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Accuracy of a Stormwater Monitoring Program for Urban Landuses
Author(s) -
Madarang Krish,
Kang JooHyon
Publication year - 2013
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143013x13736496908942
Subject(s) - stormwater , surface runoff , environmental science , storm , hydrology (agriculture) , stormwater management , dry season , meteorology , geography , ecology , cartography , geotechnical engineering , biology , engineering
This study examined the accuracy of an urban stormwater monitoring program in estimating the annual discharge load (L T ) and the annual reduction rate by a stormwater treatment device (R T ) for total suspended solids . A calibrated stormwater management model was used to generate the entire stormwater runoff events in one year and was used to estimate L T and R T under different monitoring strategies having limited numbers of runoff events, including random, wet season, antecedent dry days (ADD)‐based, monthly, and seasonally weighted. For random monitoring, 12 storms were required to estimate the values of L T and R T with mean relative errors of 13.98 and 0.24%, respectively. Monthly monitoring had slightly greater mean relative errors compared to random monitoring. Wet season and ADD‐based monitoring under‐ or overestimated both L T and R T . Monitoring with equal numbers of storms from the wet and dry seasons best estimated L T and R T .