搜索结果: 1-14 共查到“水文物理学 COMPARISON”相关记录14条 . 查询时间(0.171 秒)
Comparison of quadratic and non-linear programming (QP and NLP) optimization models in groundwater management
quadratic and non-linear programming optimization models groundwater management
2009/12/4
This project is concerned with the comparison of two algorithms used in groundwater management models, based on Quadratic Programming (QP) and Non-linear Programming (NLP) models.A quadratic objective...
Comparison of gliding box and box-counting methods in river network analysis
gliding box box-counting methods river network analysis
2009/11/3
We use multifractal analysis to estimate the Rényi dimensions of river basins by two different partition methods. These methods differ in the way that the Euclidian plane support of the measure is cov...
Particle dispersion processes in two-dimensional turbulence:a comparison with 2-D kinematic simulation
Particle dispersion processes two-dimensional turbulence 2-D kinematic simulation
2009/11/2
We study numerically the comparison between Lagrangian experiments on turbulent particle dispersion in 2-D turbulent flows performed, on the one hand, on the basis of direct numerical simulations (DNS...
COMPARISON OF DIMENSIONLESS UNIT HYDROGRAPHS IN THAILAND AND TAIWAN
COMPARISON DIMENSIONLESS UNIT HYDROGRAPHS THAILAND TAIWAN
2009/10/29
The characteristics of dimensionlcss unit hydrographs were derived from
floods from watersheds smaller than 1000 square kilometers locatcd in
Thailand. The dimensionless unit hydrographs were expres...
A Comparison of Water Lag Times for Converging and Plane Surfaces
Water Lag Times Converging Plane Surfaces
2009/10/27
In order to examine the influence of the degree of convergence for converging
geometry on lag time, a comparison of surface water lag times for converging
and plane surfaces is made using the Overto...
Inter-Comparison of two Snow Models with Different Complexity using Data from an Alpine Site
Inter-Comparison Snow Models Alpine Site
2009/10/22
This contribution describes the modelization of the snow cover evolution with the two physically based snow models CROCUS and ESCIMO at the Col de Porte station (1,325 m a.s.l., French Alps) for the ...
COMPARISON OF METHODS FOR ESTIMATING REFERENCE EVAPOTRANSPIRATION IN SOUTHERN CALIFORNIA
California Irrigation Management Information System evapotranspiration
2009/10/12
A significant part of precipitation returns back to the atmosphere by evapotranspiration. Developing formulations aimed at accurately quantifying evapotranspiration over a given region can aid a wide ...
How crucial is it to account for the antecedent moisture conditions in flood forecasting? Comparison of event-based and continuous approaches on 178 catchments
soil moisture accounting flood forecasting moisture conditions
2009/7/22
This paper compares event-based and continuous hydrological modelling approaches for real-time forecasting of river flows. Both approaches are compared using a lumped hydrologic model (whose structure...
Comparison of three stream tube models predicting field-scale solute transport
convective lognormat transfer stochastic stream tube solute transport
2009/6/8
In this paper the relation between local- and field-scale solute transport parameters in an unsaturated soil profile is investigated. At two experimental sites, local-scale steady-state solute transp...
Critical loads for soils and freshwaters：a comparison methods at the Plynlimon catchments
Critical loads freshwaters Plynlimon catchments soils
2009/6/8
International agreements aimed at reducing sulphur deposition from the atmosphere are now focused on the "critical loads" concept. This provides a distributed link between sources and receptors of aci...
A comparison of methods for estimating soil characteristics in regional acidification models; an application of the MAGIC model to Scotland
Acid Neutralising Capacity soil depth soil physico-chemical
2009/6/5
The results from an application of MAGIC (Model of Acidification of Groundwater In Catchments) to 733 Scottish catchments are presented. The availability of representative, good quality soil data is f...
A comparison between reference transpiration and measurements of evaporation for a riparian grassland site
transpiration evaporation riparian grassland site
2009/5/27
This paper compares direct measurements of evaporation with the values predicted for reference transpiration. The measurements of actual evaporation were made using an eddy correlation device on a gra...
A comparison of artificial neural networks used for river forecasting
multi layer perceptron artificial neural network radial basis function network
2009/5/27
This paper compares the performance of two artificial neural network (ANN) models – the multi layer perceptron (MLP) and the radial basis function network (RBF) – with a stepwise multiple linear regre...
The comparison of two models that determine the effects of a vegetation canopy on passive microwave emission
passive microwave emission vegetation canopy microwave brightness temperature
2009/5/26
Two contrasting models are used to account for the effects of vegetation on microwave emission from the soil. These are: a simple model which requires two empirically derived parameters as input data ...