View source for Aircraft Meteorological Data Relay

'''Aircraft Meteorological Data Relay''' ('''AMDAR''') is a program initiated by the [[World Meteorological Organization]]. 
AMDAR is used to collect meteorological data worldwide by using commercial [[aircraft]].

Data is collected by the aircraft navigation systems and the onboard standard [[temperature]] and [[static pressure]] probes.
The data is then preprocessed before linking them down to the ground either via [[VHF]] communication ([[ACARS]])
or via [[satellite]] link [[ASDAR]].

A detailed description is given in the AMDAR Reference Manual (WMO-No 958) available from the [[World Meteorological Organization]], 
[[Geneva]], [[Switzerland]]<ref>{{cite web |title=Aircraft Meteorological Data Relay (AMDAR) Reference Manual |url=https://library.wmo.int/doc_num.php?explnum_id=9026 |id=WMO-No. 958 |publisher=World Meteorological Organization |date=2003}}</ref>

== Usage ==
AMDAR transmissions are most commonly used in [[numerical weather prediction|forecast models]] as a supplement to [[radiosonde]] data, to aid in the plotting of upper-air data between the standard radiosonde soundings at 00Z and 12Z.

==See also==
* [[Solar-powered aircraft]]

==References==
{{Reflist}}

{{Meteorological equipment}}
{{Earth-based meteorological observation}}

[[Category:Meteorological data and networks]]
[[Category:Meteorological instrumentation and equipment]]


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