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<br />CONTENTS - CONTINUED <br /> <br />TABLES - CONTINUED <br /> <br />Table Page <br /> <br />8.4 SF" plume characteristics from site d7 as observed by aircraft for ridge pass ......... 63 <br />8.5 SF" plume characteristics from site d9 as observed by aircraft for ridge pass ......... 63 <br />8.6 SF,:; plume characteristics from site d7 as observed by aircraft for dowmvind track. . . . . 65 <br />8.7 SF6 plume characteristics from site d9 as obsen;ed by aircraft for dO\"-nwind track. _ . . . 65 <br /> <br />FIGURES <br /> <br />Figure <br /> <br />2.1 LOREP project area and location offield operations and observation equipment. ....... 5 <br />2.2 Em-ironmental sensors mounted on tower at a mountaintop weather station . . . . . . . . . . 6 <br />2.3 LOREP target area showing 100-m contours of terrain .......................... I <br />2.4 Typical dispenser site installation showing tanks and dual tower assembly ........... 9 <br />2.5 Rawinsonde tracking antenna at the Johnsville site. . . . . . . . . . . . . . . . . . . . . . . . . . .. 10 <br />2.6 Locations of propane seeding dispensers on the Sierra crest and downwind <br />precipitation gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 <br />2.7 Typical precipitation gauge site showing shielded gauge and GOES antenna .. . . . . . . . 13 <br />2.8 Example of vertically integrated liquid water (bottom) and water vapor (top) obseITed <br />by the radiometer on February 18, 1992, over Johnsyille ........................ 16 <br />2.9 :\Iicrowave radiometer (trailer) located at Jackson Creek site. . . . . . . . . . . . . . . . . . . .. 17 <br />2.10 Radar wind profiler at Blairsden site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 18 <br />3.1 XOA-'\. King-Air C-90 research aircraft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 <br />3.2 Xominal flight tracks used by the XOAA research aircraft during the 1993 tracer and <br />seeding experiments superimposed over the project area ........................ 22 <br />4.1 Example of GLIDE model output. . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 <br />5.1a \Yater year (Oct. 1 to Sept. 30) averages derived from the Red Hill mountaintop <br />icing station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 <br />5.1b Same as a) but for :\It. Hough ........................................... _ 29 <br />5.2 :\Iasses of growing ice crystals at '-arious times as a function of temperature . . . . . . . . . 30 <br />5.3 Terminal speeds of ice crystals and snowflakes ............................... 31 <br />6.1 Time-height plot of Blairsden hourly profiler consensus wind vectors for <br />January 24. 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 <br />6.2 Precipitation measured in the gauge network for January 24, 1994 ................ 34 <br />6.3 Comparison of the hourly profiler winds with the rawinsonde winds for 1700 LTC <br />(0900 P.s.t) on January 24, 1994 .......................................... 35 <br />6.4 Rawinsonde deri'-ed vertical velocity vectori'; along path of ascending balloon for <br />1700 UTC (0900 P.s.t.) on January 24. 1994 . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . 37 <br />6.5 The 24-h wind profile from the profiler along with the observed precipitation <br />in the gauge network for February 7', 1994 (LTC) .................... _ . . . . . . . . 38 <br />6.6 Comparison of the hourly profiler winds with the rawinsonde ,,,"inds for 0600 and <br />1100 LTC on February 7, 1994 ........................................... 39 <br />6.7 The 24-h wind profile from the profiler along with the observed precipitation <br />in the gauge network for February 18, 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 <br />6.8 Comparison of the hourly profiler winds with the rawinsonde winds for 0000 and <br />0500 GTC on February 18, 1994 .......................................... 42 <br />7.1 Gauge network and time lag used for each gauge in the analysis of seeded and <br />nonseeded periods ................... _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 <br /> <br />viii <br />