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Last modified
7/28/2009 2:27:19 PM
Creation date
10/1/2006 2:10:53 PM
Metadata
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Template:
Weather Modification
Applicant
Don Griffith North American Weather Consultants, Inc.
Sponsor Name
City and County of Gunnison
Project Name
Cloud Seeding Evaluation
Title
The Development, Conduct and Evaluation of a Cloud Seeding Program for the Gunnison River Basin, Colorado During the 2003-2004 Season
Prepared For
City and County of Gunnison
Prepared By
North American Weather Consultants
Date
8/1/2004
County
Gunnison
Weather Modification - Doc Type
Report
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<br />It <br />. <br />. <br />It <br />. <br />It <br />. <br />It <br />It <br />. <br />It <br />It <br />It <br />t <br />It <br />t <br />t <br />, <br />t <br />t <br />. <br />t <br />t <br />t <br />t <br />t <br />. <br />t <br />t <br />t <br />t <br />t <br />. <br />. <br />. <br />. <br />. <br />. <br />I <br />I <br />, <br />I <br />, <br /> <br />B. The Colorado Avalanche Center issues an avalanche forecast warnmg for <br />avalanche areas located in the target areas, or <br />C. The Director of the Colorado Water Conservalion Board or the project sponsors <br />order suspension of seeding for any reason. <br /> <br />In addition. seeding is to be suspended at any time the snol,l,'Pack water equivalents at <br />selected target SXOTEL sites exceed: 175% of average on Dec. IS1, 175% of average on <br />Jan. I ~l. 160% of 3\"Crage on Feb. 1'1, 150% of 3\"Crage on ~.tar. 1 'I and 140% of average <br />on Apr. 1'1, <br /> <br />Table 2-1 <br />:"'1\ \"C "'inter Cloud S{'edin2 Criteria <br /> <br />I) CLOUD BASES ARE BELOW THE ~10UNTAIN <br />BARRIER CREST. <br /> <br />2) LOW-LEVEL WIND DIRECTIONS AND SPEEDS <br />THA T WOULD FAVOR THE MOVEMENT OF THE <br />SILVER IODIDE PARTICLES FROM THEIR RELEASE <br />POINTS INTO THE INTENDED TARGET AREA. <br /> <br />3) NO LOW LEVEL ATMOSPHERIC INVERSIONS OR <br />STABLE LAYERS THA T WOULD RESTRICT THE <br />VERTICAL ~10VEMENT OF THE SILVER IODIDE <br />PARTICLES FRml TH E SURFACE TO AT LEAST <br />THE -5 C (23 F) LEVEL OR COLDER. <br /> <br />-I) THIPERATURE AT MOUl\'TAIN BARRIER CREST <br />HEIGHT IS -5 C (23 F) OR COLDER. <br /> <br />5) TE~IPERA TURE AT THE 700-~1B LEVEL <br />(APPROXI~IATELY 10.000 FEET) IS WAR~IER THAN <br />-15 C (5 F). <br /> <br />3 <br />
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