Laserfiche WebLink
<br />t <br /> <br />" <br /> <br />Taking into account these dup1icative~ projects, table 1 provides infor- <br />mation on the weather modification acti.vities reported during the 3 Ylaars. <br />The figures show that the largest number of projects were carried out in <br />CY 1977, a year of severe water shortage in several regions of the country. <br /> <br />Table l.--Reported weather modification <br />activities in the United States <br />by calendar year <br /> <br /> Cy 1976 CY 1977 CY 1978 <br />Total reported activities 73 101 71 <br />Nondup1:lcative activities 61 89 59 <br />Nonfedera1 52 78 47 <br />Federal (all or in part) 9 11 12 <br /> <br />Opercltors and Sponsors <br /> <br />Table 2 shows the various types of opera.tors and sponsors associatE~dwith <br />weather modification activities durin\? the 3 years. The number of connnercia1 <br />operators decreased by 25 percent over the period; at the same time the <br />number of Federal operators (agencies) decreased by 50%. Further analysis <br />of the reports reveals that nearly 60 percent of the weather modification <br />activities in each year were conducted by only a few connnercia1 modifiers: <br />6 opE~rators in 1976, 4 in 1977, and 5 in 1978. In 1976, the connnerdLa1 <br />concern with the largest number of projects (13) used ground-based gen- <br />erators for cloud seeding. However, in 1977 and 1978, two companies <br />using aircraft seeding methods carried out more than 13 projects each. <br /> <br />:5 <br />