Meter Waves

Meter Waves

 

radio waves with wavelengths of 1–10 m (frequency, 3 X 107 to 30 X 107 hertz). In terrestrial radio communication they propagate for short distances as direct and ground waves. They can propagate for longer distances as tropospheric waves through reflection or scattering by inhomogeneities, and also as ionospheric waves by reflection from meteor trails (or by reflection from the ionosphere in years of maximum solar activity). They are used for communication with space vehicles because they pass through the earth’s ionosphere. Their passage through the earth’s atmosphere is accompanied by refraction, partial absorption, and rotation of the plane of polarization.

References in periodicals archive ?
"At 17:30, the storm, wind and 2-3 meter waves rose in the middle of the distance.
The storm is expected to peak Tuesday, with 100 kph winds kicking up 5 meter waves, accompanied by heavy rainfall and thunderstorms.
The Mediterranean Sea is predicted to be moderate to turbulent on Friday, with 2-2.5 meter waves and north-easterly surface winds.
For example with mild sea conditions (2-3 meter waves) peak power ranges between 300kW and 700kW.
Meteorological Department expert Arif Mahmood believed that the cyclone would create 6-8 meter waves. All the lower Sindh areas of Mirpurkhas, Badin, Thatta and others would have heavy rains and be hit by strong winds of 80-100 kilometers per hour on Saturday.
Seas are likely to remain rough, with 6-9 meter waves.
Espoo, Finland, September 13, 2012 --(PR.com)-- The Penguin wave energy converter survived first heavy storms in Orkney when the device was battered with over 12 meter waves. Even the mooring system appeared to work as designed.