Laserfiche WebLink
<br />. <br /> <br />.' <br /> <br />criteria that thle seeding ~n any year has a chance of making additional <br /> <br />snowfall. <br /> <br />Despite the exclusion of some clouds from the 1985 operational <br /> <br />seeding project it was necessary in the field research program to study <br /> <br />clouos in the excluded as well as included groups. It was important to <br /> <br />study the clouds which did not meet the seeding criteria since infor- <br /> <br />mation and understanding gained about them could suggest ways to seed <br /> <br />them in future operational projects and increase their snowfall. This <br /> <br />could have the effect of extending thE! seeding to more clouds and <br /> <br />increasing the amount of snowfall on the ground. It was equally impor- <br /> <br />tant to study the clouds which did ~!t the seeding criteria since <br /> <br />information and understanding gained about them could reveal better ways <br /> <br />to seed them or even that seeding some of them would not be effective. <br /> <br />Studying clouds in both groups should incr.ease our understanding of all <br /> <br />of them and, potentially, improve the specificity and effectiveness of <br /> <br />fu~ure seeding that may occur. The 1985 field research program, there- <br /> <br />fore, studied all clouds in the Tushar Mtns research area ~n either <br /> <br />group--those meE!ting the seeding criteria and those not meeting the <br /> <br />seeding criteria. This was a key feature of the research program. Data <br /> <br />were therefore collected at every feasible opportunity. <br /> <br />In view of the 'simultaneous conduct of the research program and <br /> <br />operational project two periods of time wcere defined: the STORM and the <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />e. <br /> <br />. <br /> <br />e' <br /> <br />. <br /> <br />Potential Seeding Period. <br /> <br />A STORM determined and coincided with a <br /> <br />period of research. <br /> <br />It occurred wheneVE!r there was significant cloud <br /> <br />. <br /> <br />cover in the TUi3har Mtns research area. Significant c loud cover meant <br /> <br /> <br />any cloud with ~l perceived non-zero probnbility of producing precipita- <br /> <br /> <br />tion on the Tushar Mtns. As a minimum this meant a broken to overcast <br /> <br />. <br /> <br />-l5- <br /> <br />