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The Journal of Weather Modification 2002 Texas Weather Modification Scientific Management Seeded Control Simple Ratio Increase Prec. Mass 1439.3 kton 667.4 kton 2.16 (1.89) 116 (89) After modeling the increase dropped to 89 % Volume 35 April 2003 WEATHER MODIFICATION ASSOCIATION North American Weather Our weather modification Consultants (NAWC) is the services span the full spectrum, world’s longest-standing from a) feasibility studies to b) private weather modification turn-key design, conduct, and company. evaluation of projects to c) total A recognized leader since technology transfer. By 1950, many consider us the combining practical technical world’s premier company in this advances with field-proven dynamic field. We are proud of methods and operational our sterling record and long list of expertise, we provide expert satisfied customers. assistance to water managers and users in the agricultural, governmental, and hydroelectric communities worldwide. together the best-suited We offer ground-based and/or methods, materials, equipment airborne, summer and winter systems and talent to provide operational and research you with the greatest project programs. Additional specialties value. in extreme storm studies, climatic When you put it all together, surveys, air quality, NAWC is the logical choice meteorological observing for high value weather systems, forensic meteorology modification services. Visit our and weather forecasting, broaden website at www.nawcinc.com for our meteorological perspective. more information, and call us at Whatever your weather (801) 942-9005 to discuss your modification needs, we can help. needs. You can also reach us We will tailor a project to your by email: [email protected]. specific circumstances, bringing North American Weather Consultants, Inc. ___________________________________________________________________________________________________________________________________________ The World’s Longest-Standing Private Weather Modification Company 8160 S. Highland Dr., Suite A-2 Sandy, Utah 84093 801-942-9005 - THE JOURNAL OF WEATHER MODIFICATION - COVER: The cover photograph shows all the components of the 2002 Texas Weather Modification Scientific Program Management, which includes the aircraft fleet, the WSR-78C radar system, the TITAN software and the output from the TITAN package. (See Ruiz-Columbie et al. on page 10.) PHOTO CREDITS IN THIS ISSUE: Photos of WMA Annual Meeting courtesy Tom Henderson and Andy Detwiler. EDITED BY: PRINTED BY: Steven K. Chai, Editor UNR Printing Services, Reno, Nevada USA Vicki Hall, Editorial Assistant Division of Atmospheric Sciences Desert Research Institute 2215 Raggio Parkway Reno, Nevada 89512-1095 U.S.A. Phone: (775) 674-7070 FAX: (775) 674-7007 PUBLISHED BY: The Weather Modification Association Additional copies of the Journal of Weather P.O. Box 26926 Modification are available for Fresno, California 93729-6926 U.S.A. U.S. $50 each - Volume 35 (either printed or CD version) Phone & FAX: (559) 434-3486 U.S. $60 each - Volume 35 (both printed and CD version) email: [email protected] U.S. $10 each (Volume 1-34, CD version only) U.S. $360 complete set of all 34 volumes/36 issues (CD version only) Membership information is available by Current Membership Cost per Year: contacting the WMA Association at the Fresno, Corporate Member $200 California, Address shown above. Indivudal Member $55 Retired Member $30 Student Member $15 Honorary Member $0 ISBN: 0739-1781 - THE JOURNAL OF WEATHER MODIFICATION - WEATHER MODIFICATION ASSOCIATION VOLUME 35 APRIL 2003 TABLE OF CONTENTS: PAGE THE WEATHER MODIFICATION ASSOCIATION .............................................................. iv PRESIDENT'S MESSAGE and EDITOR'S MESSAGE ....................................................... v Tom DeFelice and Steven K. Chai REMEMBERING A TRUE PIONEER IN WEATHER MODIFICATION ROBERT D. ELLIOTT 1914-2002......................................................................................... vii - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - REVIEWED SECTION – 2002 ADVENTURES, VENTURES, AND MISADVENTURES OF WEATHER MODIFICATION IN TEXAS................................................................................................... 10 Arquimedes Ruiz-Columbié, Dale L. Bates, and Orlando Nuñez-Russis REEXAMINATION OF HISTORICAL REGRESSION ANALYSIS APPLIED TO A RECENT IDAHO CLOUD SEEDING PROJECT.................................................................. 25 Arlin B. Super and James A. Heimbach, Jr. - NON-REVIEWED SECTION – NEW ASSESSMENT OF THE ECONOMIC IMPACTS FROM SIX WINTER SNOWPACK AUGMENTATION PROJECTS ........................................................................................... 