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139736eo.pdf (20MB) - Japan Oceanographic Data Center

139736eo.pdf (20MB) - Japan Oceanographic Data Center

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01601402 400ro0 hL 350Q2 300625025 2003r/,4-q 150s2P 100120e100 +*80 Llu60 $P40 8920 Q0 82P50I I I I I I I I1930 1940 1950 1960 1970 i980Figure 2. Discharge and sediment loads for the Indus River atKotri (about 250 km from the Indus mouth) for theyears 1931-1979. Dashed lines represent 5-year runningmean averages. The decrease in sediment load in thelate 1940's was in response to construction of irrigationbarrages in the lower reaches of the river. Thedecrease in water discharge in the early 1960'sresulted from construction of hydroelectric dams inthe upper reaches of the river. From MILLIMAN al.(1 984) .201

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