摘要
汛期分期方法是水库汛期划分的技术手段,合理的汛期划分是实现汛限水位分期控制的基础,是洪水资源化研究的重要组成部分。反映因素全面和划分结果直观是汛期分期方法应用的关键,针对矢量统计法在汛期分期应用中的局限性,提出了同时考虑时间密度和统计样本量级的改进措施,并以实例分析了改进后的矢量统计法在汛期分期应用中的适用性。结果表明,改进后的矢量统计法克服了统计值时间重合和统计点反映信息单一的缺陷,分期结果合理。
The way of flood season division is the technical method for the reservoir flood season dividing. The reasonable flood season division is the foundation to realize flood limited water level control by stages and the important constituent of research of flood utilizition. The reflected factors were complete and the dividing results were direct-view is the key for application of flood season division method. Pointed to the limitation of vector statistics in employing flood season dividing , the anthor proposed an improvement measure for considering the time density and the sample quantity, and analysized the applicability of the improved vector statistical method in flood season dividing with an instance. Finally, the results indicated that the improved vector statistical method can overcome the defect which the counting time was coincident and single infor- mation can only be reflected, the result of flood season dividing was also rational.
出处
《水资源与水工程学报》
2007年第5期28-30,共3页
Journal of Water Resources and Water Engineering
基金
兵团高新技术研究发展计划(2007GX17)
新疆兵团绿洲生态农业重点实验室开放课题(200405)
石河子大学科技成果转化资金引导专项(KGCG2005-07)
关键词
汛期分期
矢量统计
时间密度
样本量级
flood season division
vector statistics
time density
sample quantity
