Results
| Country: | Madagascar
| | Station: | Ambilobe | | River: | MahavavyNord | | Area: | 3210 km2 | | Lat: | -13.15 | | Lon: | 49.07 | | Source: | RivDIS | | PointID: | 1501 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1963 | | Ending Year: | 1986 | | Total Years: | 24 | | Total Usable Years: | 19 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1963 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 37.2 | 71 | -9999 |
| 1964 | 117 | 241 | 226 | 112 | 79.2 | 46.8 | 35.6 | 27.1 | 22.8 | 21.3 | 47 | 67.1 | 86.91 |
| 1965 | 117 | 320 | 350 | 131 | 60.9 | -9999 | -9999 | -9999 | -9999 | 26.9 | 29.7 | 218 | -9999 |
| 1966 | 277 | 326 | 165 | 87.6 | 49.7 | 36.5 | 25.1 | 23.8 | 21.7 | 18.5 | 34.8 | 91.5 | 96.43 |
| 1967 | 175 | 165 | 203 | 158 | -9999 | -9999 | -9999 | -9999 | -9999 | 25.7 | -9999 | -9999 | -9999 |
| 1968 | 442 | 382 | 375 | 125 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 17.3 | 149 | -9999 |
| 1969 | 143 | 288 | 111 | 92.6 | 51.2 | 41.6 | 30.5 | 29.7 | 24.4 | 24.1 | 34.7 | 87.8 | 79.88 |
| 1970 | 145 | 226 | 203 | 130 | 60.4 | 40.1 | 32.9 | 30.3 | 24.3 | 22.2 | 39.5 | 130 | 90.31 |
| 1971 | 782 | 521 | 191 | 36.6 | 6.39 | 2.32 | 1.28 | 1 | 2.29 | 1.03 | 48.3 | 196 | 149.1 |
| 1972 | 346 | 573 | 649 | 310 | 167 | 92 | 74.7 | 66.3 | 50 | 28 | 132 | 231 | 226.58 |
| 1973 | 583 | 1111 | 639 | 191 | 49.7 | 24.2 | 11.3 | 6.14 | 2.65 | 1.79 | 3.18 | 132 | 229.58 |
| 1974 | 129 | 218 | 255 | 104 | 78.9 | 32.6 | 20 | 12.4 | 7.98 | 4.7 | 14.2 | 98.6 | 81.28 |
| 1975 | 236 | 273 | 411 | 193 | 125 | 112 | 45.4 | 28.8 | 11.5 | 9.29 | -9999 | -9999 | -9999 |
| 1976 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 121 | 225 | -9999 |
| 1977 | 403 | 788 | 530 | 491 | 206 | 80.7 | 55.3 | 41 | 24.4 | 13.3 | 34 | 117 | 231.98 |
| 1978 | 443 | 381 | 396 | 139 | 105 | 62.6 | 59 | 51 | 49.5 | 71.7 | 87.8 | 167 | 167.72 |
| 1979 | 267 | 665 | 834 | 0 | 168 | 0 | 79.4 | 58.2 | 34.8 | 32.1 | 34.5 | 218 | 199.25 |
| 1980 | 618 | 602 | 458 | 365 | 217 | 136 | 80.3 | 44.8 | 29.4 | 45.6 | 9.52 | 39.1 | 220.39 |
| 1981 | 34.7 | 118 | 62.7 | 47.6 | 22.4 | 8.89 | 2.12 | 2.24 | 0.53 | 8.41 | 7.46 | 48.2 | 30.27 |
| 1982 | 103 | 211 | 276 | 197 | 71.2 | 38.3 | 22 | 14.9 | 10.5 | 7.4 | 55.1 | 190 | 99.7 |
| 1983 | 261 | 385 | 351 | 109 | 46.3 | 35.5 | 27.1 | 18.7 | 10.4 | 8.4 | 85.5 | 416 | 146.16 |
| 1984 | 1250 | 1199 | 503 | 378 | 325 | 126 | 73.6 | 37.3 | 28.2 | 32.9 | -9999 | -9999 | -9999 |
| 1985 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 1.7 | 82.4 | -9999 |
| 1986 | 551 | 390 | 242 | 83.8 | 42.6 | 13.6 | 6.8 | 3.36 | 3.31 | 9.12 | -9999 | -9999 | -9999 |
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| Avg | 353.46 | 446.81 | 353.84 | 165.77 | 101.68 | 51.65 | 37.91 | 27.61 | 19.93 | 20.62 | 43.72 | 148.73 | 142.37 |
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| Std Dev | 280.25 |
284.92 |
190.83 |
120.48 |
78.96 |
40.34 |
26.02 |
18.93 |
14.69 |
16.48 |
35.83 |
86.1 |
64.64 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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