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upper-air data
Fonte1
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual of aeronautical meteorological practice. 10th. ed. Montreal, 2015. (Doc. 8896 AN/893).
Fonte2
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 3 to the Convention on International Civil Aviation: meteorological service for international air navigation: Part I: core SARPs: Part II: appendices and attachments. 18th ed. Montreal, 2013. (Annex 3).
Contexto
Automated meteorological reports from aircraft constitute an important source of upper-air data. They are especially useful in areas where ground-based observations are sparse or not available. Air-reporting is also useful in the observation of volcanic ash, wind shear and turbulence. A substantial proportion of upper-air wind and temperature information is obtained through the WMO aircraft meteorological data relay (AMDAR) programme based on the use of standard equipment carried on board most aircraft.
When upper-air data for grid points in digital form are made available for use by air traffic services computers, the transmission arrangements should be as agreed between the meteorological authority and the appropriate ATS authority.
Português
dados de altitude