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<br />1
<br />
<br />1 percent. Likewise, a flow having a recurrence interval of any other
<br />
<br />value, y, has a percent chance of occurring in any one year of 100/y.
<br />
<br />7. The annual flows and chance of occurrence listed in table 11 were
<br />
<br />plotted to define
<br />
<br />curves, shown on figure 6 (p. 43). These curves
<br />
<br />show the chance of occurrence in any one yea:r of annual flaws having
<br />
<br />chances of from 1 to 98 percent.
<br />
<br />Table 9.- Probability of recurrence of annual flaws, 1900-64.
<br />
<br /> Annual Recurrence Annual Recurrence
<br /> discharge, Rank interval Year discharge, Rank interval
<br />Year U.S. share T=(n+l)/m U.S. share T=(n+l)/m
<br /> .tLOOO aC-ft) (m) (years) (1000 ac-ft) (m) (years)
<br />1 2 3 4 1 2 3 4
<br />1900 2,827 58 1.14 1933 1,727 42 1.57
<br />01 1,266 23 2.87 34 933 7 9.43
<br />02 1,106 12 5.50 35 3,389 63 1.05
<br />03 1,758 44 1. 50 36 2,137 50 1. 32
<br />04 2,248 53 1. 25 37 1,108 13 5.08
<br />05 2,555 55 1. 20 38 2,095 49 1. 33
<br />06 2,822 57 1.16 39 1,201 20 3.30
<br />07 1,593 36 1.83 40 1,458 30 2.20
<br />08 1,707 41 1. 61 41 3,142 60 1.10
<br />09 1,588 35 1.89 42 2,224 51 1. 29
<br />10 1,238 22 3.00 43 1,210 21 3.14
<br />11 1,148 15 4.40 44 1,499 33 2.00
<br />12 1,087 11 6.00 45 1,183 18 3.67
<br />13 1,632 38 1. 74 46 1,451 29 2.28
<br />14 3,150 61 1.08 47 1,139 14 4.71
<br />15 1,660 40 1. 65 48 1,776 45 1. 47
<br />16 1,354 26 2.54 49 2,225 52 1. 27
<br />17 1,362 27 2.44 50 1,087 10 6.60
<br />18 1,173 17 3.88 51 838 6 11.00
<br />19 3,675 64 1.03 52 444 1 66.00
<br />20 2,901 59 1.12 53 596 3 22.00
<br />21 1,051 9 7.33 54 3,326 62 1.06
<br />22 2,380 54 1. 22 55 1,310 24 2.75
<br />23 1,833 46 1.43 56 478 2 33.00
<br /> ,
<br />24 1,530 34 1. 94 57 2,000 47 1. 40
<br />25 2,558 56 1.18 58 2,030 48 1. 38
<br />26 1,613 37 1. 78 59 1,460 31 2.13
<br />27 1,166 16 4.12 60 1,200 19 3.47
<br />28 1,441 28 2.36 61 1,330 25 2.64
<br />29 1,010 8 8.25 62 825 5 13.20
<br />30 1,660 39 1. 69 63 680 4 16.50
<br />31 1,498 32 2.06 64 1,750 43 1. 53
<br />32 4,025 65 1.02 Ave. 1,706
<br /> - -
<br />
<br />-\ r r. , ...,
<br />\) '",I ~ .... ,~ ;j
<br />
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