WMOD00320

• Project Name: Colorado River Basin Pilot Project
• Title: Comprehensive Evaluation Report - Five Winter Seasons 1970-1971...1974-1975
• Date: 10/1/1976
• Weather Modification - Doc Type: Report

Figures

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Times of seeding decisions by months and day of week for

1971-1975 . . . . . . . . . . . . . . . . . . . . . . .

Experimental days grouped into three 57-day "seasons" .

Water content at end of March, 1936-1976, of snow
courses on Wolf Creek Pass . . . . . . . . . . .

Ratios of average daily precipitation, 1970-75, on 71
treated days to that on 76 control days . . . .

Ratios of average daily precipitation, 1970-75, on 71
treated days to that on 54 "clear" days . . . .

Treat-control ratios of 3-hour total precipitation at
four sets of stations, by years 1970-71 to 1974-75 .. . . .

Map showing location of precipitation gages, snow courses,
stream gaging stations, number and boundary of subwatersheds,
and precipitation-topographic profiles . . . . . . . . . .

Precipitation-topographic profile Ignacio-Cochetopa Creek. . . .

Precipitation-topographic profile Pagosa Springs-
Sangre de Cristo Range . . . . . . .

Average precipitation Wolf Creek 4W . . .

Average runoff San Juan River at Pagosa Springs . . . . . .

Double mass diagram of April 1st water content in percent of
1955-74 average values, Wolf Creek Summit Snow Course. .

Double mass diagram of April 1st water content in percent of
1955-74 average values, Summitville Snow Course. . . .. ..

Double mass diagram of April 1st water content in percent of
1955-74 average values, Cochetopa Pass Snow Course . . . .

Three different modes of transport and dispersion of nuclei
in the San Juan Project . . . . . . . . . . . . . . .

Time cross section of low level wind and stability conditions
for experimental day 118 . . . . . . . . . . . . . . . . . .

Generators operated and ice nuclei count data,experimental

day 118 . . . . . . . . . . . . . . . . . . . . . . . .

Time cross section of low level wind and stability conditions
for experimental days 143 and 144 . . . . . . . . . . . . . .

Generators operated and ice nuclei count data, experimental

day 143 . . . . . . . . . . . . . . . . . .

Flow pattern with southeast blocking flow . .
Average nuclei count at Pagosa Pines, 1974-75
Average nuclei count at PagosaPines, 1971-75

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