WMOD00301 ‎(2)‎

• Title: Conceptual Plan to Develop Water Augmentation by Weather Modification in the Colorado River
• Date: 5/14/1979
• Weather Modification - Doc Type: Report

D R AFT

with other estimates indicate an additional potential of 467,000 acre-

feet outside the Basin and about 298,000 acre-feet in the Lower

;t.

Colorado River Basin (fig. 4).

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The NAWC study estimate is based on application of watershed models,
which include evaporation and other losses, and cloud models to
individual storm and rawinsonde data for a 20-year (1952-1971)

period. This more recent estimate appears most consistent with
current physical analyses and evaluations of seeding experiments and
can be considered the best and most conservative runoff augmentation

potential estimate at this time.

The NAWC study estimated the potential by broad mountain ranges which

include the major runoff areas. The principle rivers receiving
additional runoff from these ranges are shown in table 2.

Table 2. - Augmentation by mountain ranges

Reg i on a 1
Mountain range augmentation potential Principle rivers
Wind River 231,000 acre-feet Upper Green, Big Horn
Uinta 118 , 000 acre-feet Green, Weber, Bear,
Duchesne
Park Range 194,000 acre-feet Yampa, North Platte
Central Colorado 741,000 acre-feet Colorado, Gunnison,
White, South Platte,
Arkansas
San Juan 498,000 acre-feet San Juan, Rio Grande,
Dolores
Mogo llon Rim 298,000 acre-feet Little Colorado, Salt
River, Gila
2,080,000 acre-feet

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