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<br />4. Pertinent Results from the Climax and Wolf Creek Pass <br />Investigation . . . . . . . . . . . . <br />a. Cloud top temperatures (500 mb). . . . <br />b. Moisture supply. . . . . . . . . . . . <br />c. Stability and baroclinic considerations. <br />d. Orographic effects. . <br />5. Discussion . . . . . . . <br />a. Cloud physics model. <br />b. General conclusions . <br /> <br />C. <br /> <br />Weather Modification Geography. <br /> <br />1. Site Selection for Pilot Project <br /> <br />2. Maps............ <br /> <br />D. <br /> <br />Weather Modification Climatology <br /> <br />,. <br /> <br />, 1. Surface Climatology. . . . . <br />a. Hourly precipitation. . . <br />(1) Hourly precipitation rates <br />(2) Diurnal variation of hourly precipitation. <br />(3) Number of hours of precipitation. <br />b. Daily precipitation . . . . . . . . . <br />, c. ' Storm duration . . . . . . . . . . . <br />d. Areal extent of precipitation during an episode. <br />e. Diurnal patterns of temperature during periods of precipitation <br />f. Variability of snow accumulation. . . . . . . . <br />g. Summary comments on the surface climatology . . . . . <br />2. Upper Air Climatology . . . . . . . . . . . . . . . . . . . <br />a. Upper air climatology as related to daily snowfall events <br />(1) Daily snowfall related to cloud top temperatures. <br />(2) Daily snowfall related to upper level airflow. . . . . <br />(3) Daily snowfall related to moisture supply . . . .'. . <br />(4) Daily snowfall related to equivalent potential temperature. <br />(5) Daily snowfall related to stability. . . . . . . . . . . . . <br /> <br />(6) Summary . . . . . . . . . . . . . . . . . . . . . . . . . <br />b. Upper air climatology related to excess snowfalls at Wolf Creek <br /> <br />, Pass '.' . . . . . . . . . . . . . . . . . . . <br /> <br />E. <br /> <br />Weather Modification Hydrology. <br /> <br />1. Introduction......... <br />2., Snowpack-Runoff Characteristics <br />3. Trends in Streamflow and Streamflow Records During the Past Sixty <br /> <br />Years ............................... <br />4. The Use of Snow Course Data for Evaluation of Weather Modification <br />5. Investigation of Flood Potential Resulting from Snowmelt <br />a. General discussion . . . . . . . . . . . . . . . . . <br />b. ,Flooding in Ouray, Colorado, area . . . . . . . . . <br />c. Snowmelt peak flow estimates for the San Juan area. <br /> <br />F. <br /> <br />Atmospheric Water Balance. <br /> <br />1. , Introduction ................ . . . . . . . . . . . <br />2. Atmospheric Water Balance as an Evaluation Technique for Weather <br />Modification Operations. . . . . . . . . . . . . . . . . . . . . . . <br />, a. An operation designed to include a randomization of seed - no-seed <br /> <br />days.. . . . . . . . . . . . . . . . . . . . . .' . . . . . . . <br />b. An operation designed to seed all possible precipitation events <br />3. The Atmospheric Water Balance as a Tool in the Daily Weather <br />Modification Operations. . . . . . . . . . . <br />4. The Limits of the Water Balance Technique. . . . . . . . . . . <br /> <br />iii <br /> <br />Page Numbers <br /> <br />15 <br />15 <br />15 <br />17 <br />19 <br />26 <br />26 <br />27 <br /> <br />27 <br /> <br />27 <br />39 <br /> <br />40 <br /> <br />40 <br />40 <br />40 <br />42 <br />45 <br />46 <br />46 <br />46 <br />51 <br />52 <br />52 <br />53 <br />53 <br />53 <br />55 <br />56 <br />57 <br />59 <br />59 <br /> <br />60 <br /> <br />62 <br /> <br />62 <br />63 <br /> <br />69 <br />69 <br />72 <br />72 <br />72 <br />73 <br /> <br />78 <br /> <br />78 <br /> <br />78 <br /> <br />78 <br />78 <br /> <br />79 <br />79 <br />