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<br />the central Colorado Rocky Mountains for the 2003':~004-winter season. <br /> <br />The goal of the project was to pro\"idc a physical evaluation of cloud seeding using CSU's Regional <br />Atmospheric Modeling System (RAMS). This project will advance the science of cloud seeding in <br />Colorado because combining atmospheric models with seeding operations can refine the way <br />wintenime programs are operated. <br /> <br />The project was originally scheduled to be completed Dec. 31. but will continue through February <br />2005. <br /> <br />The project team has also been asked by Reclamation. which helped fund the study. to present their <br />findings at the 85lh Annual American Meteorological Society meeting in San Diego in January 2005. <br />We intend to make a similar presentation to you in \farch or ,\lay :2005. Current model runs and <br />infomlation about this study are anlilable on the project websitc at: <br />httP;!irams.atmos.colostate.edu/clsceding/. <br /> <br />Statcwide Cloud Sl'cdint: Feasibilily Study: Using Severance Tax funds. we have begun a study to <br />e.xamine Colorado's terrain and develop a stann <br />system database to detennine which areas have <br />the best conditions for cloud seeding. This study <br />will use super cooled liquid water content. <br />temperature. Icrrains and other parameters to <br />detemline which areas in Colorado have the <br />highest potential. <br /> <br />We recently met with HOR Engineering and <br />repn::sclllatiws from Reclamation's River <br />Systems and Meteorology Group to expand the <br />scope ofser\"iccs of this project and refine our <br />analysis. We will also likely bring Dr. Edmond <br />Hol)"Tod from Reclamation onto our project <br />team. Dr. Holyrod worked under Irving <br />Langmuir and Vince Shafer (known as the <br />founding fathers of cloud sceding) and has <br />decades of cloud seeding research background. <br /> <br />Figure I demonstrates that radar soundings. <br />terrain. temperature and moisture conlelll can ne <br />used to detenninc seeding potential. (For those <br />viewing this repon from our web site. the red. <br />vellow. and ureen bands arc fa,.orahle <br />. , <br />conditions. blue is unfavorable). <br /> <br />In a pre,"jous study. Dr. Holroyd compiled a data <br />set for the Upper :\'orth Platte Basin and Quebec. <br />Canada. This study will expand those data sets to <br />encompass 12 major snowlield areas in Colorado <br />as seen in Figure 2. <br /> <br /> <br />- <br />="-':'7O":"r.'r~~lf-~" <br /> <br />- <br />'-"''''-- <br /> <br />We belie\-e this study will show that there is good seeding potcllIial in southwestern Colorado and in <br />Ihe Central Rocky ~Ioulllains. <br /> <br />This study could also provide support for the science of cloud seeding as a water resource management <br />12 <br /> <br />. <br /> <br />. <br /> <br />. <br />