An overview of the self-organizing map algorithm, on which the papers in this issue are based, is presented in this article.

The Self-Organizing Map

This paper reviews current optimization technique developed to solve reservoir operation problems in water resources. The application of conventional, especially evolutionary computation, combination of simulation-optimization and multi objectives optimization in reservoir operation will be discussed and investigated. Furthermore, new optimization algorithm from other applications will be presented by focusing on Artificial Bee Colony (ABC) and Gravitational Search Algorithm (GSA) as alternative methods that can be explored by researchers in water resources field. Finally this paper looks into the challenges and issues of climate change in reservoir optimization.

Reservoir Optimization in Water Resources: a Review

Assessment of hydrology, sediment and particulate organic carbon yield in a large agricultural catchment using the SWAT model

Evaluation of stochastic reservoir operation optimization models

The demand for fresh water in Hambantota District, Sri Lanka is rapidly increasing with the enormous amount of ongoing development projects in the region. Nevertheless, the district experiences periodic water stress conditions due to seasonal precipitation patterns and scarcity of surface water resources. Therefore, management of available groundwater resources is critical, to fulfil potable water requirements in the area. However, exploitation of groundwater should be carried out together with artificial recharging in order to maintain the long term sustainability of water resources. In this study, a GIS approach was used to delineate potential artificial recharge sites in Ambalantota area within Hambantota. Influential thematic layers such as rainfall, lineament, slope, drainage, land use/land cover, lithology, geomorphology and soil characteristics were integrated by using a weighted linear combination method. Results of the study reveal high to moderate groundwater recharge potential in approximately 49% of Ambalantota area.

An approach to delineate groundwater recharge potential sites in Ambalantota, Sri Lanka using GIS techniques

Arsenic and trace element concentration in surface water and agricultural soils in the southeast of Córdoba province, Argentina

Effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the Cachapoal river, Chile [Efecto de la red de canales de riego en las interacciones de agua superficial y subterránea en la parte baja del valle del Río Cachapoal, Chile]

Generalization of results from a pilot study by numerical modeling

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Max Billib

Papers

Arsenic and trace element concentration in surface water and agricultural soils in the southeast of Córdoba province, Argentina

Effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the Cachapoal river, Chile [Efecto de la red de canales de riego en las interacciones de agua superficial y subterránea en la parte baja del valle del Río Cachapoal, Chile]

Generalization of results from a pilot study by numerical modeling

Manejo de Recursos Hídricos Sustentables para Agricultura de Riego en Sudamérica

In-situ remediation of an anthropogenic arsenic contamination