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upper-air observation
- Sinônimos
- upper-air sounding
- Definição1
- A measurement of atmospheric conditions aloft, above the effective range of a surface weather 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: 20 jun. 2022.
- Definição2
- An observation made in the free atmosphere either directly or indirectly.
- Fonte2
- WORLD METEOROLOGICAL ORGANIZATION. International Meteorological vocabulary. 2nd ed. Geneva, 1992. (WMO, n.182). Disponível em: < https://library.wmo.int/index.php?lvl=notice_display&id=220#.XeauGOhKiUk >. Acesso em: 20 jun. 2022.
- Fonte3
- WORLD METEOROLOGICAL ORGANIZATION. Guide to the global observing system. 2010 ed. Geneva, Switzerland, 2010. (WMO, n.488). ISBN 978-92-63-10488-5
- Nota adicional1
- This is a general term, but is usually applied to those observations that are used in the analysis of upper-air charts (as opposed to measurements of upper-atmospheric quantities primarily for research). Among the elements evaluated are pressure, temperature, relative humidity (e.g., by radiosonde aircraft observations), and wind speed and direction (e.g., by rawinsonde, aircraft, or wind profiling radars). Also, some mountain stations are high enough and exposed enough so that their observations may be included in the upper-air network at their elevation
- Contexto
- Upper-air observation is a complicated and costly activity which is undertaken to obtain data for a three-dimensional analysis of the atmosphere. There is, therefore, a need for rigorous working standards at each station which should be ensured by proper arrangements for station management and operation.
- Subárea
- Aeronautical Meteorology
- Related Term
- sounding
- Spanish
- observación en altitud