Greetings,
Cloudspotter, hopefully this will address your statement. The vast majority of gravity waves move up. The downward effect on weather is seen in the fair weather exchange, downwelling of the polar vortex and chemistry alterations and energy (or energetic potential) that moves downward. Gravity waves are characterized as energy carriers. Moving energy around at 60km exerts an influence below. The studies I have read note that downward propagating waves are ducted or tunnel into lower atmospheric boundary layers where they are captured and spread energy horizontally (evanescent waves) The effects of gravity wave and wave breaking at 80km modify the dynamics of weather. By modifying the F layer, chemistry changes occur that are directly linked with meridional circulation and the downwelling of the polar vortex.
Gravity waves interact with zonal winds wind shear and the electric circuit of various ionospheric layers creating significant effects on all. By Modifying the electrical layer(s), modifying and creating gravity waves and the dynamic coupling of weather is changed. Beaming waves into the ionosphere during the night time produces localized effects that are dramatic, 200-350% increases in plasma density have been achieved.
Boston wrote;
They don't, its not rocket science to realize that perturbations in a less dense medium have little effect on an adjacent greater density medium proportional to the density differences between the two mediums.
Correct in that gravity waves from the mesosphere do not travel all the way down to the troposphere. The waves most often propagate upwards. Wave-wave interactions and TID's require more study.
With regards to rf transmitters, including SBX platforms, they are capable of creating gravity waves and increasing the density of a region. The transmitters can focus on regions of the greatest density or adjacent regions.
Pete posted;
They don't, its not rocket science to realize that perturbations in a less dense medium have little effect on an adjacent greater density medium proportional to the density differences between the two mediums. -Boston
And that simple logic applies to claims of HAARP weather manipulation - Pete
So what evidence are you looking for Pete? It would be more compelling to see data that states this experiment caused the polar vortex to split in 2, which lead to an unusually cool spring for regions of the upper midwest, but I do not think that this correlation can be firmly made for a while.
External Quote:
Gravity waves carry momentum and energy between different points in the atmosphere. If a gravity wave is generated at a source region (e.g. a mountain) and dissipates somewhere else, this amounts to a transfer of energy and momentum from the first point to the second. When energy and momentum are deposited in the dissipation region, they can alter the mean flow. Meteorologists have realized in the last decade that computer models are not always very good at predicting mean winds, or making good forecasts, and they have now realized that part of the reason for this is that they had not been including gravity wave generation and dissipation in their models. A considerable amount of effort is being turned towards proper parametrization of gravity waves in meteorological models.
In the upper regions of the atmosphere, especially the stratosphere and mesosphere, gravity waves have huge effects. For example, in the mesosphere it has been found that by including gravity waves in computer models, the directions of the winds have in some cases even been reversed relative to the expected wind directions deduced without inclusion of gravity waves! The values deduced with gravity waves included agree better with observations than do the older predictions.
from,
http://www.physics.uwo.ca/~whocking/p103/grav_wav.html
This thread has given academic evidence that;
A) rf transmitters create acoustic gravity waves and can modify and change wave breaking and wave-wave interactions.
B) Gravity waves exert a very significant effect on the meridional circulation and zonal wind flows (including the reversal of winds)
C) rf transmitters modify regions of the ionosphere and change plasma densities and cause chemical and molecular changes.
D) rf transmitters alter electrical dynamics from 50-350km.
E) weather is a dynically linked system. Modifying the ionosphere is modifying stratospheric and tropospheric weather and climate.
figure 2 above and the dynamical coupling diagram both indicate upwards and downwards effects of weather. Rf transmitters modify chemistry and heat and electeical potential at 85 km. This modifies weather below, such as the meridional flow.
As for a weather forecast based upon EISCAT heating experiments don't hold your breath. Neither do I expect to see a press conference announcing how HAARP is making progress on altering the jet stream. I believe along the lines of what Eastlundd has stated publicly that todays transmitters can and are affecting zonal winds.
Happy Friday or Saturday, Happy Monday! You asked about the NASA press releases and the comment that I made about them being unrecognizable to the scientists who submitted their papers. I will look for the statement of this. I did not make this statement in direct regards to this report. In the past NASA press reports have received this criticism. I would really like the full studies that lead to this report. The electrical currents in the tropics is relevant to the discussion of weather modification.
Mick,
I agree it is an iridescent cloud. I am interested in the chemistry and electrical properties of these clouds. Do the wavelengths of iridescent clouds match those of nacreous or noctilucent clouds? I will be posting more on clouds eventually. The cloud looks like a sheet, its just a great picture of a super thin cloud.

Bryan
Wisdom is the compass by which man is to steer across the trackless waste of life; without it he
is a derelict vessel, the sport of winds and waves. -Charles Spurgeon
Ross, I will address your claim thoroughly. Thanks !