R. Tao is completely wrong about cause of tornadoes
R. Tao, Int. J. Mod. Phys. B, 28, 1475005 (2014) [8 pages] DOI: 10.1142/S0217979214750058
Can we eliminate major tornadoes in Tornado Alley? — Response to the Comments
Department of Physics, Temple University, Philadelphia, PA 19122, USA
Received: 2 October 2014
Accepted: 21 October 2014
Published: 5 November 2014
Dahl and Markowski are wrong and misleading to claim that the major tornadoes in USA Tornado Alley are not related to the collisions between northbound warm air flow and southbound cold air flow. In addition, they use incompressible and inviscid fluid model for atmosphere in their simulations about the interaction between air wind and the wall. Such approach ignores the basic physics and thus cannot reach any meaningful results.
What basic physics? Seriously, what in the world is Tao talking about here. Apparently he can imagine two air masses colliding. And from that he envisions turbulent eddies emerging. Is that his, “basic physics?” It would appear that that is about it.
As air is compressible, the collision between the wind and wall will compress air, eventually lead the air density to decrease fast with the height and make the air flow stratified.
This is just imagination. I can only assume that he must think the collision happens at height and this explains why it has not been observed on the ground. And maybe he thinks a tornado vortex is nothing but a big eddy, which is absurd IMO.
The viscosity will produce wind shear, turbulent eddies and greatly reduce the wind’s forwarding speed. Laboratory experiments and the Nature have all shown that hills with height about 300 m will not block winds completely to change the climate, but can effectively reduce the wind speed, weaken the air mass collisions and eliminate the major tornadoes. All these strongly support the theory that building east–west ranged walls of 300 m high and 50 m wide will eliminate major tornado threat in Tornado Alley.
Tao isn’t really dealing with any of the issues here. For example, none of this explains what role moisture plays in all of this. This is just vague and speculative.