 19:54
Re: Climate change, jets and jet streams. 111 drrayeye 13-Jan-18 20:51
Re: Climate change, jets and jet streams. 115 drdavidanderson 13-Jan-18 21:43
Re: Climate change, jets and jet streams. 100 drrayeye 14-Jan-18 08:18
Re: Climate change, jets and jet streams. 120 drdavidanderson 14-Jan-18 08:36
Re: Climate change, jets and jet streams. 125 Archaic 11-Jan-18 23:48
Re: Climate change, jets and jet streams. 126 drdavidanderson 12-Jan-18 07:11
Re: Climate change, jets and jet streams. 109 Archaic 13-Jan-18 08:31
Re: Climate change, jets and jet streams. 108 Archaic 11-Jan-18 23:45
Re: Climate change, jets and jet streams. 137 carolb 12-Jan-18 01:06
Re: Climate change, jets and jet streams. 128 drdavidanderson 12-Jan-18 18:08
Re: Climate change, jets and jet streams. 109 molder 14-Jan-18 21:45
Re: Climate change, jets and jet streams. 121 drdavidanderson 15-Jan-18 11:41
Re: Climate change, jets and jet streams. 337 molder 16-Jan-18 03:22
Climate change, jets and jet streams. 155 Reagent 12-Jan-18 04:02
Re: Climate change, jets and jet streams. and The Blob 119 molder 13-Jan-18 23:23


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