水资源与水工程学报Issue(5)：32-36,5.DOI:10.11705/j.issn.1672-643X.2014.05.007
黄河源区河道冰凌特征变化及影响因素分析
Analysis of change and influence factor of ice regime character in Yellow River source area
摘要
Abstract
The Yellow River is one of the most seriously-affected areas where the melting ice flood disas-ters often take place.The source area of the Yellow River is the research gap of ice-slush..Based on ana-lyzing the meteorological and hydrological data of the Yellow River source area, this paper selected three representative cross sections, summarized main characters of the ice regime.It then analyzed the dates of freeze-up and break-up of the river ,and the change rule of the largest ice thickness in winter.The result shows that the freeze-up goes from upstream to downstream.The dates have delaying trend,but the total number of freeze-up days is decreased and the largest ice thickness each station in winter is different. meanwhile the break-up process goes on the contrary.The main influence factors of ice regime are air tem-perature, average flow in winter witch can be taken as forcast factors to further research.关键词
黄河源区/凌情特征/变化趋势/气温Key words
Yellow River source area/character of ice regime/change trend/temperature分类
天文与地球科学引用本文复制引用
杜一衡,郝振纯,李伟玲,鞠琴,鲁承阳,畅俊杰..黄河源区河道冰凌特征变化及影响因素分析[J].水资源与水工程学报,2014,(5):32-36,5.基金项目
全球变化研究国家重大科学研究计划项目（2010CB951103）；国家自然科学基金重点项目（40830639）；2011年度高等学校博士学科点专项科研基金（20110094110013）；国家重点实验室团队项目 （）
