کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4578271 1630053 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Commonality of rainfall variables influencing suspended solids concentrations in storm runoff from three different urban impervious surfaces
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Commonality of rainfall variables influencing suspended solids concentrations in storm runoff from three different urban impervious surfaces
چکیده انگلیسی

Finding a common set of rainfall variables to explain the concentration of suspended solids in runoff from typical urban impervious surfaces has many applications in stormwater planning. This paper describes a statistical process to identify key explanatory variables to non-coarse particle (suspended solids < 500 μm size) event mean concentrations measured from road, carpark and roof surfaces located in Toowoomba, Australia. The dominant variables for all surfaces were rainfall depth and peak 6-min rainfall intensity. Storm duration, defined as the time period when rainfall intensity exceeds 0.25 mm/h and antecedent storm rainfall were also important predictors, but was less dominant. The regression model fitted to non-coarse particle concentration across all surfaces was proportional to rainfall depth raised to a negative power and peak 6-min rainfall intensity raised to a positive power; the proportionality constant varies by surface type. The form of this common model has a physical basis and is analogous to the modified universal soil loss equation widely used for soil loss estimation for non-urban areas.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 387, Issues 3–4, 15 June 2010, Pages 202–211
نویسندگان
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