摘要
分析了2009—2010年度黄河宁蒙河段凌情的特点及其成因:该年度凌情特点是流凌、封河早,封河发展呈阶梯状、封冻冰盖薄、槽蓄水量大、局部河段水位偏高、开河速度慢、开通日期晚、开河洪峰小、开河最大10 d水量大等;气温骤升骤降是造成上述特点的最主要因素,河道淤积、河道工程阻冰阻水、水库调度及人工分凌等是影响该年度凌情的重要因素。
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.
出处
《人民黄河》
CAS
北大核心
2012年第1期22-24,共3页
Yellow River
关键词
气温
槽蓄水量
封河
开河
凌汛
2009—2010年
宁蒙河段
黄河
air temperature
water storage
freezing-up
breaking-up
ice flood period
2009 to 2010
Ning-Meng Reach
Yellow River
