Spatial assessment of conjunctive water harvesting potential in watershed systems

Sekar, I.; Randhir, Timothy O.

doi:10.1016/j.jhydrol.2006.09.024

Cited by 68 publications

(30 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also the use of agricultural land, grassland or absence of vegetation with moderate permeability soils favored large runoff volumes. This was also observed by Sekar and Randhir (2007) in a similar study in which soil types and infiltration capacity directly affect these values. Instead, at the northeast of the study area were identified runoffs of 163 to 280 m 3 due to sheets of rain are smaller and have higher permeability soils such as feozem.…”

Section: Discussionsupporting

confidence: 80%

“…Other factors may be considered in an analysis of SCALL suitability to support forest fire control, such as the interest of the communities surrounding the project site, financing, environmental impact, the relief or the area of the basin, but they can be evaluated on the site selected to build the SCALL also considering soil conditions and the design of the structure (Sekar and Randhir, 2007;Ramakrishnan et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Aptitud Territorial Para Establecer Sistemas De Captación Del Agua De Lluvia Para Combatir Incendios Forestales

Villalobos

Garduño

Mota

et al. 2018

RMCF

View full text Add to dashboard Cite

RESUMENEl control de incendios forestales con helicópteros es una práctica común en el Estado de México que está limitada por la disponibilidad de fuentes de agua para la recarga de las aeronaves. Los sistemas de captación del agua de lluvia (SCALL) se pueden usar para su abastecimiento. La identificación de sitios con aptitud para SCALL en zonas de alta incidencia de incendios es fundamental para mejorar la eficiencia del control aéreo; sin embargo, la selección de los lugares requiere integrar numerosas variables. En el presente estudio se efectuó un análisis de evaluación multicriterio mediante Sistemas de Información Geográfica (SIG) para identificar los sitios con aptitud para SCALL en el área de interés, para lo cual se eligieron cinco variables: velocidad de ráfaga de viento, distancia a los caminos, escurrimiento superficial, evaporación y densidad de incendios. Las variables fueron ponderadas con el apoyo del coordinador de vuelo de las aeronaves y se integraron en un mapa de aptitud por el método de combinación lineal ponderada en Arc Gis 9.2 y Arc View 3.2. Se detectaron de forma rápida y flexible dos sitios con aptitud para establecer SCALL en el área de estudio: uno al norte y otro al sur; y el mapa que los muestra se elaboró a una escala de 1 a 10.Palabras clave: Evaluación multicriterio, control aéreo de incendios forestales, combinación lineal ponderada, densidad de incendios forestales, escurrimiento superficial, velocidad de ráfaga. ABSTRACTAerial fire fighting with a helicopter is a usual practice in Mexico State, the availability of water near to the wildfire area is crucial to refill the bucket and reduce the time between successive drops. Rain Water Harvesting system (RWH) can be used to supply water for the helicopter to combat wildfires. Identification of potential sites for RWH at places with high recurrence of wildfire is essential to improve the efficiency of the practice. However, selection of appropriate sites for RWH requires the integration of several variables. The identification of suitability sites for RWH was achieved using a multicriteria spatial analysis in a Geographical Information System (GIS) environment at the East of Mexico State, for three municipalities Chalco, Ixtapaluca and Tlalmanalco. Five variables were used to identify suitable sites for RHW: wind speed, wildfire density, distance to roads, runoff and evaporation. Each variable was ranked and weighted consulting the expert and a Weighted Linear Combination (WLC) was performed to generate the suitability map using Arc Gis 9.2 and Arc View 3.2. Suitability sites for RWH that met most of the criteria considered are found in North and South of the study area. The conclusion is that the identification of suitability sites to establish RWH system to supply water for the helicopter with the proposed method is a rapid and flexible tool. The output suitability map for the study area showed sites for RHW systems ranked from 1 to 10.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Aptitud Territorial Para Establecer Sistemas De Captación Del Agua De Lluvia Para Combatir Incendios Forestales

