کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
568913 1452300 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Minimization of cost, sediment load, and sensitivity to climate change in a watershed management application
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزار
پیش نمایش صفحه اول مقاله
Minimization of cost, sediment load, and sensitivity to climate change in a watershed management application
چکیده انگلیسی


• Finds non-dominated sets of BMP configurations for urban stormwater management.
• Efficient multiscale staged optimization using multiobjective differential evolution.
• Pre-optimization of feasible subwatershed BMP configurations for all treatment levels.
• Goals are to minimize cost, sediment load, and sensitivity to increases in precipitation.
• Demonstrated on mixed-use Bartlett Brook watershed in South Burlington, VT, USA.

One challenge of climate change adaptation is to design watershed-based stormwater management plans that meet current total maximum daily load targets and also take into consideration anticipated changes in future precipitation patterns. We present a multi-scale, multiobjective framework for generating a diverse family of stormwater best management practice (BMP) plans for entire watersheds. Each of these alternative BMP configurations are non-dominated by any other identified solution with respect to cost of the implementation of the management plan and sediment loading predicted at the outflow of the watershed; those solutions are then pruned with respect to dominance in sensitivity to predicted changes in precipitation patterns. We first use GIS data to automatically precompute a set of cost-optimal BMP configurations for each subwatershed, over its entire range of possible treatment levels. We then formulate each solution as a real-valued vector of treatment levels for the subwatersheds and employ a staged multiobjective optimization approach using differential evolution to generate sets of non-dominated solutions. Finally, selected solutions are mapped back to the corresponding preoptimized BMP configurations for each subwatershed. The integrated method is demonstrated on the Bartlett Brook mixed-used impaired watershed in South Burlington, VT, and patterns in BMP configurations along the non-dominated front are investigated. Watershed managers and other stakeholders could use this approach to assess the relative trade-offs of alternative stormwater BMP configurations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Modelling & Software - Volume 50, December 2013, Pages 158–168
نویسندگان
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