Results
| Country: | Brasil
| | Station: | Pedra do O | | River: | Iriri | | Area: | 123827 km2 | | Lat: | -4.57 | | Lon: | -54.05 | | Source: | ANEEL | | PointID: | 43 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1976 | | Ending Year: | 1994 | | Total Years: | 19 | | Total Usable Years: | 16 | |
| |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
|---|
| 1976 | 352 | 715 | 1422 | 2435 | 1893 | 1023 | 366 | 71 | 166 | 263 | 676 | 1725 | 925.58 |
| 1977 | 3457 | 5294 | 5908 | 6703 | 6571 | 3781 | 1593 | 576 | 285 | 511 | 962 | 1531 | 3097.67 |
| 1978 | 5220 | 5310 | 9482 | 8351 | 5870 | 3235 | 1297 | 607 | 301 | 406 | 553 | 1433 | 3505.42 |
| 1979 | 2800 | 6362 | 8981 | 5919 | 3601 | 1609 | 576 | 245 | 247 | 229 | 608 | 1071 | 2687.33 |
| 1980 | 2916 | 4839 | 10241 | 7052 | 3015 | 1095 | 459 | 190 | 133 | 195 | 451 | 1236 | 2651.83 |
| 1981 | 3173 | 4230 | 3687 | 5597 | 2887 | 1086 | 415 | 182 | 150 | 137 | 369 | 1288 | 1933.42 |
| 1982 | 2882 | 7977 | 9583 | 7317 | 6314 | 2218 | 908 | 370 | 224 | 407 | 398 | 629 | 3268.92 |
| 1983 | 1823 | 4520 | 5039 | 5223 | 1944 | 909 | 373 | 191 | 125 | 144 | 342 | 857 | 1790.83 |
| 1984 | 1752 | 2841 | 4434 | 6989 | 6896 | 2468 | 902 | 332 | 286 | 252 | 655 | 882 | 2390.75 |
| 1985 | 3342 | 7226 | 8283 | 6861 | 7963 | 2854 | 1169 | 469 | 230 | 284 | 699 | 2424 | 3483.67 |
| 1986 | 5776 | 6255 | 7302 | 6603 | 4771 | 2097 | 966 | 420 | 275 | 663 | 1086 | 974 | 3099 |
| 1987 | 1824 | 2284 | 4536 | 5171 | 2878 | 1267 | 525 | 225 | 140 | 193 | 229 | 319 | 1632.58 |
| 1988 | 1732 | 2997 | 6075 | 6361 | 5204 | 2104 | 827 | 291 | 142 | 258 | 610 | 2360 | 2413.42 |
| 1989 | 3427 | 5171 | 6521 | -9999 | -9999 | -9999 | 1366 | 575 | 342 | 329 | 1053 | 2407 | -9999 |
| 1990 | 5767 | 4476 | 7942 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 264 | 342 | 781 | -9999 |
| 1991 | 2532 | 5855 | 5866 | 7229 | 5577 | 2928 | 1038 | 315 | -9999 | -9999 | 451 | 569 | -9999 |
| 1992 | 1691 | 4300 | 5315 | 6130 | 3409 | 1190 | 471 | 199 | 129 | 162 | 232 | 1410 | 2053.17 |
| 1993 | 2945 | 3515 | 6570 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1994 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 290 | 683 | -9999 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Avg | 2967.28 | 4675.94 | 6510.39 | 6262.73 | 4586.2 | 1990.93 | 828.19 | 328.63 | 211.67 | 293.56 | 555.89 | 1254.39 | 2495.26 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Std Dev | 1409.33 |
1740.54 |
2245.36 |
1309.89 |
1854.24 |
883.88 |
378.81 |
156.39 |
72.12 |
137.75 |
258.12 |
622.26 |
737.65 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
Click here for this table in tab-delimited format.
Tab-delimited format will open in most table browsing software, i.e. Excel, etc.
View this station on the map.
Return to start.
