摘要
为适应站队结合的需要,必须对流量测次作精简分析。本文以湖南省株洲站队结合区为研究实例,在测站特性分析的基础上,根据水力因素和环境因素对水位流量关系的影响,将区内测站按水位流量关系稳定、较稳定、不稳定进行分类。对于不同类型的测站采取不同的分析方法和途径建立简化测验的推流模型,对于水位流量关系不稳定的测站,根据实测资料概化出水位流量关系模型,并以随机抽样的方法,在原长期驻测条件下所取得的稠密测次中,抽取适量测次判定该时段所使用的水位流量关系曲线重新推流,据以研究测次精简后对推流精度的影响。精度指标以精简测次前后的月年均值、洪峰流量、洪水总量偏离值的标准差表示。在此基础上提出了一套允许标准差指标的初步方案。
Reducing number of discharge measmements is of great importamce for the combination of sitegauging and tour gauging for hydrological data collecting and Processing, based oon the analysis of thegauging station characteristics,taking Zhuzhou Hydrological Region of Hunan Province as an example,classifiesestablished with different analysing methods for various kinds of stations, On this basis,generalizedestablished with different analysisng methods for various kinds of stations.On this basis generalizedstag-discharge relation models are established with the observed data for the stations with unsteadystage-discharge relation. The estimated results of discharge are satisfaetory.These models proposed in this paperare suitable for other similar hydrological regions.
出处
《水文》
CSCD
北大核心
1995年第2期11-18,共8页
Journal of China Hydrology
关键词
流量测验
精简分析
水文站
水文勘测
combination of site gauging and tour gauging.discharge measuremnet,analysis of number re-ducing