Abstract: Since 1981 the Institute of Atmospheric Optics started regular airborne sounding of the atmosphere. As a result vast observational materials has been compiled during the last decade. In fact three generations of computers changed in the course of airborne missions onboard, first IL-14 and then AN-30 aircrafts. Therefore the data have been stored in different formats and on different data media. In this connection it happened to be an urgent task at present to rewrite the whole data bulk in one an the same format. Thus created database involves three types of data sets, i.e. profiles acquired during the ascends and descends, data collected along horizontal flights, and data on chemical composition of air including data obtained with analytical techniques in laboratory. This database has been included into the list of databases at the Information Center of the National Committee of the Russian Academy of Sciences. During the period from 1989 till 1991 several ecological surveys have been performed with an 'Optik E' airborne laboratory on board an AN-30 aircraft over a number of cities. The database compiled during these missions has similar to the above database structure. It differs from that by additional blocks of information on flight routes necessary for mapping air pollutions. Data sampled inside stack plumes from plants with the aircraft and data collected with a ground-based mobile station also differ it from that database. !4
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