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<br />2 <br /> <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />Mr. Joe Busto, CWCB Flood Protection and Weather Modification <br />Permitting Section, served as the Pr9ject Manager for the Colorado WOMP <br />research project. He was the point of contact between the CWCB and <br />Reclamation, and procured the services of Mr. Ross Williams for GIS support. He <br />oversaw the administration of the grc;mt funds at the CWCB, and the related <br />Interagency Agreement with CSU. He also participated in research project <br />coordination and meetings with Reclamation, CSU, and OW. <br /> <br />Mr. Curt Hartzell, CCM, assisted Joe Busto in the program management, <br />closely overseeing activities to ensure that the program objectives were being <br />achieved. He coordinated project activities between the CWCB, the CSlJ <br />research team, the OW Operational Cloud Seeding Program (Mr. Steve <br />Schmitzer), and the OW program's cloud seeding contractor, Western Weather <br />Consultants, LLC (Mr. Larry Hjermstad). <br /> <br />Dr. Bill Cotton was the Principal Investigator (PI) for the CSU research <br />team (Mr. Ray McAnelly, Dr. Gustavo Carrie, Dr. Paul Mielke). Administrative <br />assistant Ms. Brenda Thompson monitored all CSU work task expenditures, <br />prepared and submitted invoices to the CWCB, and helped in the preparation of <br />project reports. <br /> <br />1.3 Current Status of Winter Orographic Cloud Seeding <br /> <br />There is ample evidence that seeding cold orographic clouds containing <br />supercooled liquid water with a chemical agent such as silver iodide can form ice <br />crystals that may fall as snow. Water managers can be at least cautiously <br />optimistic that a viable technology is emerging for seeding winter orographic <br />clouds for snowfall increase - if the seeding program is properly designed and <br />conducted. <br /> <br />The most recent policy statement on weather modification by the <br />American Meteorological Society (1998) states that, "There is statistical evidence <br />that precipitation from supercooled orographic clouds (clouds that develop over <br />mountains) has been seasonally increased by about 10%. The physical cause- <br />and-effect relationships, however, have not been fully documented. <br />Nevertheless, the potential for such increases is supported by field <br />measurements and numerical model simulations." <br /> <br />The recently updated (2005) Weather Modification Association (WMA) <br />Capability Statement on Weather Modification includes the following: "The <br />capability to increase precipitation from wintertime orographic cloud systems has <br />been demonstrated successfully in research experiments... Technological <br />advances have aided winter precipitation augmentation programs. Fast-acting <br />silver iodide ice nuclei, with higher activity at warmer temperatures, have <br />increased the capability to augment precipitation in shallow orographic cloud <br />systems. Numerical modeling has improved the understanding of atmospheric <br />