Country= Brasil Station= Altamira River= Xingu Area= 446203 km2 Lat= -3.2 Lon= -52.22 Source= ANEEL PointID= 44 Area Units= km2 Discharge Units= m3/sec Starting Year= 1971 Ending Year= 1997 Total Years= 27 Total Usable Years= 26 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1971 3440 5459 6534 6625 11710 6435 2851 1401 885 844 2818 4408 4450.83 1972 5880 12381 17168 17582 15107 6199 2858 1373 959 808 1170 1925 6950.83 1973 4621 7342 14884 20465 17972 7833 3911 2349 1220 1515 3024 5977 7592.75 1974 7877 15769 22603 29234 27424 13956 4738 2191 1549 1440 1511 4329 11051.8 1975 7767 15925 20091 21717 18760 8912 4091 1988 1125 871 1232 3001 8790 1976 6800 11356 16031 15566 11658 5876 2632 1275 913 1108 2364 5427 6750.5 1977 9596 16180 19214 18011 20175 10472 4793 2101 1250 1596 3507 5148 9336.92 1978 16278 16746 27014 23844 18144 9823 4459 2508 1531 1566 2084 4190 10682.2 1979 9054 19048 25793 18737 11667 5430 2567 1544 1486 1556 2113 3565 8546.67 1980 8627 16136 32298 22518 10959 4665 2411 1504 1146 1193 1674 4385 8959.67 1981 10759 16121 13004 17540 10105 4331 2235 1489 1175 1047 1864 5660 7110.83 1982 10541 24407 30091 22640 18159 7572 3593 1959 1399 1970 2111 2892 10611.2 1983 6643 15677 17256 17549 7928 3944 2163 1443 1142 1268 2490 4207 6809.17 1984 7244 9953 14045 20193 19890 7902 3281 1682 1382 1465 2727 3601 7780.42 1985 10132 23584 26133 23901 24365 9947 4326 2264 1418 1435 2845 7110 11455 1986 16972 19474 23591 21583 15320 7041 3517 1960 1524 2283 4303 4571 10178.2 1987 7449 9026 17791 18530 11020 4886 2406 1443 1110 1241 1541 3172 6634.58 1988 7570 10852 20034 21675 17336 7714 3492 1750 1188 1236 2277 7480 8550.33 1989 13875 14654 20933 22870 13808 9140 4741 2427 1635 1502 3194 10229 9917.33 1990 18631 14065 23247 18851 11230 5623 2933 1991 1325 1443 1996 3038 8697.75 1991 7967 16569 17658 24281 18760 9531 3933 1977 1260 1306 1996 3775 9084.42 1992 7150 14595 18215 19887 12154 5191 2499 1545 1267 1599 2194 5687 7665.25 1993 9628 11578 20291 16719 11430 5247 2519 1509 1390 1434 1929 3187 7238.42 1994 11571 18835 24593 23544 16013 7593 4695 2241 1556 1446 1616 3823 9793.83 1995 12528 18342 21175 21930 22386 -9999 -9999 -9999 -9999 1274 1610 4602 -9999 1996 10878 12795 16866 18768 17355 7071 3124 1733 1224 1202 2090 3827 8077.75 1997 7730 15708 16632 23842 17407 6495 3054 1705 1249 1256 1359 2077 8209.5 Avg 9526.22 14910.3 20118 20318.6 15860.8 7262.65 3377.77 1821.23 1281.08 1366.81 2208.85 4492.33 8497.16 Std Dev 3561.26 4311.94 5392.95 3989.51 4626.54 2255.04 854.91 355.88 197.05 309.54 716.96 1732.63 1597.59