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How to reach a compromise solution on technical and non-structural flood control measures
agreement averaging operator consensus environmental decision making flood risk management fuzzy uncertainty multi-aspect decision
2015/3/10
Harmful impacts of floods are the result of an interaction between extreme hydrological events and environmental, social, and economic processes. Flood management should consider many diverse aspects ...
Algebraic Solution of the Horton-Izzard Turbulent Overland Flow Model of the Rising Hydrograph
Algebraic Solution Horton-Izzard Turbulent Overland Flow Model Rising Hydrograph
2009/10/29
In the differential equation of the overland turbulent flow which was first postulated
by Horton, Eq.(6), the value of (. equals 513. For this value of c, the flow
equation could not be integrated a...
Aluminium in Groundwater Possible Solution Equilibria
Aluminium Groundwater Solution Equilibria
2009/10/28
Recent investigations in the west coast region of Sweden has revealed the
occurrence of groundwaters with a pH of around 4 and, further, alarmingly
high concentrations of soluble aluminium. The reas...
Time Lag Solution of the Muskingum Flood Routing Equation
Time Lag Solution Muskingum Flood Routing Equation
2009/10/28
Use of time lag in the Muskingum method of flood routing is explained by
considering some specific examples. Time lag method removes undesirable
predicted results which are obtained by the conventio...
A Dimensionless Solution of Lag Time for Diverging Surface
Dimensionless Solution Lag Time Diverging Surface
2009/10/27
Using the kinematic wave theory, a dimensionless expression is obtained, and
solved numerically in order to estimate the lag time for diverging surfaces. The
findings show that the dimensionless lag...
NUMERICAL SOLUTION FOR TRANSIENT WELL FLOW IN AN UNCONFINED-CONFINED AQUIFER SYSTEM
TRANSIENT WELL FLOW groundwater aquifer system
2009/10/12
It is quite common that the extraction of groundwater is from more than one aquifer system, where a combination of unconfined and confined aquifers is found. The problem lies in how to find the discha...
Effects of summer drought on peat soil solution chemistry in an acid gully mire
dissolved organic carbon flush wetland soil solution chemistry
2009/6/8
In a field experiment to investigate potential impacts of climatic change, a small area of flush wetland in Wales was subjected to three successive years of simulated summer drought/rewetting (autumn...
A comparative study of the soil solution chemistry of two Amazonian forest soils (Central Amazonia, Brazil)
soil water chemical composition forest soils
2009/6/8
Analyses of the chemical composition of rapidly percolating soil water were used to study the genesis of a shallow podzol in a Campinarana forest and a clayey ferralsol from a typical rainforest loca...
Modelling the response of soil and soil solution chemistry upon roofing a forest in an area with high nitrogen deposition
nitrate (NO3) sulphate (SO4) soil solution chemistry
2009/6/5
In the Speuld forest, the Netherlands, the dynamic soil acidification model NuCSAM has been applied to a manipulation experiment in which part of the forest was roofed to control nitrogen (N) and sulp...
An analytical solution for the estimation of the critical available soil water fraction for a single layer water balance model under growing crops
soil water single layer water balance model growing crops
2009/6/5
In the framework of simplified water balance models devoted to irrigation scheduling or crop modelling, the relative transpiration rate (the ratio of actual to maximal transpiration) is assumed to dec...