Non-Point Source Pollution Modelling with GIS: Development of Appropriate Procedure for Estimation of RUSLE EI30 Index and Validation of AGNPS/ANNAGNPS Model - Couverture souple

Mohamed Nor Azhari, Azman; Ahamad Mohd Sanusi, S.; Shamshad, Ahmad

 
9783844318210: Non-Point Source Pollution Modelling with GIS: Development of Appropriate Procedure for Estimation of RUSLE EI30 Index and Validation of AGNPS/ANNAGNPS Model
Couverture souple
ISBN 10 : 3844318216 ISBN 13 : 9783844318210
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

Over the last few decades, non-point source (NPS) pollution has grown into a global environmental issue. The Annualized Agricultural Non-Point Source pollutant model (AnnAGNPS) is a watershed modelling tool to predict runoff, peak flow, sediment loading and nutrient loadings. The present study has been carried out in Seberang Perai Selatan to develop regional models for rainfall erosivity (EI30) values, to evaluate the performance of AnnAGNPS under Malaysian condition and to introduce the model as a long-term watershed monitoring system in the country. Three different modelling procedures were applied for the estimation of monthly rainfall erosivity values. While storm rainfall (P) and duration (D) data were used in the first approach, the second approach used monthly rainfall for days with rainfall ? 10 mm (rain10) and monthly number of days with rainfall ? 10 (days10). The third approach however used the Fournier index as the independent variable. Using data from additional sixteen stations and the Fournier index based regional model, EI30 values were computed for each month.

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Présentation de l'éditeur

Over the last few decades, non-point source (NPS) pollution has grown into a global environmental issue. The Annualized Agricultural Non-Point Source pollutant model (AnnAGNPS) is a watershed modelling tool to predict runoff, peak flow, sediment loading and nutrient loadings. The present study has been carried out in Seberang Perai Selatan to develop regional models for rainfall erosivity (EI30) values, to evaluate the performance of AnnAGNPS under Malaysian condition and to introduce the model as a long-term watershed monitoring system in the country. Three different modelling procedures were applied for the estimation of monthly rainfall erosivity values. While storm rainfall (P) and duration (D) data were used in the first approach, the second approach used monthly rainfall for days with rainfall ? 10 mm (rain10) and monthly number of days with rainfall ? 10 (days10). The third approach however used the Fournier index as the independent variable. Using data from additional sixteen stations and the Fournier index based regional model, EI30 values were computed for each month.

Biographie de l'auteur

Azman Mohamed Nor Azhari, PhD. research student at Universiti Sains Malaysia. Tutor, Faculty Technical & Vocational Education at Sultan Idris Education University.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3844318216
ISBN 13 
9783844318210
Reliure
Broché
Nombre de pages
156
Coordonnées du fabricant
non disponible
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