"REVIEWED" CLOUD SEEDING IN

ABSTRACT. The historic background and a current cloud seeding operations project in Chile are discussed. The present affected areas are located in northern and north-central Chile, which are very productive agricultural areas with extremes in annual precipitation totals. Recent cloud seeding efforts were initiated in November 1979 using airborne silver iodide pyrotechnics. The discussion on this recent effort covers the first two year period through October 1981. This mis-sion oriented program is not designed as a scientific experiment. However, some possible results are discussed. 1. HISTORY OF CLOUD SEEDING IN CHILE Chile is more than 2,600 miles long, yet its average width is less than 130 miles. Located between the Andes on the east and the Pacific Ocean on the west, it has a wide varietY of climates. In the north are some of the driest areas in the world and at some locations in the south rainfall is re