Country= South_Africa Station= AliwalNorth River= Orange Area= 37075 km2 Lat= -30.65 Lon= 26.69 Source= RivDIS PointID= 1453 Area Units= km2 Discharge Units= m3/sec Starting Year= 1964 Ending Year= 1986 Total Years= 23 Total Usable Years= 21 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1964 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 426 197 -9999 -9999 1965 95.1 56.3 4.42 86.4 26.1 17 33 38.8 99.1 63.1 86.2 20 52.13 1966 501 622 30.9 16.7 12.4 7.09 2.75 2.96 4 22.5 54.1 81.3 113.14 1967 165 1113 240 573 210 345 77.8 39.3 31.5 10.2 190 83.9 256.56 1968 28 14.6 39.4 65.5 174 33.5 39.6 12.9 42.8 21.8 23.7 209 58.73 1969 19.3 74.2 411 268 47.3 34.6 7 15.5 2.56 111 101 56.3 95.65 1970 77.1 110 15 6.76 3.64 2.93 4.12 8.81 46.2 216 112 233 69.63 1971 211 232 116 -9999 169 34.1 20.1 21.4 15.4 17.3 50.8 76.8 -9999 1972 392 720 621 122 130 53.6 19.8 7.63 4.21 46.7 78.2 30.5 185.47 1973 17 -9999 -9999 96.5 12.5 3.25 4.74 78.8 52.1 61.2 49.2 85.3 -9999 1974 603 1047 550 253 167 99.8 49.5 168 86.4 26.1 361 242 304.4 1975 165 517 470 86 44.2 28.9 -9999 18.7 58.3 158 292 458 -9999 1976 785 1008 1286 410 369 185 67 35.4 51.5 909 552 80.8 478.23 1977 102 437 565 99.6 58 27.6 21.2 14 38.9 230 149 70.3 151.05 1978 423 197 122 628 101 33.8 23.9 19.1 118 111 61.4 480 193.18 1979 92.3 127 116 21.6 22.9 21.1 59.2 217 173 267 93.7 175 115.48 1980 120 160 131 33.4 10.6 11.4 9.29 8.06 11.7 65.7 48.6 149 63.23 1981 331 378 238 85.2 91.6 185 30.3 130 183 -9999 84.1 200 -9999 1982 68.2 97.2 91.5 295 107 41.7 40.1 21.6 11.6 73 450 48 112.08 1983 17.6 29.1 24.9 32.5 35.7 35.7 46.9 39.2 19.6 43.1 70.9 243 53.18 1984 333 48.5 56.5 83.4 115 22.3 13.7 12.2 60.3 32.1 95.2 70.6 78.57 1985 82.7 421 223 63.1 16.7 20.6 11 3.46 1.54 32.3 340 476 140.95 1986 203 237 101 40.6 26.1 44.7 16.4 9.87 115 -9999 -9999 -9999 -9999 Avg 219.6 364.09 259.65 160.3 88.62 58.58 28.45 41.94 55.76 140.15 160.91 169.94 148.33 Std Dev 205.01 343.31 299.47 175.95 86.81 79.18 21.23 55.71 51.9 200.15 142.49 141.21 108.3