A-TReC - Atlantic THORPEX Regional Cam…
AAMP - Asian-Australian Monsoon Panel
AARI - Arctic and Antarctic Research I…
AARS - Automatic Aircraft Reporting Sy…
ABC/M - Activity Based Costing and Man…
ABCN - Antarctic Basic Climatological…
ABL - atmospheric boundary layer
ABLE - Atmospheric Boundary Layer Expe…
ABSN - Antarctic Basic Synoptic Networ…
ACARS - Aircraft Communications, Addre…
ACC - Area Control Centre
ACCAD - Advisory Committee on Climate…
ACMAD - African Centre of Meteorologic…
ACMP - Advisory Committee on Marine Po…
ACSYS - Arctic Climate System Study
ADCP - Acoustic Doppler Current Profil…
ADEOS - Advanced Earth Observation Sat…
ADM - Advanced Dissemination Methods
AEM - Aeronautical Meteorology Divisio…
AeMP - Aeronautical Meteorology Progra…
AgM - Agricultural Meteorology Divisio…
AgMP - Agricultural Meteorology Progra…
AIMES - Analysis, Integration and Mode…
AIR - Aircraft Observation Unit
AIRS - Advanced Infrared Sounder
AIRS - Alliance Icing Research Study
AIRSS - Arctic Ice Regime Shipping Sys…
AIS - Aeronautical Information Service
ALACE - Autonomous Lagrangian Circulat…
ALECSO - Arab League Educational, Cult…