摘要
以洮河干流站实测水温、冰情资料为依据,采用相关分析、线性回归的方法分析水电站建设前上下游站水温年序列关系和冰情发生和消失之间的对应规律,进而研究水电站建设后河流水温及冰情的变化情况。分析结果表明:水电站建设对河流热状况的影响明显,引蓄水大坝下游各站的年平均水温升高了0.5℃,上半年冰情提前结束,下半年冰情推后出现,封冻现象完全消失。
Based on the observed data of water temperature and ice conditions on the Taohe River,using the correlation analysis and linear regression,this paper analyzed the corresponding law between annual serial relation of water temperature and occurrence and disappearance of ice condition in the upstream and downstream before construction of hydropower station,and studied the change of water temperature and ice condition of river after construction.The results show that the construction obviously impacts the thermal state of river,annual water temperature of downstream stations of dam increased by 0.5℃,ice condition advanced in first half year and delayed in second half year,the frozen phenomenon completely disappeared.
出处
《水文》
CSCD
北大核心
2010年第4期88-91,共4页
Journal of China Hydrology
关键词
热状态
响应
水电开发
洮河
thermal state
response
hydropower development
Taohe River
