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<br />MS-230 (2-72)
<br />Bureau of Reclamation
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<br />TECHNICAL REPORT STANDARD TITLE PAGE
<br />
<br />1. REPORT NO, 12. GOVE~NMENT ACCESSION NO. ;~j; 3, RECIPIENT'S CATALOG NO,
<br /> ARI-76-l .',.',
<br />4. TITLE AND SUBTITLE S. REPORT DATE
<br /> COLORADO RIVER BASIN PILOT PROJECT October 1976 (published)
<br /> COMPREHENSIVE EVALUATION REPORT 6, PERFORMING ORGANI2:ATlON CODE
<br /> Five Winter Seasons 1970-71 to 1974-75
<br />7, AUTHOR(S) 8, PERFORMING ORGANI2:ATION
<br /> Robert D. Elliott, Russell W. Shaffer, REPORT NO.
<br /> Arnold Court, Jack F. Hannaford
<br />9. PERFORMING ORGANIZATION NAME AND ADDRESS 10, WORK UNIT NO.
<br /> Aerometric Research Inc.
<br /> 600 Norman Firestone Road 11. CONTRACT OR GRANT NO.
<br /> Santa Barbara Municipal Airport l4-06-D-7332
<br /> Goleta, California 93017 13, TYPE OF REPORT AND PERIOD
<br /> COVERED
<br />12. SPONSORING AGENCY NAME AND ADDRESS
<br /> Div. of Atmospheric Water Resources Manage- Final 1970-75
<br /> U. S. Bureau of Reclamation -
<br /> ment
<br /> Building 67, Denver Federal Center 14. SPONSORING AGENCY CODE
<br /> Denver, Colorado 80225 D-1200
<br />15, SUPPLEMENTARY NOTES
<br /> Dr. Arnold Court is with the California State University at
<br /> Northridge, California and Jack Hannaford is with Sierra Hydrotech
<br /> in Placerville, California
<br />16, ABSTRACT
<br /> The primary objectives of this evaluation have been to 1) test the
<br /> physical concepts of weather modification potential, and 2) test the
<br /> practical weather modification potential for an operations program, as
<br /> carried out in the Colorado River Basin Pilot Project during the five
<br /> winters of 1970-71 through 1974-75. The first objective is approached
<br /> through an investigation of nucleant dispersion based on wind flow, an
<br /> analysis of precipitation and rawinsonde data that is essentially diag-
<br /> nostic in character, and an analysis of surface runoff related to pre-
<br /> cipitation. The second objective is carried out through detailed
<br /> analyses of precipitation and other records for all five years of the
<br /> pilot project operation. Conclusions and recommendations are presented
<br /> which can serve as guidance material for planning orographic research
<br /> projects.
<br />17, KEY WORDS AND DOCUMENT ANALYSIS
<br />a. DESCR IPTORS-- Atmosphere, Clouds, Meteorology, Nucleation, Orography,
<br /> Precipitation (atmospheric), River Basins, Runoff, Silver Iodide, Snow,
<br /> Snowpacks, Weather Modification. (Source: Thesaurus of Water Resources
<br /> Terms, Bureau of Reclamation, 1971)
<br />b, IDENTIFIERS--
<br /> San Juan Mountains, Colorado
<br />c, COSATI Field/Group
<br />18. DISTRIBUTION STATEMENT 19, SECURITY C,LASS 21. NO. OF PA GES
<br />Available from the National Technical Information Service, Operations (TH IS RE PORT) 641
<br /> UNC'LASSIFIED
<br />Division, Springfield, Virginia 22/51, 20. SECURITY CLASS 22, PRICE
<br /> (THIS PAGE)
<br /> UNCLASSIFIED
<br />
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