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surface observation
Definição1
An aviation weather report describing the weather conditions at a specified location and at a specified time, as observed from the ground. Regular observations are made on the hour, and special observations are made as necessary to report significant change in the weather.
Fonte1
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Definição2
An evaluation of the state of the atmosphere as observed from a point at the surface of the earth, as opposed to an upper-air observation.
Fonte2
AMERICAN METEOROLOGICAL SOCIETY. Glossary of meteorology. [S.l., última modificação 05 oct. 2015]. Disponível em: < http://glossary.ametsoc.org/wiki/Main_Page >. Acesso em: 23 fev. 2022.
Fonte3
WORLD METEOROLOGICAL ORGANIZATION. Guide to meteorological instruments and methods of observation. Geneva, 2012. (WMO, n.8).
Nota Adicional1
This term is applied mainly to observations that are taken for the primary purpose of preparing surface synoptic charts. Major types of surface observation are synoptic weather observation, aviation weather observation, and marine weather observation. Climatological observations may also be included.
Contexto
It is preferable that the operator (or automated system) should make the surface observation immediately after the balloon release rather than prior to the release.
Subárea
Aeronautical Meteorology
Variante
surface weather observation
Français
observation en surface