Waves
The effects of wave phase are in the following websites:
Pendulum WAVES : Note the development of wave modes. Between each mode is a period of seeming chaos.
This website illustrates wave dispersion Dispersive waves
Several satellite photographs of large scale gravity waves are seen at Alabama Weather Blog
Standing and traveling waves are animations are found at Strings, standing waves and harmonics : This website features many examples and explanations of wave harmonics and wave modes.
Standing waves in a pipe applet is found at Pipe waves
The website Transverse waves offers animations standing and transverse wave with selectable harmonics and other wave parameters.
Polarizations between the horizontal and vertical wave perturbations are animated in Polarization.avi, Polarization-90 deg.avi, and Polarizations-180 deg.avi.
Kelvin-Helmholtz wave instability has been studies the laboratories using tilted tanks. These tanks are rectangular in cross section and long. Usually two colored fluids of differing density are put into the tank while the tank is horizontal. The tank is then quickly tilted so the denser fluid moves downward and the upper fluid moves upward resulting in a large shear at the fluid interface.
This is illustrated in Tilted tank.
Subsequently, the laboratory tanks were replaced my numerical simulations. Many kinds of wave instability and wave motions are illustrated at the website.
Numerical simulations
Light reflection and refraction : This video is a numerical simulation of reflection and refraction of a monochromatic light wave at dielectric interface note the cellular wave between the incident and reflected wave. Inside the dielectric, the speed of light is slower, so the wave fronts shift direction. Gravity waves behave similarly, but the refraction is a function of wind speed and stratification in the lower medium.
Interactive animation : This website, WOLFRAM.COM, is an excellent interactive animation of wave reflection and refraction. The incident and reflected waves are added which give a realistic view of the physics. One can vary the angle of incidence, upper and lower wave speeds, and wave frequency. A free software download is needed to view this and many other animations.
Pictures of evanescent waves : This website offers several interactive examples of evanescent waves. Software needs to be downloaded.
Evanescent animation : This website is a colorful animation of wave reflection and evanescent wave transmission. Note the magnitudes of the incident and reflected waves are constant indicating that wave energy did not pass through the reflecting interface.
DUCTED GRAVITY WAVES
Wave ducting: This website shows a time series of ducted waves taken from a geosynchronous satellite. Note that the width of he ducting layer is finite and small compared with the length of the duct. A detailed description of the wave event is given.
Undular bore:
This movie shows an undular bore described in Coleman etal, 2009. Download the movie here
LIDAR ducted wave:
This movie shows the ducted wave observed the High Resolution Doppler Lidar. Details are found in Newson and Banta, 2003. Download the movie here
A number of videos and photographs of air glow have been taken from space. An example is seen at Air glow from space .
A time-lapse film of inertia gravity waves marked by air glow are seen at Air glow gravity waves. A detained image of these waves is seen at Air glow ducted waves
A discussion of air glow gravity waves is given at Upper atmospheric gravity waves.
Several films of numerical simulations of gravity waves and turbulence are found at Wave-turbulence simulations. This website made available by David Fritts of the Colorado Atmospheric Research Associates. The website also offers research papers.