黄河内蒙古段凌汛期槽蓄水增量影响因素分析
发布时间：2018-10-14 13:11
【摘要】：采用1952—2013年资料分析了黄河内蒙古河段凌汛期槽蓄水增量时空变化特点及主要影响因素,在此基础上建立了槽蓄水增量预估公式。黄河内蒙古河段槽蓄水增量呈逐年增加趋势,1990年起明显增加,加重了内蒙古河段防凌负担。分析表明,河道过流能力减小是造成槽蓄水增量增加的最主要因素,同时凌汛期上游来水量增加、凌汛期气温变化剧烈也是造成槽蓄水增量增加的重要因素。
[Abstract]:Based on the data from 1952 to 2013, the temporal and spatial variation characteristics and main influencing factors of channel water storage increment in Inner Mongolia reach of Yellow River during ice flood period are analyzed, and the prediction formula of channel water storage increment is established. The increment of channel water storage in Inner Mongolia reaches of the Yellow River is increasing year by year, and it has increased obviously since 1990, which has increased the burden of anti-ice in Inner Mongolia reach. The analysis shows that the decrease of channel overflow capacity is the most important factor that causes the increase of channel water storage increment, at the same time, the upstream water quantity increases during the ice flood period, and the temperature change is also an important factor that causes the increase of the channel water storage increment during the ice flood period.
【作者单位】： 黄河水利委员会水文局;黄河流域水资源保护局;
【基金】：水利部公益性行业科研专项(201301062) 黄河水文科技计划项目(文H1303)
【分类号】：TV882.1
，
本文编号：2270562
[Abstract]:Based on the data from 1952 to 2013, the temporal and spatial variation characteristics and main influencing factors of channel water storage increment in Inner Mongolia reach of Yellow River during ice flood period are analyzed, and the prediction formula of channel water storage increment is established. The increment of channel water storage in Inner Mongolia reaches of the Yellow River is increasing year by year, and it has increased obviously since 1990, which has increased the burden of anti-ice in Inner Mongolia reach. The analysis shows that the decrease of channel overflow capacity is the most important factor that causes the increase of channel water storage increment, at the same time, the upstream water quantity increases during the ice flood period, and the temperature change is also an important factor that causes the increase of the channel water storage increment during the ice flood period.
【作者单位】： 黄河水利委员会水文局;黄河流域水资源保护局;
【基金】：水利部公益性行业科研专项(201301062) 黄河水文科技计划项目(文H1303)
【分类号】：TV882.1
，
本文编号：2270562
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