Maintainer: Webmaster
Last update: Tuesday, 24-Aug-2004 12:38:23 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05087500.html
----------------------------------------------------------------------------------------------------------
Statistics of monthly and annual mean discharges
[m, more than 1 year of occurrence]
__________________________________________________________________________________________________________
Maximum Minimum Mean
______________________ ______________________ _____________________________________________
Water year Water year Standard Coeffi- Percentage
Month Discharge of Discharge of Discharge deviation cient of of annual
(ft3/s) occurrence (ft3/s) occurrence (ft3/s) (ft3/s) variation discharge
__________________________________________________________________________________________________________
October 94.1 1983 0 m 9.84 20.1 2.04 1.91
November 108 1995 0 m 7.51 16.9 2.25 1.46
December 22.2 1995 0 m 2.85 4.19 1.47 0.55
January 8.77 1995 0 m 1.25 1.67 1.33 0.24
February 3.72 1995 0 m 0.86 1.01 1.17 0.17
March 335 1995 0 m 30.8 62.0 2.02 5.97
April 966 1997 0.197 1991 222 217 0.98 43.1
May 896 1996 2.12 1981 89.7 143 1.60 17.4
June 660 1970 0.366 1973 66.5 126 1.89 12.9
July 688 1975 0 1961 57.8 116 2.00 11.2
August 264 1993 0 1961 10.7 38.3 3.58 2.07
September 272 1993 0 m 15.6 48.8 3.13 3.02
Annual 127 1996 1.60 1977 43.0 33.7 0.79 100
-----------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------
Monthly and annual flow duration, in cubic feet per second
______________________________________________________________________________________________________________________
Percentage
of days
discharge Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. Annual
equaled or
exceeded
______________________________________________________________________________________________________________________
95 0 0 0 0.27 1.10 0.19 0 0 0 0 0 0 0
90 0 0 0 2.00 3.32 1.20 0.15 0 0 0 0 0 0
85 0 0 0 6.04 4.50 2.67 0.48 0 0 0 0.04 0.02 0
80 0 0 0 12.1 7.08 3.77 1.00 0.02 0 0 0.18 0.10 0.07
75 0 0 0.03 18.1 12.8 5.15 1.50 0.10 0 0.03 0.24 0.10 0.16
70 0.10 0.02 0.23 27.5 16.5 6.66 3.12 0.14 0 0.09 0.33 0.27 0.35
65 0.20 0.10 0.46 39.2 20.5 8.39 3.77 0.19 0.04 0.16 0.46 0.46 0.52
60 0.37 0.12 0.66 51.9 24.6 11.1 5.05 0.37 0.12 0.22 0.63 0.59 0.77
55 0.56 0.31 0.66 66.3 29.0 13.5 6.40 0.51 0.16 0.29 1.20 0.76 1.10
50 0.56 0.45 0.93 82.1 33.8 16.1 8.61 0.99 0.23 0.40 1.60 0.98 1.70
45 0.70 0.55 1.30 103 38.5 19.0 11.7 1.40 0.33 0.54 2.30 1.60 3.09
40 0.86 0.80 1.90 128 45.3 22.0 15.3 1.90 0.66 1.00 3.64 1.60 4.12
35 1.10 0.97 1.90 159 53.1 26.8 20.6 2.91 0.94 1.90 4.61 2.70 6.28
30 1.30 1.20 3.08 208 63.8 32.4 28.6 3.92 1.30 3.97 5.16 2.70 9.94
25 1.60 1.40 3.88 264 83.1 41.7 39.4 5.56 3.00 9.06 6.99 4.00 16.3
