atmospheric absorption

atmospheric absorption

[¦at·mə¦sfir·ik əb′zȯrp·shən]
(geophysics)
The reduction in energy of microwaves by gases and moisture in the atmosphere.
References in periodicals archive ?
Ideally the School would like to perform the measurements under vacuum to eliminate the effects of atmospheric absorption from CO2 and water vapour.
As the satellite orbits at 650 kilometres above Earth, the FTS is poised to take sequences of atmospheric absorption spectra twice a day, during sunrise and sunset.
This would allow high data rate communications and reduce atmospheric absorption.
Within the MMW frequency range (30-300GHz), there are propagation windows located near 35, 94, 140, 220GHz, where the atmospheric absorption is relatively low.
The millimeter-wave W-band, however, experiences significant signal attenuation due to factors such as atmospheric absorption and rain, and there has been demand for high-output power amplifiers that can transmit a stable signal across distances ranging from a few kilometers to several tens of kilometers.
Atmospheric absorption of one of these gamma rays creates a short-lived shower of subatomic particles.
In the visible region, atmospheric absorption accounts for significant deviations of the solar spectrum from the thermal lineshape.
The measurements vary considerably from current theoretical calculations, Because water plays a key role in atmospheric absorption of the sun's energy, the new estimates look set to serve as the basis for future models of global climate.
Investigators of atmospheric absorption have measured thousands of solar wavelengths at which water vapor strongly sops up the incoming radiation.
The link budget facilities employ rain attenuation and atmospheric absorption prediction modeling even for low elevations.
3] Radio window: Typically with radio, as frequencies increase so does atmospheric absorption, thereby attenuating the signal so that it can carry less.

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