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<br />~ <br /> <br />CONTENTS - Continued <br />TABLES - Continued <br /> <br />Table Page <br /> <br />4 Listing of SCS snow measurement sites used in analysis of the southeast <br />Idaho target area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30 <br />5 NA WC AgI generator effectiveness values for natural draft conditions <br />observed in the Colorado State University Cloud Simulation Laboratory <br />with a liquid water content of 0.5 g m-3 - April 1982 ........................... 34 <br /> <br />FIGURES <br />Figure Page <br /> <br />1 Plot of April 1 SWE for the 30 years indicated: Atlanta Summit <br />target versus Bear Saddle control .......................................... 5 <br />2 Map of the NAWC-designated Boise target area showing the locations <br />of AgI seeding generators and snow measurement sites . . . . . . . . . . . . . . . . . . . . . . . " 10 <br />3 Plot of average April 1 SWE for the years indicated for eight <br />Boise target sites versus eight upwind control sites ...... . . . . . . . . . . . . . . . . . . . . .. 12 <br />4 Similar to figure 3, but without control sites 3 and 8 .., . . . . . . . . . . . . . . . . . . . . . . .. 14 <br />5 Similar to figure 4, but for the five Boise target sites above <br />7000 feet elevation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15 <br />6 Plot of average differences between April 1 and January 1 SWE for <br />eight Boise target sites versus four upwind control sites ........................ 17 <br />7 Similar to figure 3 except average April 1 SWE from four sites downwind <br />of the Boise target versus the average of six upwind control sites. . . . . . . . . . . . . . . . " 18 <br />8 Map of the upper Snake and Bear target areas showing the locations <br />of AgI seeding generators and snow measurement sites . . . . . . . . . . . . . . . . . . . . . . . " 20 <br />9 Similar to figure 3 but for 12 northern upper Snake target sites <br /> <br />versus 14 control sites ................................... . . . . . . . . . . . . . . . 22 <br /> <br />10 Similar to figure 9 but for nine northern upper Snake target sites <br />above 6500 feet and seven control sites that individually had <br />R-values of 0.865 or higher with the target .................................. 24 <br />11 Plot of average April 1 SWE from three northern upper Snake target <br />sites versus four control sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 <br />12 Similar to figure 10 but for 22 southeast Idaho target sites versus <br />12 control sites that individually had R-values exceeding 0.80 with <br /> <br />the target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 <br /> <br />13 Similar to figure 12 but for the average of target sites 29, 41, and <br />49 versus the average of control sites 7 and 43 ............................... 31 <br />14 Frequency distributions of daily snowfall events measured at six <br />SNOTEL sites in and east of the Boise target against the daily <br />average temperature at the 7900-foot elevation Bear Canyon SNOTEL ............. 36 <br /> <br />APPENDIXES <br /> <br />Appendix <br /> <br />A Listing of all target and control snow measurement sites <br />used in analysis of the 1992-1993 Idaho cloud seeding program . . . . . . . . . . . . . . . . . . . 45 <br />B Boise Area Trip Report ................................................. 48 <br /> <br />IV <br />