20 2.00 1.40 7.86 327 110 55.6 52.4 7.91 5.64 12.1 8.95 4.61 25.9
15 2.50 1.70 21.2 442 147 80.5 73.9 12.3 10.3 15.6 13.3 5.15 44.5
10 3.10 2.10 73.2 610 201 143 122 18.4 20.5 26.9 18.4 6.28 84.2
5 3.80 3.00 183 890 340 342 254 36.2 52.2 55.0 26.1 9.58 213
-------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
Probability of annual high discharges
[ng, statistic not given]
__________________________________________________________________________________________________
Maximum average discharge
(ft3/s)
___________________________________________________________
Recurrence Maximum
Exceedance interval instantaneous 3-day period 7-day period 15-day period 30-day period
probability (years) (ft3/s)
__________________________________________________________________________________________________
0.99 1.01 ng 17.8 16.3 12.5 9.15
0.95 1.05 108 66.4 57.6 41.9 28.7
0.90 1.11 180 123 104 74.2 49.5
0.80 1.25 318 242 200 139 90.3
0.50 2 839 707 563 379 241
0.20 5 1,910 1,590 1,230 820 522
0.10 10 2,760 2,210 1,700 1,130 725
0.04 25 3,950 2,950 2,250 1,500 976
0.02 50 4,870 3,440 2,610 1,750 1,150
0.01 100 5,790 3,880 2,940 1,970 1,310
0.005 200 6,720 4,270 3,220 2,170 1,460
0.002 500 7,940 ng ng ng ng
-------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
Annual peak discharge and corresponding gage height, period of record
[--, no data]
_____________________________________________________________________________________
Gage Peak Gage Peak
Water Date height discharge Water Date height discharge
year (feet) (ft3/s) year (feet) (ft3/s)
_____________________________________________________________________________________
Annual peak discharge, by year, and corresponding gage height
1945 March 30 10.80 939 1974 April 23 14.65 2,070
1950 April 15.25 2,790 1975 July 3 16.59 4,260
1951 April 9 11.75 1,220 1976 April 3 10.21 631
1952 April 11 9.89 612 1977 May 28 2.50 24.0
1953 March 31 6.65 112 1978 April 10 14.45 1,320
1954 June 18 -- 128 1979 April 20 15.29 2,140
1955 June 9 9.87 527 1980 April 9 6.91 357
1956 July 11 13.18 1,390 1981 July 3 3.97 107
1957 September 7 10.73 734 1982 April 18 9.96 711
1958 July 9 11.38 846 1983 March 9 14.17 1,020
1959 April 5 11.23 570 1984 June 12 9.10 513
1960 April 10 12.60 903 1985 June 29 12.58 939
1961 March 27 6.77 135 1986 March 31 13.43 1,040
1962 June 12 14.12 1,620 1987 March 28 11.78 550
1963 April 11 11.28 825 1988 June 1 7.21 357
1964 June 22 12.40 900 1989 April 18 15.25 1,550
1965 April 12 15.29 2,590 1990 April 4 4.86 60.0
1966 April 3 16.00 1,820 1991 July 8 -- 87.0
1967 April 23 13.41 1,320 1992 March 9 9.87 350
1968 July 20 12.87 1,120 1993 September 3 14.18 1,180
1969 April 11 15.92 2,530 1994 September 19 11.30 707
1970 May 31 14.82 2,200 1995 March 16 14.22 1,300
1971 April 9 11.74 773 1996 May 19 18.27 5,020
1972 April 17 10.12 729 1997 April 19 17.96 4,330
