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synoptic observation
- Definição1
- A surface weather observation, made at periodic times (usually at three-hourly and six-hourly intervals specified by the World Meteorological Organization), of sky cover, state of the sky, cloud height, atmospheric pressure reduced to sea level, temperature, dewpoint, wind speed and direction, amount of precipitation, hydrometeors and lithometeors, and special phenomena that prevail at the time of the observation or have been observed since the previous specified observation.
- Fonte1
- 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.
- Fonte2
- WORLD METEOROLOGICAL ORGANIZATION. Guide to meteorological instruments and methods of observation. Geneva, 2012. (WMO, n.8).
- Contexto
- When manually observed, the observation of elements other than pressure should be made within 10 minutes preceding the standard time for the synoptic observation, whereas atmospheric pressure should be read at the exact time or as close as possible to the standard time.
- Subárea
- Aeronautical Meteorology
- Français
- observation synoptique