搜索结果: 1-15 共查到“水文学 Frequency”相关记录27条 . 查询时间(0.062 秒)
Evaluation of alternative formulae for calculation of surface temperature in snowmelt models using frequency analysis of temperature observations
alternative formulae surface temperature snowmelt models frequency analysis temperature observations
2010/4/7
The snow surface temperature is an important quantity in the snow energy balance, since it modulates the exchange of energy between the surface and the atmosphere as well as the conduction of energy i...
Areal Intensity-Duration-Frequency Curves for Short Term Rainfall Events in Lund
Areal Intensity-Duration-Frequency Curves Short Term Rainfall Events
2009/10/28
Design Storms, which are usually derived from point intensity-durationfrequency
(i-d-f) relationships, neither reflect the areal variations of the rainfall
pattern nor the dynamics of the moving sto...
Runoff peak frequency curves were derived from runoff flows observed in an
urban test catchment and from runoff flows simulated for storms selected from
two rainfall records. The first record, of a ...
The transformations (i) SMEMAX (ii) Modified SMEMAX (iii) Power and
Probability Distributions (iv) Weibull (a,P,y) or Extreme value type 111 (v)
Weibull (a,P,O) (vi) Log Pearson Type 111 (vii) Log B...
Frequency Analysis of Low Flows:Hypothetical Distribution Methods and a Physically Based Approach
Frequency Analysis Low Flows Hypothetical Distribution Methods
2009/10/27
A mixed log Pearson type I11 distribution, a double bounded probability density
function, partial duration series and a physically based approach are analyzed
for frequency estimates of low flows. T...
Proposed Swedish Spillway Design Floods in Relation to Observations and Frequency Analysis
Swedish Spillway Design Floods Observations Frequency Analysis
2009/10/27
Proposed guidelines for the computation of spillway design floods in Sweden
are described. The guidelines are based on the transformation of extreme
hydrological conditions to floods by use of conce...
Frequency of Extremes and its Relation to Climate Fluctuations
Frequency of Extremes Climate Fluctuations
2009/10/26
Possible consequences of climate change concern both changes in long-term
mean values of runoff and changes in frequency and magnitude of extreme
runoff events. The physical safety of dams and prote...
A Bivariate Extreme Value Distribution Applied to Flood Frequency Analysis
Bivariate Extreme Value Distribution Flood Frequency Analysis
2009/10/23
This article presents a procedure for use of the Gumbel logistic model to represent
the joint distribution of two correlated extreme events. Parameters of the
distribution are estimated using the me...
LOW FLOW FREQUENCY ANALYSIS OF THE NILÜFER RIVER AT THE GEÇITKÖY STATION, TURKEY
Frequency analysis critical drought flows low flows surface water pollution
2009/10/13
Frequency analysis of low flows (critical drought flows) is the first step in surface water
pollution control. In this study, a Type-3 Extremal (or Weibull) Distribution with a lower limit
is appl...
The dielectric calibration of capacitance probes for soil hydrology using an oscillation frequency response model
soil hydrology oscillation frequency response model
2009/5/27
Capacitance probes are a fast, safe and relatively inexpensive means of measuring the relative permittivity of soils, which can then be used to estimate soil water content. Initial experiments with ca...
Threshold effects in catchment storm response and the occurrence and magnitude of flood events：implications for flood frequency
catchment storage flood frequency flood
2009/5/12
The aim of this paper is to illustrate the effects of selected catchment storage thresholds upon runoff behaviour, and specifically their impact upon flood frequency. The analysis is carried out with ...
A conceptual investigation of process controls upon flood frequency：role of thresholds
flood frequency flood generation process
2009/5/12
Traditional statistical approaches to flood frequency inherently assume homogeneity and stationarity in the flood generation process. This study illustrates the impact of heterogeneity associated wit...
Corrigendum to “Regional precipitation-frequency analysis and spatial mapping for 24-hour and 2-hour durations for Washington State” published in Hydrol. Earth Syst. Sci., 11, 415–442, 2007
precipitation-frequency analysis spatial mapping Washington State
2009/5/12
Corrigendum to “Regional precipitation-frequency analysis and spatial mapping for 24-hour and 2-hour durations for Washington State” published in Hydrol. Earth Syst. Sci., 11, 415–442, 2007.
A conceptual investigation of process controls upon flood frequency：role of thresholds
rainfall-runoff flood
2009/5/8
Traditional statistical approaches to flood frequency inherently assume homogeneity and stationarity in the flood generation process. This study illustrates the impact of heterogeneity associated with...
Corrigendum to “Regional precipitation-frequency analysis and spatial mapping for 24-hour and 2-hour durations for Washington State” published in Hydrol. Earth Syst. Sci., 11, 415–442, 2007
Regional precipitation-frequency analysis Washington State
2009/5/8
Corrigendum to “Regional precipitation-frequency analysis and spatial mapping for 24-hour and 2-hour durations for Washington State” published in Hydrol. Earth Syst. Sci., 11, 415–442, 2007。