Abbreviations
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A AC Altocumulus AD Aerodrome AGL Above ground level AIMMS Aircraft Integrated Meteorological Measurement System AMD Amend or amended AMSL Above mean sea level AOD Aerosol Optical Depth APR April AS Altostratus ASR Altimeter setting region ATD