Analysis of Ice Regime Characteristics in the Ningxia-Inner Mongolia Reach of Yellow River in the Recent Ten Years
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Abstract:
In this paper, the characteristics of drift ice, freeze-up, and break-up dates were analyzed at the following four stations - Shizuishan, Bayangaole, Sanhuhekou, and Toudaoguai stations, in the Ningxia-Inner Mongolia reach of the Yellow River, and the ice peak and maximum channel-storage increment were also investigated. The results showed that the ice regime characteristics in the Ningxia-Inner Mongolia reach of the Yellow River have changed significantly in the recent 10 years due to the sustaining high temperature in the winter and reservoir control, which can be seen in the delayed freeze-up and break-up dates, decreasing in freeze-up duration, decreasing in ice peak flow, increasing in channel storage, and decreasing in the frequencies of ice dam and ice jam. The research can offer guidance on the mitigation of ice disasters in the Ningxia-Inner Mongolia reach of the Yellow River.
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