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http://dx.doi.org/10.3741/JKWRA.2009.42.2.171

An Experimental Runoff Formula in Building Roof Area for On-site Rainwater Management  

Kim, Young-Jin (National Academy of Agricultural Science)
Han, Moo-Young (Seoul National University)
Kim, Yong-Ha (Seoul National University)
Mun, Jung-Soo (Seoul National University)
Publication Information
Journal of Korea Water Resources Association / v.42, no.2, 2009 , pp. 171-176 More about this Journal
Abstract
This study proposes an experimental formula for cumulative runoff analysis in building roof for on-site rainwater management. We can not find an appropriate method for roof runoff analysis because of its small area scale. A new runoff equation formula for rainfall depth(D) and cumulative runoff volume(V) is developed on roof runoff conditions. Reliability of the formula is verified with field experimental runoff monitoring for two years in two buildings of rainwater management system. This experimental runoff formula can root the cumulative runoff volume from roof area and rainfall depth, then develop reasonable inflow condition for rainwater retention tank design.
Keywords
rainwater management system; building rooftop; roof runoff; cumulative runoff; RSD;
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