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  • tropospheric — troposphere ► NOUN ▪ the lowest region of the atmosphere, extending from the earth s surface to a height of about 6 10 km (the lower boundary of the stratosphere). DERIVATIVES tropospheric adjective. ORIGIN from Greek tropos turning …   English terms dictionary

  • Tropospheric scatter — (or troposcatter) is the scattering of distant TV and FM radio stations by the troposphere so that they travel farther than the line of sight. This effect sometimes allows reception of stations up to a hundred miles away.The phenomenon has been… …   Wikipedia

  • Tropospheric Emission Spectrometer — or TES is a satellite instrument designed to measure the state of the earth s troposphere. It is an infrared Fourier Transform spectrometer and provides key data for studying tropospheric chemistry, troposphere biosphere interaction, and… …   Wikipedia

  • tropospheric scatter — ☆ tropospheric scatter n. scattering in the earth s troposphere, used in scatter communication at VHF and UHF for ranges beyond line of sight …   English World dictionary

  • Tropospheric ozone — [ thumb|Seasonal average concentrations of tropospheric ozone in Dobson units over the period 1979 to 2000. In June to August photochemical ozone production causes very high concentrations over the East Coast of the USA and China.] Ozone (O3) is… …   Wikipedia

  • Tropospheric wave — In telecommunication, a tropospheric wave is a radio wave that is propagated by reflection from a place of abrupt change in the dielectric constant, or its gradient, in the troposphere. In some cases, a ground wave may be so altered that new… …   Wikipedia

  • tropospheric propagation — Electromagnetic field propagation within the troposphere to achieve long range communication over hundreds of miles. In the lower part of the earth’s atmosphere, electromagnetic energy may be reflected/refracted within and between air masses of… …   Aviation dictionary

  • tropospheric scatter — Telecommunications. transmission of radio frequency signals that have been scattered from irregularities in the troposphere to locations hundreds of kilometers distant. [1950 55] * * * tropospheric scatter, a way of transmitting radio, television …   Useful english dictionary

  • tropospheric scatter/troposcatter — The propagation of electromagnetic waves by scattering as a result of irregularities or discontinuities in the physical properties of the troposphere. At the frequencies above 150 MHz, the atmosphere has a scattering effect on electromagnetic… …   Aviation dictionary

  • tropospheric wave — A radio wave that is propagated by reflection from a place of abrupt change in the dielectric constant or its gradient in the troposphere. In some cases, the ground wave may be so altered that new components appear to arise from reflections in… …   Aviation dictionary

  • tropospheric duct — troposferinis bangolaidis statusas T sritis radioelektronika atitikmenys: angl. tropospheric duct vok. Troposphärenkanal, m rus. тропосферный волновод, m pranc. conduit troposphérique, m …   Radioelektronikos terminų žodynas

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