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Location of river basins for study: |
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The
Red River basin is along the boundary between North Dakota and Minnesota,
within the |
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Northern Great Plains,
and within the headwaters area to Hudson Bay. The St.
Louis River is |
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near Duluth, Minnesota, within the Upper Midwest and within the headwaters
to Lake Superior. |
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The
St. Croix River is along the boundary between Minnesota and Wisconsin,
northwest of Eau |
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Claire, Wisconsin,
within the Upper Midwest, and within the headwaters to the Mississippi
River. |
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Table 1. |
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Data are Julian Days for the |
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Excel Data Sheet for Figure 1 |
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Beginning Day of annual snowmelt |
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Terminology: |
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Year |
Fargo |
Scanlon |
St Cr fls |
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1902 |
msg |
msg |
79 |
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Mean daily flow is the amount of water |
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1903 |
msg |
msg |
78 |
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that passes a river station during |
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1904 |
msg |
msg |
93 |
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a
24 hour period. |
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1905 |
msg |
msg |
89 |
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1906 |
msg |
msg |
msg |
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Annual snowmelt runoff is defined as total |
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1907 |
msg |
msg |
msg |
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annual spring or early winter runoff from |
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1908 |
msg |
106 |
msg |
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both snowmelt and rainfall. |
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1909 |
msg |
125 |
msg |
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Data used in 10 yr avgs begins in 1910 |
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1910 |
65 |
83 |
72 |
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Additional explanation given at end. |
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1911 |
86 |
90 |
112 |
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1912 |
92 |
97 |
93 |
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1913 |
92 |
103 |
93 |
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1914 |
81 |
112 |
96 |
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1915 |
91 |
128 |
98 |
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Data for J.D. plot: |
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1916 |
86 |
102 |
92 |
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10 yr mov avgs |
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1917 |
79 |
99 |
90 |
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Plotted at 10th yr |
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1918 |
81 |
130 |
84 |
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Yr |
Far |
Scn |
Scf |
Example of mov avg for
Fargo: |
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1919 |
81 |
85 |
81 |
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1919 |
83 |
103 |
91.1 |
83 is avg of 65, 86, … 81 |
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1920 |
76 |
83 |
84 |
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1920 |
85 |
103 |
92.3 |
85
is avg 86, 92, … 76, plot at 1920 |
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1921 |
78 |
86 |
91 |
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1921 |
84 |
103 |
90.2 |
84
is avg 92, 92, … 78, plot at 1921 |
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1922 |
76 |
97 |
80 |
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1922 |
82 |
103 |
88.9 |
…
… |
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1923 |
99 |
106 |
105 |
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1923 |
83 |
103 |
90.1 |
( Leap yrs, 1904..2000 ) |
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1924 |
100 |
132 |
120 |
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1924 |
85 |
105 |
92.5 |
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1925 |
93 |
87 |
86 |
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1925 |
85 |
101 |
91.3 |
River Basin Characteristics |
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1926 |
80 |
83 |
89 |
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1926 |
84 |
99 |
91 |
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1927 |
71 |
75 |
72 |
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1927 |
84 |
96 |
89.2 |
Red River at Fargo ND |
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1928 |
82 |
85 |
84 |
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1928 |
84 |
92 |
89.2 |
Headwaters of Hudson Bay. |
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1929 |
73 |
77 |
75 |
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1929 |
83 |
91 |
88.6 |
Flow record: 1902-2003. |
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1930 |
56 |
129 |
125 |
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1930 |
81 |
96 |
92.7 |
Drainage area: 6800 square miles |
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1931 |
85 |
83 |
85 |
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1931 |
82 |
95 |
92.1 |
Average annual flow: 680 cfs |
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1932 |
100 |
98 |
99 |
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1932 |
84 |
96 |
94 |
St. Louis River
at Scanlon MN |
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1933 |
94 |
107 |
94 |
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1933 |
83 |
96 |
92.9 |
Headwaters of Great Lakes. |
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1934 |
100 |
96 |
98 |
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1934 |
83 |
92 |
90.7 |
Flow record: 1908-2003. |
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1935 |
76 |
84 |
80 |
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1935 |
82 |
92 |
90.1 |
Drainage area: 3430 square miles |
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1936 |
83 |
102 |
85 |
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1936 |
82 |
94 |
89.7 |
Average annual flow: 2410 cfs |
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1937 |
100 |
