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《Yellow River》 2012-01
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Characteristics of Ice Condition in Ning-Meng Reach of the Yellow River from 2009 to 2010

CHEN Dong-ling,WANG bing,FAN min-hao(Hydrology Bureau of Yellow River Conservancy Commission,Zhengzhou 450004,China)  
The paper analyzed the characteristics of ice condition in Ning-Meng reach of the Yellow River from 2009 to 2010 and the cause of formation.The characteristics are as follows: early ice-running and freezing-up,development as cascade,thin ice cover,large water storage,higher water stage in local section,slow and late breaking-up,small ice flood and the largest water amount in 10 d is big.By analysis,the characteristics are mainly caused by air temperature sudden rising and sudden drop,in the same time,river channel deposition,engineering works in the river course hindering ice and water,reservoir regulation and artificial ice run diversion are also of the important reasons.
【CateGory Index】: P333
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