Laserfiche WebLink
<br />storms; in an experiment conducted and analyzed in the same way, <br />during seasons with storm frequencies similar to those actually <br />experienced, the project would have had to run for about eight <br />winter seasons. At a significance level of 10%, there would <br />have been an even chance of success after a total of about six <br />similar winters. <br />The randomized experiment on which these conclusions are <br />based ran for three winter seasons -- a significantly shorter <br />time than is usually thought to be desirable. For this reason, <br />and because in the preliminary analysis so far carried out, tne <br />effects of seeding appear only in a somewhat diluted form, it is <br />perhaps not surprising that statistical significance was not <br />achieved. <br />Nevertheless, the results appear encouraging enough to <br />amply justify further analysis of the existing data, and <br />serious consideration of a continuation of the experiment. If <br />such a continuation were undertaken, it would be important to <br />ensure that seeding was carried out in coordination with neigh- <br />boring seeding projects, so that any downwind effects on <br />precipitation in western Nevada could be identified. <br /> <br />A-4 <br />