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- T- e CHAPTER 3 OPE:RATIONAL PLAN The Pilot Project's operational target area contains 1300 square miles and consists of sub-areas 1 and 2 (see Figure 2-1). The cloud nuclei generating sites, which are also indicated in Figure 2-1 are typically 10 to 30 miles southwest of the target area. e 3. 1 SEEDING RANDOMIZATION SCHEME The random "seed/no seed" decisions for the pilot project are listed in a special file of the computer sharing services computer. Through use of the time share computer terminal, a decision may be obtained by calling for program DURAN. A statement of forecast conditions for the target area and the expected modification potential of the cloud systems is filed in the computer. Then, following a RUN command, the computer will print the decision's number, the YES SEED or DON'T SEED response along with the date and time the pro- gram is executed. Followin€~ the access of a decision, the next decision is immediately made available for access by the computer and will remain available until eventually accessed. Should a random d,ecision be requ ired and should the program DURAN fail to respond during" the hours between 7 :30 a. m. and 4 p. m. , Monday through Friday, a decision may be obtained by telephone from the Division of Atmospheric 'Water Resources Management. If, outside of the above hours, the program DURAN fails to run, an emergency will be declared and the random decision will be obtained by flipping a coin - heads, YES SEED, and tails, DON'T SEED. Then, a verbal report (by telephone) will be made to the Division of Atmospheric Water Resources Management at th4~ earliest possible time during the above listed working hours, and within 48 hours, a detailed letter report of the circumstances will be submitted to the Contracting Officer. e An emergency decision will be so shown on the records. The next regular random decision from the program DURAN will be used for the next experimental day. 3-1