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A Method for Extracting Stream Channel Flow Paths from LiDAR Point Cloud Data
LiDAR Point Cloud Streams
2015/8/14
Traditional methods of delineating stream channel networks use gridded raster elevation data. Direct use of LiDAR point clouds, without first creating a raster or grid, could improve efficiency and ac...
A Method for Quantifying Stream Network Topology over Large Geographic Extents
stream network topology upstream cell count landscape ecology digital elevation models
2015/8/14
An understanding of stream network topology is necessary for a landscape-level perspective of stream hydrology and ecology. We present a method for quantifying stream network topology that overcomes c...
Erosion Risk Assessment using an Empirical Model of Pacific South West Inter Agency Committee Method for Zargeh Watershed, Iran
MPSIAC Erosion Sediment Yield Iran
2015/8/11
Watershed degradation due to soil erosion and sedimentation is one of the major environmental problems in Iran. In addressing the issue, a study on the validity of an empirical model of Pacific South ...
A ROBUST PCT METHOD BASED ON COMPLEX LEAST SQUARES ADJUSTMENT METHOD
Complex Least Squares Polarimetric interferometric SAR (POLInSAR) Polarization Coherence Tomography (PCT) Vegetation height inversion
2014/4/24
Polarization Coherence Tomography (PCT) method has the good performance in deriving the vegetation vertical structure. However,
Errors caused by temporal decorrelation and vegetation height and grou...
Investigation of a parameter estimation method for contaminant transport in aquifers
Investigation parameter estimation method contaminant transport aquifers
2009/12/4
Real world groundwater aquifers are heterogeneous and system variables are not uniformly distributed across the aquifer. Therefore, in the modelling of the contaminant transport, we need to consider t...
Derivation of effective and efficient data set with subtractive clustering method and genetic algorithm
Derivation effective and efficient data set subtractive clustering method genetic algorithm
2009/12/4
Success of any forecasting model depends heavily on reliable historical data, among others. Data are needed to calibrate, fine tune and verify any simulation model. However, data are very often contam...
Characterization of peak flow events with local singularity method
peak flow events local singularity method
2009/10/30
Three methods, return period, power-law frequency plot (concentration-area) and local singularity index, are introduced in the paper for characterizing peak flow events from river flow data for the pa...
ADAPTATION AND APPLICATION OF THE KARAZEV METHOD TO THE RATIONALIZATION OF QUEBEC'S HYDROMETRIC BASIC NETWORK
KARAZEV METHOD RATIONALIZATION QUEBEC'S HYDROMETRIC BASIC NETWORK
2009/10/29
In a research program carried out by 1.N.R.S.-Eau, certain principles
inherent to the rational development of hydrometric networks were applied
to the Quebec network. This study describes an applica...
A Method of Calculating the Hydraulic Properties of Leaky Aquifer Systems
Hydraulic Properties Leaky Aquifer Systems
2009/10/29
This paper describes a method for calculating the hydraulic properties of esker
aquifers where a leakage to the aquifer is induced by ptimping. The method is an
extension of the channel method descr...
The Muskingum method of flood routing is critically reviewed. The kinematic
wave approach is used to compare and contrast the conclusions deducible
from the conventional hydrological approach. The i...
Discharge Measurements by a New-Formed Relative Salt-Dilution Method in Small Turbulent Streams
Discharge Measurements New-Formed Relative Salt-Dilution Method Turbulent Streams
2009/10/28
Water discharges in small turbulent streams are determined by injecting concentrated
salt solutions at constant feed-rate and measuring the dilution level
downstream by conductivity readings in situ...
Inadequacies in the Technique of Resistivity Method for Location of Waterwell Sites in Hard Rock Areas
Technique of Resistivity Method Location of Waterwell Sites Hard Rock Areas
2009/10/28
Large scale exploratory work for groundwater in hard rock region of South
India has been carried out by the authors during the last ten years, using
electrical resistivity method. The standard metho...
Finite Element Analysis of Square Aquifers Containing Pumped Wells and Comparison with Finite Difference Method
Finite Element Analysis Square Aquifers Pumped Wells
2009/10/28
The numerical solution of the behaviour of discrete time steps in digital computer
analysis of square aquifers containing pumped wells is examined by
using the finite element method with a 4 node li...
An Indirect Method for Determination of the Parameters of Flood Plain Aquifers
Indirect Method Determination Flood Plain Aquifers
2009/10/27
An indirect method of determining flood plain aquifer parameters from estimated
autocorrelation of groundwater table data is presented. For this purpose
a stream-aquifer system is approximated by a ...
An Improved Rational Method for Urban Runoff Application
Improved Rational Method Urban Runoff Application
2009/10/26
In the initial stages of drainage systems planning and for independent tests of
advanced runoff model performance there is a need for a simple point flow
model. In these cases a method is proposed w...