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Subsymbolic methods for data mining in hydraulic engineering
Subsymbolic methods data mining hydraulic engineering
2009/12/7
This paper describes the results of experiments with artificial neural networks (ANNs) and genetic programming (GP) applied to some problems of data mining. It is shown how these subsymbolic methods c...
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...
The Step-Drawdown Test and Non-Darcian Flow:A Critical Review of Theory,Methods and Practice
Step-Drawdown Test Non-Darcian Flow Critical Review
2009/10/28
Step-drawdown tests are usually carried out with succeeding steps of increased
pumping yield, each step of equal duration of 1 hour. The background for this
procedure 1s reviewed, and it is shown, t...
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...
Simulation of Discharge using Different Methods of Meteorological Data Distribution,Basin Discretization and Snow Modelling
Simulation of Discharge Meteorological Data Basin Discretization Snow Modelling
2009/10/26
This contribution investigates the performance of discharge modelling when
proceeding from rather simple methods of snowmelt modelling to more sophisticated,
distributed approaches. In all cases, th...
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 ...
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...
Snow, whilst not a dominant feature of Britain's maritime climate, can exert a significant influence on major floods through its contribution as snowmelt. Flood warning systems which fail to take acco...