1973 March 15 5.10 93.0
Annual peak discharge, from highest to lowest, and corresponding gage height
1996 May 19 18.27 5,020 1968 July 20 12.87 1,120
1997 April 19 17.96 4,330 1986 March 31 13.43 1,040
1975 July 3 16.59 4,260 1983 March 9 14.17 1,020
1950 April 15.25 2,790 1945 March 30 10.80 939
1965 April 12 15.29 2,590 1985 June 29 12.58 939
1969 April 11 15.92 2,530 1960 April 10 12.60 903
1970 May 31 14.82 2,200 1964 June 22 12.40 900
1979 April 20 15.29 2,140 1958 July 9 11.38 846
1974 April 23 14.65 2,070 1963 April 11 11.28 825
1966 April 3 16.00 1,820 1971 April 9 11.74 773
1962 June 12 14.12 1,620 1957 September 7 10.73 734
1989 April 18 15.25 1,550 1972 April 17 10.12 729
1956 July 11 13.18 1,390 1982 April 18 9.96 711
1967 April 23 13.41 1,320 1994 September 19 11.30 707
1978 April 10 14.45 1,320 1976 April 3 10.21 631
1995 March 16 14.22 1,300 1952 April 11 9.89 612
1951 April 9 11.75 1,220 1959 April 5 11.23 570
1993 September 3 14.18 1,180 1987 March 28 11.78 550
1955 June 9 9.87 527 1953 March 31 6.65 112
1984 June 12 9.10 513 1981 July 3 3.97 107
1980 April 9 6.91 357 1973 March 15 5.10 93.0
1988 June 1 7.21 357 1991 July 8 -- 87.0
1992 March 9 9.87 350 1990 April 4 4.86 60.0
1961 March 27 6.77 135 1977 May 28 2.50 24.0
1954 June 18 -- 128
---------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------
Monthly and annual mean discharges, in cubic feet per second
[Data were not rounded in accordance with U.S. Geological Survey publication standards; --, no data]
__________________________________________________________________________________________________________________________________
Year Oct. Nov. Dec. Jan. Feb. March April May June July Aug. Sept. Annual
__________________________________________________________________________________________________________________________________
1945 -- -- -- -- -- -- 289.0 73.7 26.5 15.0 4.81 19.5 --
1951 11.0 7.79 5.11 3.21 2.75 4.16 336.9 72.0 7.18 1.53 3.03 27.5 39.9
1952 11.9 4.93 3.61 1.03 1.93 3.42 177.5 19.6 3.50 6.03 0.394 0 19.3
1953 0.035 0.503 0.052 0 0 15.7 33.2 22.0 16.9 3.45 0.245 0 7.68
1954 0 0 0 0 0 0 51.8 39.8 50.7 6.26 0.190 0 12.4
1955 0.052 0.143 0.094 0.026 0 0 70.7 23.9 137.4 8.82 0.371 0 19.9
1956 0.439 0.007 0.129 0.045 0 0 132.3 131.8 26.9 312.6 11.8 7.32 52.3
1957 1.79 33.4 5.50 1.94 1.56 39.8 68.6 42.0 64.7 87.6 3.77 163.4 42.7
1958 40.6 23.5 7.41 2.50 1.70 3.76 12.2 5.32 4.85 186.7 5.28 0.153 24.8
1959 0.271 0.550 0.645 0.200 0 1.61 209.0 29.9 15.7 9.97 4.36 2.43 22.7
1960 12.5 10.4 4.31 2.10 1.11 1.68 307.1 49.9 49.2 10.4 0.887 0.223 37.1
1961 0.316 0.423 0.574 0.326 0.193 23.0 27.3 10.8 0.773 0 0 1.47 5.45
1962 8.23 2.93 0.923 0.377 0.129 0 244.9 298.9 481.9 43.9 7.34 7.60 91.2
1963 2.63 4.19 3.48 0.406 0 18.7 188.6 41.7 30.6 6.88 4.67 0.143 25.0
