Provider: ingentaconnect
Database: ingentaconnect
Content: application/x-research-info-systems
TY - ABST
AU - Kim, Sangdan
AU - Han, Suhee
TI - Urban Stormwater Capture Curve Using Three-Parameter Mixed Exponential Probability Density Function and NRCS Runoff Curve Number Method
JO - Water Environment Research
PY - 2010-01-01T00:00:00///
VL - 82
IS - 1
SP - 43
EP - 50
KW - Natural Resources Conservation Service runoff curve number
KW - non-point-source management
KW - urban stormwater-capture curve
N2 - Most related literature regarding designing urban non-point-source management systems assumes that precipitation event-depths follow the 1-parameter exponential probability density function to reduce the mathematical complexity of the derivation process. However, the method of expressing
the rainfall is the most important factor for analyzing stormwater; thus, a better mathematical expression, which represents the probability distribution of rainfall depths, is suggested in this study. Also, the rainfall‐runoff calculation procedure required for deriving a stormwater-capture
curve is altered by the U.S. Natural Resources Conservation Service (Washington, D.C.) (NRCS) runoff curve number method to consider the nonlinearity of the rainfall‐runoff relation and, at the same time, obtain a more verifiable and representative curve for design when applying it
to urban drainage areas with complicated land-use characteristics, such as occurs in Korea. The result of developing the stormwater-capture curve from the rainfall data in Busan, Korea, confirms that the methodology suggested in this study provides a better solution than the pre-existing one.
UR - http://www.ingentaconnect.com/content/wef/wer/2010/00000082/00000001/art00005
M3 - doi:10.2175/106143009X447939
UR - http://dx.doi.org/10.2175/106143009X447939
ER -