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Erosion Predictions by Empirical Models in a Mountainous Watershed in Nepal
Erosion Predictions Empirical Models Mountainous Watershed Nepal
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2015/8/14
Soil erosion is a crucial problem in Nepal where more than 80% of the land area is mountainous. In this study, two commonly used empirical soil erosion models, Revised Universal Soil Loss Equation (RU...
Estimating land-use change impacts on direct runoff and non-point source pollutant loads in the Richland Creek basin (Illinois,USA) by applying the L-THIA model
land-use change runoff non-point source pollution hydrological model
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2015/8/13
An export coefficient approach to hydrological and non-point source (NPS) pollution modeling enables quick and simple assessment of long-term impacts for planning purposes. An export coefficient and g...
Hydrodynamics of topographically closed lakes in the Ethio-Kenyan Rift:The case of lakes Awassa and Naivasha
Awassa East African rift hydrology modeling Naivasha water balance
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2015/8/13
The hydrodynamics and the long-term water balance of two topographically closed crater lakes is presented in a comparative manner using a spread-sheet hydrological model. The main objective of the wor...
Sedimentation Study of Hirakud Reservoir through Remote Sensing Techniques
Sedimentation Reservoir Remote Sensing Techniques NIR
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2015/8/13
Any reduction in water spread area at a specified elevation over a time period is indicative of sediment deposition at this level. This when integrated over a range of water stages helps in computing ...
Case Studies of Applying Urban Surface Data in Evaluating Stormwater Management Issues
Urban runoff impervious surfaces suspended solids stormwater management non-point source pollution
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2015/8/13
Pollutant load estimation is often required to evaluate stormwater management issues associated with water quality and urban development. Land use (e.g. residential, commercial) is commonly employed a...
Application of an artificial neural network to estimate groundwater level fluctuation
groundwater level fluctuation estimating artificial neural network back propagation algorithms radial basis function MATLAB
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2015/8/13
This paper examines and compares the capability of an artificial neural network (ANN) with five different backpropagation (BP) algorithms, namely Gradient descent with momentum (GDM), Gradient descent...
Assessing aquifer vulnerability to arsenic pollution using DRASTIC and GIS of North Bengal Plain:A case study of English Bazar Block, Malda District,West Bengal,India
DRASTIC vulnerability arsenic groundwater Malda West Bengal
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2015/8/13
Geographic Information System (GIS) was utilized to apply a modified DRASTIC method to assess the aquifer vulnerability to pollution of English Bazar Block of Malda District, West Bengal, India. In th...
Spatial Variability and Prediction Modeling of Groundwater Arsenic Distributions in the Shallowest Alluvial Aquifers in Bangladesh
Arsenic Bangladesh distribution spatial variability semivariogram prediction models
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2015/8/13
Elevated arsenic in groundwater is the greatest environmental problem in Bangladesh. Spatial variability of arsenic in groundwater has been examined by semivariogram analysis that revealed high degree...
Modeling and Understanding the Relationship between Vegetation and Rainfall of a Tropical Watershed using Remote Sensing Data and GIS
NDVI rainfall modelling calibration verification
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2015/8/13
A model is developed to understand the relationship between satellite-derived NDVI and rainfall data in a large tropical catchment. Two Fourier-based modeling techniques with a seasonal component, viz...
Evaluation of the Wetland Mapping Methods using Landsat ETM+ and SRTM Data
wetlands remote sensing mapping delineation automated methods semi-automated methods Limpopo river basin
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2015/8/13
Overarching goal of this paper was to evaluate automated and semi-automated methods of mapping wetlands using Landsat ETM+ and SRTM data. Automated methods consisted of: (a) slope derived from SRTM, (...
A Spatially Distributed Event-Based Model to Predict Sediment Yield
Runoff sediment yield Geographic Information System GIS remote sensing watershed event-based
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2015/8/11
A study has been conducted in three sub-watersheds to model the spatial distribution of runoff and sediment yield. The basic structure of the model includes generation of runoff using SCS curve number...
Performances of Stochastic Approaches in Generating Low Streamflow Data for Drought Analysis
monthly-minimum daily discharge stochastic model ARIMA Thomas-Fiering
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2015/8/11
This study analyzed the monthly-minimum daily discharge data of each month from three gauge stations on Cekerek Stream for forecasting using stochastic approaches. Initially non-parametric test (Mann-...
Spatial Analysis of Urban Stormwater Quality
Spatial analysis temporal analysis stormwater Event Mean Concentration geostatistics pollutants
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2015/8/11
Urban stormwater non-point source pollutants are recognized as a major cause of receiving waters quality deterioration. To date most research has focused on specifying temporal variations of stormwate...
Spatial Modeling for Hydrological Response Behavior of an Arid Watershed, India-Remote Sensing and GIS approach
land use land cover vegetation vigour runoff soil erosion remote sensing Geographic Information System GIS
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2015/8/11
The paper discusses the applications of satellite remote sensing and GIS on characterization and spatial modeling of runoff and soil erosion of Birantiya Kalan, an arid watershed in the district of Pa...
Erosion Risk Assessment using an Empirical Model of Pacific South West Inter Agency Committee Method for Zargeh Watershed, Iran
MPSIAC Erosion Sediment Yield Iran
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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 ...