Results
| Country: | Brasil
| | Station: | Tabajara | | River: | Ji-parana | | Area: | 60212 km2 | | Lat: | -8.92 | | Lon: | -62.1 | | Source: | ANEEL | | PointID: | 29 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1978 | | Ending Year: | 1996 | | Total Years: | 19 | | Total Usable Years: | 17 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1978 | 2945 | 2568 | 3947 | 2840 | 1916 | 1312 | 730 | 426 | 340 | 407 | 579 | 2145 | 1679.58 |
| 1979 | 2971 | 3584 | 3968 | 2971 | 1582 | 945 | 553 | 372 | 351 | 306 | 500 | 635 | 1561.5 |
| 1980 | 1149 | 2020 | 3226 | 2532 | 1454 | 704 | 444 | 267 | 191 | 315 | 395 | 957 | 1137.83 |
| 1981 | 1833 | 1954 | 2769 | 2360 | 1089 | 681 | 349 | 220 | 179 | 227 | 646 | 1299 | 1133.83 |
| 1982 | 2619 | 3263 | 3466 | 2552 | 1597 | 872 | 535 | 350 | 346 | 482 | 439 | 707 | 1435.67 |
| 1983 | 1438 | 2243 | 3323 | 2477 | 1180 | 736 | 415 | 252 | 187 | 200 | 503 | 927 | 1156.75 |
| 1984 | 1432 | 2029 | 2396 | 2596 | 1668 | 902 | 487 | 283 | 266 | 280 | 652 | 1203 | 1182.83 |
| 1985 | 1818 | 2264 | 2712 | 2704 | 2464 | 935 | 507 | 320 | 287 | 568 | 758 | 1356 | 1391.08 |
| 1986 | 2659 | 3548 | 3780 | 3116 | 1775 | 1158 | 643 | 444 | 418 | 486 | 535 | 947 | 1625.75 |
| 1987 | 1451 | 1885 | 2814 | 2211 | 1354 | 783 | 462 | 269 | 221 | 254 | 565 | 999 | 1105.67 |
| 1988 | 1797 | 2931 | 3729 | 3143 | 1735 | 966 | 548 | 327 | 245 | 294 | 573 | 1099 | 1448.92 |
| 1989 | 2335 | 3979 | -9999 | -9999 | -9999 | -9999 | -9999 | 454 | 364 | 365 | 561 | 960 | -9999 |
| 1990 | 2171 | 3610 | 3429 | 2107 | 1275 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1991 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 638 | 801 | -9999 |
| 1992 | 1603 | 2154 | 3477 | 2254 | 1302 | 876 | 651 | 537 | 516 | 374 | 709 | 1506 | 1329.92 |
| 1993 | 2634 | -9999 | -9999 | 2827 | 1546 | 902 | 669 | 504 | 541 | 540 | 625 | 1726 | -9999 |
| 1994 | 3193 | 3800 | 3327 | 2812 | 1530 | 952 | 662 | 402 | 333 | 404 | 551 | 1089 | 1587.92 |
| 1995 | 2085 | 3069 | 2914 | 2597 | 1794 | 912 | 554 | 327 | 279 | 348 | 697 | 1914 | 1457.5 |
| 1996 | 2597 | 2797 | 3805 | 2801 | 1560 | 854 | 527 | 373 | 324 | 424 | 881 | 1143 | 1507.17 |
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| Avg | 2151.67 | 2805.76 | 3317.63 | 2641.18 | 1577.71 | 905.63 | 546 | 360.41 | 316.94 | 369.06 | 600.39 | 1189.61 | 1382.79 |
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| Std Dev | 600.62 |
700.76 |
463.8 |
293.96 |
311.78 |
153.44 |
100.59 |
88.25 |
101.8 |
104 |
113.04 |
397.78 |
190.1 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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