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Modelling of Unsaturated Flow in Heterogeneous Soils Part 11:Stochastic Simulation of Water Flow over a Field
Unsaturated Flow Heterogeneous Soils Stochastic Simulation
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2009/10/27
Modelling of soil moisture conditions in spatially variable fields is treated using
stochastic methods. Spatial variability of moisture content in a vegetation covered
field is partly caused by fiel...
Modelling of Unsaturated Flow in Heterogeneous Soils Part I:Deterministic Simulations of Water Flow in Soil Profiles
Unsaturated Flow Heterogeneous Soils Deterministic Simulations
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2009/10/27
Water flow and solute transport in the upper soil layers are processes which are
of importance in many hydrological and agricultural applications. These processes
are occurring in a medium which has...
An Evaluation of the Importance of Transmissivity,Head and Concentration Data for Contaminant Transport Modelling
Importance of Transmissivity Concentration Data Contaminant Transport Modelling
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2009/10/27
The 3 basic data types of contaminant hydrology are examined by stochastic
modelling of a groundwater contamination case. The stochastic transport model,
which is of the Monte Carlo type, uses a num...
Principles and Confidence in Hydrological Modelling
Principles Confidence Hydrological Modelling
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2009/10/26
General principles in development and application of hydrological models are
discussed and related to the confidence in the results. The presentation is
mainly based ,on the experience from the work...
Conceptual Modelling of Water Loss on Flood Plains and its Application to River Yamuna Upstream of Delhi
Conceptual Modelling Water Loss
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2009/10/26
A water loss module for the river modelling system MIKE 11 has been developed
to account for water losses due to retention and infiltration on flood
plains. MIKE 11 including the water loss module h...
Modelling Streamflow Recession in Two Danish Streams
Streamflow Recession Two Danish Streams
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2009/10/26
The streamflow recession for two Danish streams is found not to follow the
traditionally used single exponential expression Q = Qo K', where K is the recession
constant. Three alternative equations,...
Modelling the Hydrological Response of Extreme Floods in Sweden
Hydrological Response Extreme Floods Sweden
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2009/10/26
Hydrological models are today used for simulating extreme floods with the purpose of designing dams and spillways. In doing so, an extrapolation beyond the floods of the calibration period is made. Th...
Numerical Modelling of Phase Change in Freezing and Thawing Unsaturated Soil
Numerical Modelling Phase Change Unsaturated Soil
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2009/10/26
This paper presents a new method for handling the phase change process in
numerical simultations of freezing and thawing soils. Moisture and heat transfer
in soils subjected to both freezing and tha...
Experiments of Conceptual Mathematical Groundwater Dynamics and Runoff Modelling in Latvia
Conceptual Mathematical Groundwater Dynamics Runoff Modelling
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2009/10/26
A mathematical model METUL for estimating the daily groundwater level and
drainage, surface and subsurface runoff in small areas is described. Input data
for the model are daily mean values of air t...
PDS-Modelling and Regional Bayesian Estimation of Extreme Rainfalls
PDS-Modelling Regional Bayesian Estimation Extreme Rainfalls
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2009/10/26
Since 1979 a country-wide system of raingauges has been operated in Denmark
in order to obtain a better basis for design and analysis of urban drainage
systems. As an alternative to the traditional ...
Uncertainty Analysis in Water Quality Modelling
Uncertainty Analysis Water Quality Modelling
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2009/10/23
An important part of regional planning of water resources and quality is cfficient
design of monitoring systems and proper use of hydrologic models (Beven
1993). In the design of monitoring systems ...
FEM-Modelling of Open Stormwater Detention Ponds
FEM-Modelling Open Stormwater Detention Ponds
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2009/10/23
Stormwater in urban areas is polluted with suspended materials vihich transport
heavy metals and degrade the quality of the receiving waters. Since open detention
ponds improve water quality, an inv...
3D Hydrogeological Modelling with an Expert GIS Interface
3D Hydrogeological Modelling Expert GIS Interface
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2009/10/23
Geographical Information Systems provide a powerful tool for creating threedimensional
(3D) datasets for sophisticated hydrogeological models. The article
describes a GIs with an expert system inter...
Concentration Data and Dimensionality in Groundwater Models:Evaluation Using Inverse Modelling
Concentration Data Groundwater Models Inverse Modelling
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2009/10/23
A three-dimensional inverse groundwater flow and transport model that fits hydraulic-
head and concentration data simultaneously using nonlinear regression
is presented and applied to a layered sand...
Subpermafrost Groundwater Modelling in Ny-Ålesund,Svalbard
Subpermafrost Groundwater Ny-Å lesund
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2009/10/23
Svalbard is a high arctic archipelago where the permafrost thickness is 150-450
m and almost continuous in ice-free areas. The model work was carried out in
N~-Alesundw, here the subpermafrost aquif...