41 Thomas J. Henderson THE KINGS RIVER WEATHER RESOURCES MANAGEMENT PROGRAM.................... 45 Thomas J. Henderson ESTIMATIONS OF DOWNWIND CLOUD SEEDING EFFECTS IN UTAH ........................ 52 Mark E. Solak, David P. Yorty, and Don A. Griffith CLOUD SEEDING IN LIBYA ............................................................................................... 59 Younis Al-Fenadi A BRIEF COMMENT ABOUT ERGODICITY AND ROSENFELD-LENSKY METHOD ...... 63 Arquimedes Ruiz-Columbié REPLY TO “A BRIEF COMMENT ABOUT ERGODICITY AND ROSENFELD-LENSKY METHOD”...................................................................................... 67 Daniel Rosenfeld ii - THE JOURNAL OF WEATHER MODIFICATION - WEATHER MODIFICATION ASSOCIATION VOLUME 35 APRIL 2003 Table of Contents, continued - WEATHER MODIFICATION ASSOCIATION - GENERAL INFORMATION - ARTICLES OF INCORPORATION OF THE WEATHER MODIFICATION ASSOCIATION 69 STATEMENT ON STANDARDS AND ETHICS FOR WEATHER MODIFICATION OPERATORS ........................................................................................... 72 QUALIFICATIONS AND PROCEDURES FOR CERTIFICATION ...................................... 74 WMA CERTIFIED WEATHER MODIFICATION OPERATORS/MANAGERS AND HONORARY MEMBERS ............................................... 76 WEATHER MODIFICATION ASSOCIATION OFFICERS AND COMMITTEES ................. 77 WMA AWARDS - SCHAEFER AWARD, THUNDERBIRD AWARD, INTERNATIONAL AWARD, BLACK CROW AWARD.......................................................... 78 WMA MEMBERSHIP DIRECTORY - INDIVIDUAL AND CORPORATE MEMBERS ..................................................................... 82 JOURNAL OF WEATHER MODIFICATION - 37 AVAILABLE PUBLICATIONS ................ 88 HISTORIC INDEX OF PUBLISHED PAPERS IN THE JOURNAL OF WEATHER MODIFICATION, VOL. 1, NO. 1 (March 1969) THROUGH VOL. 34, No. 1 (Apr 2002) ................................. 90 JOURNAL NOTES, ADVERTISEMENT INFORMATION, SCHEDULED WMA MEETINGS - 2002/2003 ..................................................................... 125 AUTHOR'S GUIDE .............................................................................................................. 126 ADVERTISEMENTS iii THE WEATHER MODIFICATION ASSOCIATION The Weather Modification Association was organized in 1950 to develop a better understanding of weather modification among program sponsors, the operators and members of the scientific commu- nity. In 1966, the first suggestion for a professional journal was proposed and Volume 1, No. 1, of the Journal of Weather Modification was published in March 1969. This historic publication now includes 35 volumes (37 issues). Originally called the Weather Control Research Association, the name of the organization was changed to the Weather Modification Association in 1967. During its 48-year history, the Association has: • Pressed for sound research programs at state and federal levels. • Promoted a better understanding of weather modification for beneficial use. • Acted as a disseminating agent for literature. • Provided extensive testimony before many federal, state and local committees and agencies in regard to all aspects of weather modification research and operations. • Assumed an active role in the promotion of policy statements concerning all aspects of weather modification. • Developed active positions on ethics, minimum standards for operations, and a strong certifi- cation program for operators and managers. • Published the Journal of Weather Modification, the only professional journal in the world to- tally dedicated to the operational, societal, economic, environ-mental, legal and scientific as- pects of weather modification. The Journal is published annually and papers are always welcome for consideration in either the reviewed or non-reviewed sections. A nominal charge of $50 per page is made for each page published in the final double-column format of the Journal. An additional fee of $120 per page is charged for color pages; this fee is charged for all papers, foreign and domestic. The general membership is open to all individuals and organizations who have an interest in any aspect of weather modification. The classes of membership and the present annual dues are: Corporate: $200 Individual: $ 55 Retired: $ 30 Student: $ 15 Honorary: $ 0 Additional information on the individual classes of membership can be found in the Articles of Incorporation presented in a later section of this Journal. Applications for membership on a calendar year basis, as well as additional information, can be obtained by writing to WMA at the permanent address of the Association: WEATHER MODIFICATION ASSOCIATION P. O. Box 26926 Fresno, CA 93729-6926 USA Phone and FAX: 559-434-3486 Email: