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Back to: "V"visibility
- Definição1
- The ability, as determined by atmospheric conditions and expressed in units of distance, to osee and identify prominent unlighted objects by day, and prominent lighted objects by night. Visibility is reported in statute miles, hundreds of feet, or meters.
- Fonte1
- CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 3 to the Convention on International Civil Aviation. Meteorological Service for International Air Navigation: parts I and II. 18th ed. Montreal, 2013.
- Nota adicional1
- Acronym in English: VIS.
- Nota adicional2
- Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
- Contexto
- Aeronautical meteorological stations shall make routine observations at fixed intervals. At aerodromes, the routine observations shall be supplemented by special observations whenever specified changes occur in respect of surface wind, visibility, runway visual range, present weather, clouds and/or air temperature.
- Subárea1
- Aeronautical Meteorology
- Related Term
- flight visibility
- ground visibility
- low visibility procedures
- prevailing visibility
- runway visibility value
- vertical visibility
- Português
- visibilidade