Country= Brasil Station= Serrinha River= Negro Area= 279945 km2 Lat= -0.45 Lon= -64.83 Source= ANEEL PointID= 21 Area Units= km2 Discharge Units= m3/sec Starting Year= 1977 Ending Year= 1996 Total Years= 20 Total Usable Years= 20 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1977 8370 11898 11091 8982 16224 20565 22728 19261 16385 17422 14950 10096 14831 1978 8175 8996 7656 17350 21617 23922 24333 19036 16291 16161 11176 13219 15661 1979 8658 4292 8754 16951 22886 25020 22219 17951 15788 13286 12452 11362 14968.2 1980 8109 5317 3807 11095 21138 25883 23695 19236 16417 14851 12673 10910 14427.6 1981 8570 8567 14090 13666 18600 24151 23548 19406 17086 12409 7543 7874 14625.8 1982 11252 9449 10690 16631 24732 28880 22189 21999 15795 10020 9656 10641 15994.5 1983 9897 3599 5025 12838 23915 20716 19180 19058 19017 11347 11918 11861 14030.9 1984 12713 15209 15017 10999 18267 23819 24807 23455 19071 16311 13945 12100 17142.8 1985 16340 7275 5713 5145 11521 23939 23884 24960 20803 15332 11312 13862 15007.2 1986 7636 9100 13377 11943 15451 23149 30434 26095 16183 18473 20007 16821 17389.1 1987 10803 11043 9573 11560 22259 23375 23599 21256 18157 15781 9534 8074 15417.8 1988 10165 14439 8427 9598 17208 24898 27599 25125 18334 15480 14432 16336 16836.8 1989 15402 16454 17997 15375 19840 30020 30191 21712 15014 17393 15190 10742 18777.5 1990 7691 14553 11585 17046 24635 30304 28774 22251 16969 10890 9552 15697 17495.6 1991 12475 6967 12929 13228 22565 25892 29869 26826 19965 9132 7964 9755 16463.9 1992 9991 5863 11098 10353 12991 16075 19049 21971 15976 8483 8229 13206 12773.8 1993 12068 10875 15423 19093 23709 23806 24503 19949 17362 13721 18286 16007 17900.2 1994 11794 12159 9382 14997 22884 27825 24200 21488 21258 16278 9104 11925 16941.2 1995 6822 7386 10339 7868 16792 25381 26323 20765 14395 9149 12195 14206 14301.8 1996 12316 16515 17877 13323 21336 27017 29211 25522 17019 14722 13731 14772 18613.4 Avg 10462.3 9997.8 10992.5 12902 19928.5 24731.8 25016.8 21866.1 17364.2 13832 12192.5 12473.3 15980 Std Dev 2531.07 3885.98 3838.33 3499.01 3781.05 3242.7 3310.06 2599.51 1829.4 2996.54 3260.69 2573 1594.08