tag:blogger.com,1999:blog-820570527003668244.post1324221286108347205..comments2024-01-31T04:58:12.328-06:00Comments on Climatesense-norpag: Post to Frontline 10/23/12Dr Norman Pagehttp://www.blogger.com/profile/07481441558527911558noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-820570527003668244.post-14634825090268154112013-02-03T17:45:17.590-06:002013-02-03T17:45:17.590-06:00Some time back I asked people if they could explai...Some time back I asked people if they could explain how the required thermal energy gets into the surface of Venus. At least 98% of all incident Solar radiation is absorbed by the thick atmosphere there, so the Sun does not heat the surface significantly with direct radiation. <br /><br /><b>No one on any climate blog has provided the correct answer, so I guess it's time to explain what does happen.</b><br /><br />The thermal gradient in an atmosphere evolves even in still air. We have proof that it does in over 800 experiments by Roderich Graeff, and it is logical that it would if you consider my thought experiment about a cylinder divided into three sections. If the top and bottom sections are a vacuum and then gas is released from the middle section by removing the dividers, then, at thermodynamic equilibrium, there has to be a cooler temperature at the top and warmer at the bottom. If KE were homogeneous, then the extra PE in the molecules at the top would cause a general propensity for some gas to move downwards gaining KE as it does so. After all, each individual molecule has mass, and thus has KE (as we know) and also PE. So it must obey Newton’s laws in free flight between impacts.<br /><br />The Venus surface would not be as hot if all convection moved away from the surface. If that happened we have no explanation as to how the required energy gets into the Venus surface. Because IPCC and cohorts could not conceive this heat transfer by convection, they postulated that back radiation could do the job of raising Earth’s surface 33 degrees, and the surface of Venus by about 500 degrees. But 10W/m^2 of direct solar radiation reaching the Venus surface could hardly produce much back radiation anyway! Surface bound heat transfer by convection is the missing link which we have all been looking for, and no one it seems has previously described this as being the only explanation.<br /><br />We must understand that diffusion of KE (even in still air) sets the gradient of the thermal plane in an atmosphere. Then any additional heat absorbed from the Sun (such as when night becomes day) will spread out over that thermal plane (moving away from the source in all 3D directions) just as if it were the level surface of a lake receiving rain (extra water) in some section of the lake. This is the only way we can explain how energy moves up the thermal gradient and into the surface of Venus. Radiation cannot transfer heat from the cooler atmosphere, but non-radiative convection can flow towards the surface over the thermal plane whose gradient is set by diffusion of KE in a gravitational field.<br /><br /><br />Doug Cottonhttp://climate-change-theory.comnoreply@blogger.com