1964 0.013 0.177 0.032 0 0 0 73.8 44.6 306.1 40.4 28.2 8.43 41.4
1965 27.0 12.9 3.94 2.56 1.17 1.37 577.3 158.8 102.1 92.2 5.02 7.96 82.4
1966 64.5 21.6 8.54 4.05 1.92 93.0 747.1 231.9 32.7 107.2 24.2 4.74 111.7
1967 5.05 1.93 0.913 0.652 0.529 15.6 472.5 236.2 21.0 4.91 0.158 0 63.1
1968 0.535 1.63 0.600 0 0.131 26.0 19.2 4.04 232.7 205.0 28.1 27.9 45.5
1969 23.3 13.0 5.41 0.900 1.65 2.97 552.6 63.2 47.1 11.5 1.18 0.217 59.7
1970 0.174 0.423 0.481 0.358 0.036 0 302.6 330.3 659.8 25.4 2.75 0.873 109.7
1971 2.07 4.52 2.27 1.55 1.44 6.17 162.0 27.8 12.1 3.39 0.261 0.090 18.5
1972 0.703 7.67 2.82 0.361 0.059 20.6 211.8 36.0 17.4 2.22 0.019 0.023 24.7
1973 0.005 0.173 0.003 0 0 34.8 6.42 3.30 0.366 0.001 0.023 0.078 3.82
1974 1.91 2.43 0.046 0.105 0.056 0 426.2 191.7 45.0 3.01 0.493 0.351 55.7
1975 0.349 0.610 0.653 0.795 0.380 1.24 224.5 125.8 46.0 687.7 11.0 1.54 92.7
1976 1.17 4.32 1.70 1.69 1.80 21.1 189.1 16.3 3.29 1.30 0.071 0 19.9
1977 0 0 0 0 0 0.745 10.3 4.38 3.25 0.222 0.319 0.074 1.60
1978 0.079 4.46 4.04 1.24 0.831 13.4 479.2 116.7 48.9 61.3 7.11 1.07 61.2
1979 0.395 1.57 1.24 0.871 0.615 1.42 611.2 126.8 47.7 12.3 1.61 0.667 66.7
1980 0.295 1.63 1.33 1.27 1.04 2.00 112.6 6.72 0.793 0.018 0.138 0.594 10.6
1981 0.302 0.075 0.051 0.014 0.506 5.51 5.38 2.12 8.40 21.3 0.044 0.774 3.74
1982 -- -- -- -- -- 9.36 284.1 102.3 16.2 52.3 11.7 0.495 --
1983 94.1 24.0 15.8 4.65 3.32 217.1 155.7 56.7 61.3 19.7 0.999 0.313 54.8
1984 4.17 6.90 3.99 1.64 1.05 57.7 112.8 22.4 90.7 3.09 0.147 0.012 25.2
1985 0.256 0.479 0.341 0.140 0.142 68.7 83.2 41.9 253.5 74.5 29.5 35.9 49.0
1986 52.5 9.39 3.86 3.71 3.30 124.8 314.3 185.2 34.4 2.79 0.543 0.186 61.4
1987 0.478 0.829 0.600 0.600 0.600 118.2 117.1 19.6 9.06 1.57 0.340 0.023 22.5
1988 0.065 0.490 0.307 0.088 0.060 0.351 57.3 12.0 26.9 0.855 0.008 0.011 8.10
1989 0 0 0.019 0.010 0.014 0.022 231.1 28.4 28.1 2.95 0.086 0.002 24.0
1990 0 0.016 0 0 0 9.62 13.3 2.74 4.69 2.25 0.018 0 2.72
1991 0 0 0 0 0.014 0.084 0.197 4.63 3.65 40.6 3.38 0.353 4.48
1992 0.317 1.54 2.22 0.842 0.440 85.6 102.8 38.3 5.20 12.2 0.505 0.681 20.9
1993 1.23 0.465 1.25 0.754 0.691 9.01 120.4 16.1 51.6 97.9 264.5 272.4 69.8
1994 14.4 10.7 5.89 2.67 1.12 47.9 53.3 30.7 10.9 145.6 24.4 138.5 40.7
1995 54.8 107.7 22.2 8.77 3.72 335.0 136.8 108.4 12.1 93.8 11.5 10.1 76.1
1996 9.42 5.10 3.88 2.46 1.41 1.48 574.8 895.8 14.4 10.7 3.43 1.15 127.4
1997 3.35 9.76 4.62 2.75 2.34 2.48 965.6 151.5 17.4 237.3 4.15 3.03 116.5
-------------------------------------------------------------------------------------------------------------------------
|
U.S. Department of the Interior ||
U.S. Geological Survey Maintainer: Webmaster Last update: Tuesday, 24-Aug-2004 12:38:23 EDT Privacy || Disclaimer|| Accessibility || FOIA URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05087500.html |
|