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vertical visibility
Sinônimos
VV
Definição1
The distance one can see upward into a surface-based obscuration. It is also the maximum height from which a pilot in flight can recognize the ground through a surface-based obscuration.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 4th ed. Newcastle: ASA, 2006.
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
Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
Contexto
Cloud amount, cloud type and height of cloud base shall be observed and reported as necessary to describe the clouds of operational significance. When the sky is obscured, vertical visibility shall be observed and reported, where measured, in lieu of cloud amount, cloud type and height of cloud base. The height of cloud base and vertical visibility shall be reported in metres (or feet).
Subárea1
Aeronautical Meteorology
Related Term
flight visibility
ground visibility
horizontal visibility
visibility
Português
visibilidade vertical