Villalobos

Garduño

Mota

et al. 2018

RMCF

View full text Add to dashboard Cite

show abstract

“…Internationally, the terms 'stormwater harvesting', 'rainwater harvesting' and 'water harvesting' have been used interchangeably, as they can convey a similar concept (Che-Ani et al, 2009;Hamdan, 2009;Sekar and Randhir, 2007). In the Australian context, rainwater harvesting is used to describe the collection of rainwater from roofs.…”

Section: Introductionmentioning

confidence: 99%

A GIS based screening tool for locating and ranking of suitable stormwater harvesting sites in urban areas

Inamdar

Cook

Sharma

et al. 2013

Journal of Environmental Management

View full text Add to dashboard Cite

There is a need to re-configure current urban water systems to achieve the objective of sustainable water sensitive cities. Stormwater represents a valuable alternative urban water source to reduce pressure on fresh water resources, and to mitigate the environmental impact of urban stormwater runoff. The selection of suitable urban stormwater harvesting sites is generally based on the judgement of water planners, who are faced with the challenge of considering multiple technical and socio-economic factors that influence the site suitability. To address this challenge, the present study developed a robust GIS based screening methodology for identifying potentially suitable stormwater harvesting sites in urban areas as a first pass for subsequent more detailed investigation. The study initially evaluated suitability based on the match between harvestable runoff and demand through a concept of accumulated catchments. Drainage outlets of these accumulated catchments were considered as potential stormwater harvesting sites. These sites were screened and ranked under three screening parameters, namely demand, ratio of runoff to demand, and weighted demand distance. The methodology described in this paper was successfully applied to a case study in Melbourne, Australia, in collaboration with the local water utility. The methodology was effective in supporting the selection of priority sites for stormwater harvesting schemes, as it provided the basis to identify, shortlist, and rank sites for further detailed investigation. The rapid identification of suitable sites for stormwater harvesting can assist planners in prioritising schemes in areas that will have the most impact on reducing potable water demand.

show abstract

“…Aside of domestic utilization, rainwater can be used to minimize water loss and to augment water supplies in watershed systems (Sekar and Randhir 2007).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Gmelina arborea sawdust–cement-bonded rainwater storage tank

et al. 2007

View full text Add to dashboard Cite

The performance of a mixture of a forest bye product and cement for the production of storage structure for harvested rainwater was assessed. Three mix ratios of Cement: Gmelina arborea sawdust 3.0:1.0 (specimen A), 2.5:1.0 (specimen B) and 2.0:1.0 (specimen C) were considered. Engineering properties and dimensional stability of the different mix-ratios were monitored from prototypes cylindrical pots and test billet specimens. Possible change in quality of stored rainwater, with time was monitored in all the three cases. Water quality parameters monitored include pH, hardness, total suspended solids, alkalinity, acidity and total dissolved CO 2 . The tensile stress obtained were 110, 104, and 95 N/mm 2 , while the compressive strength were 5,000, 3,000, and 2,000 kN for specimens A, B and C respectively. Accelerated aging test showed that sample A were more resistant to deformation, while specimen C were more susceptible to change in structure over time. Similarly, the values of tensile and compressive strength after accelerated aging test increased in the order of specimen A > B > C. Except in specimen C where significant differences in alkalinity and acidity were observed, there were no significant differences in quality of the water stored in the pots after 2 months of storage. The results indicate the suitability of the Gmelina arborea waste as an alternative in constructing water storage structures in rural communities.

show abstract

Spatial assessment of conjunctive water harvesting potential in watershed systems

Cited by 68 publications

References 43 publications

Aptitud Territorial Para Establecer Sistemas De Captación Del Agua De Lluvia Para Combatir Incendios Forestales

Aptitud Territorial Para Establecer Sistemas De Captación Del Agua De Lluvia Para Combatir Incendios Forestales

A GIS based screening tool for locating and ranking of suitable stormwater harvesting sites in urban areas

Assessment of Gmelina arborea sawdust–cement-bonded rainwater storage tank

Contact Info

Product

Resources

About