水资源与水工程学报2016，Vol.27Issue(2)：24-29,6.DOI:10.11705/j.issn.1672-643X.2016.02.05
汉江上游全新世古洪水水文频率分析研究
Analysis of hydrology frequency of holocene paleo flood in the upperstream of Hanjiang river
摘要
Abstract
The profile of sediment flow of paleo flood had been found in TJZ of Yun County in the upper-stream of Hanjiang river. From the analysis of physical and chemical properties and its OSL dating age, the paper found that the profile recorded four paleo flood events, which occurred before 12600 to 12400 years, 4200 to 4000 years. , 3100 to 3000 years and 1900 to 1800 years. Through the hydrological in-formation of slackwater deposit, the four paleo flood discharges were calculated by HEC-RAS model, they were 54920, 51300, 43500 and 37050 m3/s. Then by use of the data of gauge flood, the data of gauge and historical flood,the data of gauge and historical together with palaeo flood,the paper set up the frequency of flood series of different time scales. The results showed that the palaeo flood data being con-nected with the gauge and historical flood data prolonged the flood data sequence and also advanced the credibility of flood frequency calculation. The result has important realistic significance for studying palaeo flood records in sedimentological evidence. It is not only to gain long-time scales flood data, but also provided important hydrological data for the construction of water conservancy and cross river traffic, flood control and utilization in the upperstream of Hanjiang river.关键词
古洪水/历史洪水/实测洪水/洪水频率计算/汉江Key words
palaeo flood/historical flood/gauge flood/calculation of flood frequency/Hanjiang river分类
天文与地球科学引用本文复制引用
李晓刚,查小春,刘科..汉江上游全新世古洪水水文频率分析研究[J].水资源与水工程学报,2016,27(2):24-29,6.基金项目
国家社科基金项目(14BZS070) （14BZS070）
陕西省教育厅科学研究计划项目(15JK1224) （15JK1224）
商洛市科技计划项目(SK2014-01-05) （SK2014-01-05）
