The first field phase of AMTEX was conducted during 14–28 February 1974 in the vicinity of the Southwest Islands of Japan, with the operational control center at Okinawa. Investigators from Japan, Australia, and the United States participated in the experiment. The measurements and synoptic situation during the field program as well as some preliminary results are presented. The weather was characterized by a warm period from 14 to 23 February, followed by a cold period from 24 to 28 February when extensive modification of the continental air took place.

Plans for the 1975 field program, scheduled for 16 February to 3 March, are discussed. No major changes from the 1974 program are expected in 1975.

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Footnotes

1 The National Center for Atmospheric Research is sponsored by the National Science Foundation.