Laserfiche WebLink
<br />TABLE OF CONTENTS <br /> <br />Page <br /> <br />Executive Summary ..... ................................ ........... ................................. ............................ ...... i <br /> <br />Table of Contents ....... ..................... ........... .......... .............. ........... ................ ... ........... ............... iv <br /> <br />1. Introduction........................................................................................................................... 1 <br /> <br />2. Summary of Findings Regarding SL W Cloud ...................................................................... 4 <br />3. Summary of Findings Regarding Seeding Methods .............................................................. 7 <br />4. Seeding by Expansion of Liquid Propane ............................................................................. 8 <br />5. Characteristics of Supercooled Liquid Water Cloud ............................................................. II <br />6. Transport and Dispersion of Ground Seeding with Emphasis on Valley Releases ............... 15 <br />6.a. Seeding from Valley Locations ...................................................................................... 17 <br />6.b. Silver in Snow Concentrations ....................................................................................... 20 <br />6.c. Seeding from High Elevation Locations......................................................................... 22 <br />7. Propane Seeding Potential in Colorado ................................................................................. 23 <br /> <br />8. References ............... ... .......... ........................ ...... ......... .......... .......... .......... ..................... ....... 26 <br /> <br />Appendix A: Brief Summaries of Selected Published Articles and Reports Dealing with SL W <br />Cloud Characteristics .................... ........................ ............... .......... ....... ............................. ........ 32 <br /> <br />Appendix B: Brief Summaries of Selected Articles and Reports Dealing with the Transport and <br />Dispersion of Ground-released Seeding Agents and Tracers ..................................................... 45 <br /> <br />Appendix C: Application of Utah Weather Modification Research Results to Colorado <br /> <br />Feasibi lity Study....... ........... ....... .... ......................,. ............. ...... ...... ..... ..... ...... ........... ................ 53 <br /> <br />Tables <br /> <br />Table Page <br /> <br />AI. Comparison of mountain-top temperatures with SL W present at three Colorado <br /> <br />locations...................... ....................... .........., .............. .......... ........ ..................................... 36 <br /> <br />C 1. Stability classes of storm soundings' lowest reported layer. .............................................. 57 <br /> <br />C2. Stability classes of storm soundings' lowest reported layer. .............................................. 60 <br /> <br />Figures <br /> <br />Figure <br /> <br />Page <br /> <br />Temporal distribution of ice crystal concentration (top) and precipitation intensity <br />(bottom), both calculated from the mountain-top observatory 2D-C probe, and acoustical <br />counter measurements of AgI, effective at -20oC (middle panel). .................................. 10 <br /> <br />C 1 Percentiles of Mt. Pleasant and DOT temperatures for hours which had vertically- <br />integrated SL W 2: 0.05 mm during the period mid-January to mid-March 1991............. 56 <br /> <br />C2 Wind speeds and directions for Utah Wasatch Plateau investigations in the Sanpete Valley <br /> <br />at Mount Pleasant. ........ ............... ........... ........................ ........................ ........................... 61 <br /> <br />iv <br />