A nonparametric kernel estimation of the flood frequency with historic information is presented in this paper. The limitation in assuming a distribution type is overcome.
本文提出了在有历史洪水情况下洪水频率的非参数核估计方法，克服了现行方法假定分布型式的局限。
A new method of least square is raised in curve fitting of flood frequency calculating and its specific properties are analysed.
提出了在洪水频率计算时适线法中最小二乘方的一种新的求解方法，并对其特性进行分析。
Flood frequency (return period) is referring to recurrence probability of flood in certain period.
洪水频率(或重现期)是指一定时期内某种洪水出现的机率。
It can be seen that the frequency curve calculation is basically reasonable and show the estimation of "1482 flood" return period is rational after putting palaeofloods into flood series.
把古洪水加入到洪水系列后进行频率计算，可以看出频率曲线基本合理，说明对1482年洪水重现期的判断是合理的。
Regional flood frequency analysis is a useful approach method that avoids the shortness of at-site sample series and estimates design flood for un-gauged area.
区域频率分析能充分利用相似流域组的资料来扩充信息量，克服单站样本系列资料短缺的局限，解决无资料地区设计洪水的估算问题。
Considering the combined action of peak flood and flood volume, flood frequency use analysis by synthesis method in computer software.
考虑洪峰流量、洪水总量对洪水频率的共同决定作用，计算机软件中洪水资料频率的判断，采用综合分析法。
Flood risk map reflect the different frequency flood and the scope and extent of a region likely to be flooded.
洪水风险图是反映不同频率的洪水发生时，某一区域可能遭受洪水淹没的范围和程度的地图。
The riparian vegetation in the subtropical zone develops well and the evolution of vegetation community depends mainly on the flood frequency and flooding elevation.
亚热带地域河边植被发育较快，植被演替主要决定于淹没频率与高程。
Drought, flood, frost and hail are major meteorological disasters with the characteristics of high frequency, wide distribution and serious conditions etc. in Shandong Province.
干旱、洪涝、霜冻、冰雹是山东省最主要的气象灾害，具有频率高、范围广、灾情重等特征。
The results of the losses of soil is that it increases the frequency and the degree of flood waterlogging disaster under the same rainfall condition.
导致在同样降雨条件下，加剧了洪涝灾害的发生频率和灾害程度。
At present, the scheme of enhancing robustness of the ALM include: reducing the frequency of failure nodes, failure detection and tree reconstruction technique, flood mechanism, multi-trees and rings.
目前增强应用层组播鲁棒性的方案主要包括：降低失效节点发生频率、失效检测和树重构技术、多树环结构和使用洪泛机制。
Designed flood of reservoir is a typical flooding process under given engineering safety standard. The frequency of designed flood is regarded as hydrological risk.
水库设计洪水就是在给定工程安全标准情况下某个典型洪水过程，设计洪水的频率特征表现的就是其水文风险。
Chencun Hydropower Station plays an important role in peaking and frequency modulation in power grid. Meanwhile, the reservoir also has the functions of flood prevention and irrigation.
陈村水电站在电网的调峰、调频中起着重要的作用，同时水库也面临着防洪、灌溉等任务。
Chencun Hydropower Station plays an important role in peaking and frequency modulation in power grid. Meanwhile, the reservoir also has the functions of flood prevention and irrigation.
陈村水电站在电网的调峰、调频中起着重要的作用，同时水库也面临着防洪、灌溉等任务。
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