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Freshwater resources in coastal Bangladesh … Freshwater resources in coastal Bangladesh fluctuate with extreme periods of shortage</br>and abundance. Bangladeshis have adapted to these alternating periods but are still</br>plagued with scarce drinking water resources due to pond water pathogens, salinity of</br>groundwater, and arsenic contamination. The success of attempts to correct the</br>problem of unsafe drinking water have varied across the southern Bangladesh as a</br>result of physical and social factors. We use a multicriteria decision analysis (MCDA) to</br>explore the various physical and social factors that influence decisions about freshwater</br>technologies and management schemes in southern Bangladesh.</br></br>MCDA is a holistic, analytical tool for evaluation of alternatives. MCDA is used to</br>support public participation and provide structured, rational, and transparent solutions to</br>complex management problems. To determine the best freshwater technologies and</br>management schemes, we examine four alternatives, including managed aquifer</br>recharge (MAR), pond sand filter (PSF), rain water harvesting (RWH), and tubewells</br>(TW). Criteria are grouped into four categories: environmental, technical, social, and</br>economic. Weighting of social factors will be determined by community surveys, nongovernmental</br>organizations (NGO) opinions, and academic interviews. Data</br>include regional water quality perceptions, perceptions of management/technology</br>success, MAR community surveys, and interviews with NGO partners. Environmental</br>and technical feasibility factors are determined from regional water quality data,</br>geospatial information, land use/land change, and regional stratigraphy.</br></br>Survey data suggest a wide range of criteria based on location and stakeholder</br>perception. MAR and PSF technologies likely have the greatest environmental and</br>technical potential for success but are highly influenced by community dynamics,</br>individual perspective, and NGO involvement. RWH solutions are used less frequently</br>due to quantity limitations but are most successful at reducing the water security threats</br>of contamination by pathogens, arsenic, and salts. This MCDA informs us of community</br>and stakeholder water resource decisions, specifically related to their objectives and</br>values.ly related to their objectives and
values.
Multicriteria Decision Analysis of Freshwater Resource Management in Southwestern Bangladesh +
Nashville +
United States +
Vanderbilt University +
Nashville +
chelsea.n.peters@vanderbilt.edu +
Chelsea +
Vanderbilt University +
Peters +
6628162554 +
Image: +
Image: +
1) Bringing CSDMS models into the classroom +
3) Reproducibility and Open Science +
1) Parflow groundwater modeling +
Tennessee +
United States +
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16:55:05, 31 March 2017 +
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16:55:05, 31 March 2017 +
