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.

Usage

AMDAR transmissions are most commonly used in 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.

External links

Earth-based meteorological equipment and instrumentation

Earth-based meteorological observation systems and weather stations

General

Aircraft report (AIREP) Automated airport weather station Automatic weather station (AWS) Binary Universal Form for the Representation of meteorological data (BUFR) Dropsonde Hurricane Hunters Mesonet Meteorological Aerodrome Report (METAR) Pilot report (PIREP) Weather ship

By region

Worldwide	Aircraft Communication Addressing and Reporting System (ACARS) Aircraft Meteorological Data Relay (AMDAR) Argo Automated Meteorological Data Acquisition System (AMeDAS) Deep-ocean Assessment and Reporting of Tsunamis (DART) FluxNet Project (FluxNet) Global Atmosphere Watch (GAW) Global Sea Level Observing System (GLOSS) Prediction and Research Moored Array in the Atlantic (PIRATA) Research Moored Array for African-Asian-Australian Monsoon Analysis and Prediction (RAMA) Tropical Atmosphere Ocean project (TAO/TRITON) Voluntary observing ship program

United States	Citizen Weather Observer Program (CWOP) Coastal-Marine Automated Network (C-MAN) NEXRAD radar Snow Telemetry (SNOTEL) Remote Automated Weather Station (RAWS) Road Weather Information System (RWIS) Tropospheric Airborne Meteorological Data Reporting (TAMDAR)

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