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JAN 1991 |
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| RIVER VELOCITIES AT TARBERT LANDING,
MS. |
| (MILE 306.3
AHP**) |
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| Related to
the Red River
Landing Gage (MILE
302.4 AHP**) |
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| Based on
observations from 1973-1989 at the Tarbert Landing discharge range. |
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| GAGE |
V E L O C I T Y |
| HEIGHT |
M E A N |
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M A X I M U M |
| IN FEET |
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| NGVD* |
AT 60% DEPTH |
AT SURFACE |
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AT 60% DEPTH |
AT SURFACE |
| (76 ADJ) |
FT/SEC |
MI/HR |
FT/SEC |
MI/HR |
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FT/SEC |
MI/HR |
FT/SEC |
MI/HR |
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| 5 |
2.3 |
1.6 |
2.6 |
1.8 |
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2.8 |
1.9 |
3.1 |
2.1 |
| 10 |
2.6 |
1.8 |
2.9 |
2.0 |
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3.0 |
2.0 |
3.4 |
2.3 |
| 15 |
2.8 |
1.9 |
3.2 |
2.2 |
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3.2 |
2.2 |
3.7 |
2.5 |
| 20 |
3.2 |
2.2 |
3.6 |
2.5 |
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3.6 |
2.5 |
4.1 |
2.8 |
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| 25 |
3.4 |
2.3 |
3.9 |
2.7 |
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4.0 |
2.7 |
4.5 |
3.1 |
| 30 |
3.8 |
2.6 |
4.2 |
2.9 |
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4.5 |
3.1 |
5.1 |
3.5 |
| 35 |
4.0 |
2.7 |
4.5 |
3.1 |
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5.2 |
3.5 |
5.9 |
4.0 |
| 40 |
4.4 |
3.0 |
5.0 |
3.4 |
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6.0 |
4.1 |
6.8 |
4.6 |
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| 45 |
4.8 |
3.3 |
5.4 |
3.7 |
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6.9 |
4.7 |
7.8 |
5.3 |
| 50 |
5.3 |
3.6 |
6.0 |
4.1 |
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8.0 |
5.5 |
9.0 |
6.1 |
| 55 |
5.9 |
4.0 |
6.7 |
4.6 |
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9.2 |
6.3 |
10.3 |
7.0 |
| 60 |
6.8 |
4.6 |
7.6 |
5.2 |
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10.5 |
7.2 |
11.9 |
8.1 |
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| * - NATIONAL GEODETIC VERTICAL DATUM (1976
ADJUSTMENT) |
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| ** - ABOVE HEAD
OF PASSES |
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| MILES PER HOUR = 0.682 X FT/SEC |
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| KNOTS PER HOUR
= 0.592 X FT/SEC |
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| MILES PER HOUR
= 1.152 X KNOTS |
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| KNOTS PER HOUR
= 0.868 X MI/HR |
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