1) flood grading
洪水分级
2) floods by levels
分级洪水
3) flood grade
洪水等级
1.
Classification of flood grades in mainstream of Jialing River;
嘉陵江干流洪水等级的划分探讨
2.
Three classification methods of flood grade;
洪水等级的三种划分方法
3.
The diversity of flood elements and complexity of flood are analyzed Two methods for classifying flood grades by flood recurrenceinterval or peak discharge of standard area are put forward in this paper And, the flood grades of the Yangtze River drainage basin in 1998 are analyzed
分析了洪水要素的多样性和洪水的复杂性,提出了利用洪水重现期划分洪水安全度等级和利用标准面积洪峰流量划分洪峰标准等级的两种方法,并对1998年长江流域的洪水等级进行了简要分析。
4) magnitudes
[英]['mægnitju:d] [美]['mægnə,tjud]
洪水量级
1.
Annual maximum flood occurrence dates and magnitudes both can provide important information for the hydraulic engineering design and the reservoir operation.
采用Von Mises分布拟合年最大洪水发生时间的概率分布,采用皮尔逊III型分布拟合年最大洪水量级的概率分布,选用能够较好反映年最大洪水发生时间和量级之间相关结构的Gumbel Archimedean Copula函数,建立两变量联合分布,并定义和分析条件频率、联合频率和两变量重现期。
5) flood classification
洪水分类
1.
Research for the flood classification index system in the Yangtze river;
长江洪水分类指标体系研究
2.
Analyzing the deficit of methods in flood classification,the fuzzy clustering model based on entropy weights for flood classification is put forward.
在分析传统洪水分类方法不足的基础上,将基于熵权的模糊聚类模型应用于洪水分类问题中。
3.
For a reservoir which uses precipitation forecast to carry out floodwater utilization,flood classification plays an important role in proposing the real operation rule under the condition of floodwater utilization.
洪水分类实际上是洪水强度大小辨别的优化问题。
补充资料：河道洪水演进(见河道洪水演算法)
河道洪水演进(见河道洪水演算法)
neaao non郎hUi河道洪水演进yanJ县n 见河道洪水演算法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条