Analysis of rainfall series in the design of urban drainage control systems

Hvitved-Jacobsen, Thorkild; Yousef, Yousef A.

doi:10.1016/0043-1354(88)90045-0

Cited by 23 publications

(5 citation statements)

References 1 publication

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“…Indeed, the cumulative impacts of successive rainfall events in terms of soil moisture, pollutant load, storage levels, remaining capacity of existing stormwater control infrastructures and other variables was found to exacerbate CSO impacts (Hvitved-Jacobsen and Yousef 1988, Mailhot et al 2015, Vaes et al 2001).…”

Section: Historical Rainfall Eventsmentioning

confidence: 99%

Selection of rainfall information as input data for the design of combined sewer overflow solutions

Jean

Duchesne

Pelletier

et al. 2018

Journal of Hydrology

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Combined sewer overflows (CSOs) cause environmental problems and health risks, but poor guidance exists on the use of rainfall data for sizing optimal CSO control solutions. This study first reviews available types of rainfall information as input for CSO modelling and, secondly, assesses the impacts of three rainfall data selection methods (continuous simulation, historical rainstorms selected based on rainfall depth or maximum intensity and IDF-derived storms) on the estimation of CSO volume thresholds to control in order to reach specific seasonal CSO frequency targets. The methodology involves hydrological/hydraulic modelling of an urban catchment in the Province of Québec (Canada). Continuous simulation provides the most accurate volume estimations and shows high sensitivity to the number of simulated *Revised Manuscript with no changes marked Click here to view linked References 2 years. Alternatively, when historical events extracted from rainfall data separated by a minimum inter-event time (MIT) criterion are selected based on their total rainstorm depth, the CSO volumes are underestimated significantly; whereas an analysis based on rainstorm maximum intensities over durations similar to the time of concentration provides more conservative volumes. Finally, synthetic storms constructed from multiple points of an IDF curve tend to underestimate slightly the CSO volumes, but provide acceptable results compared to single point derived storms. It was found that the overflow structures local characteristics had a marginal influence on results obtained from continuous simulation compared to event-based simulation. The use of design rainfall events should thus be restricted to preliminary assessment of CSO volume thresholds, and the final volume estimation for solution sizing should be reviewed under continuous simulation. The innovative contribution lies in the improvement of modelling procedures for solutions design to achieve a maximum CSO frequency, such as specified by many regulating agencies.

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Section: Historical Rainfall Eventsmentioning

confidence: 99%

Selection of rainfall information as input data for the design of combined sewer overflow solutions

Jean

Duchesne

Pelletier

et al. 2018

Journal of Hydrology

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“…The common design methods are, however, rather crude and based on simple empirical rules like the ratio between pond surface area and the impermeable area of the connected catchment. Other design methods are based on suffi cient stormwater detention time to allow treatment to take place (Hvitved-Jacobsen and Yousef 1988). Also, the physical layout of the pond is important and numerous physical design aspects must be included to ensure proper operation of a wet detention pond (U.S. FHWA 1996).…”

Section: Introductionmentioning

confidence: 99%

Performance and Modelling of a Highway Wet Detention Pond Designed for Cold Climate

Vollertsen

Åstebøl²,

Coward³

et al. 2009

Water Quality Research Journal

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A wet detention pond in Norway has been monitored for 12 months. The pond receives runoff from a highway with a traffic load of 42,000 average daily traffic. Hydraulic conditions in terms of inflow, outflow, and pond water level were recorded every minute. Water quality was monitored by volume proportional inlet and outlet samples. During most of the year, excellent pollutant removal was achieved; however, during two snowmelt events the pollutant removal was poor or even negative. The two snowmelt events accounted for one third of the annual water load and for a substantial part of the annual pollutant discharge. The performance of the pond was analyzed using a dynamic model and pollutant removal was simulated by first-order kinetics. Good agreement between measurement and simulation could be achieved only when choosing different first-order rate constants for different parts of the year. However, no relation between the rate constants obtained and the time of year could be identified, and neither did the rate constants for different pollutants correlate. The study indicates that even detailed measurements of pollutant input and output allow only average performance to be simulated and are insufficient for simulating event-based variability in pond performance.

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“…Most research in urban hydrology has the practical focus of predicting watershed response to specific precipitation events (Marsalek and Sztruhar, 1994;Zech et al, 1994;Boyd et al, 1994;Hvitved-Jacobsen and Yousef, 1988). There also has been a growing concern with the effects of urbanization on both point and nonpoint-source contamination (Driver and Troutman, 1989;Estebe et al, 1998;Peters and Kandell, 1999;Walker et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Effects of urbanization on streamflow in the Atlanta area (Georgia, USA): a comparative hydrological approach

Rose

Peters

2001

Hydrological Processes

409

160

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Abstract:For the period from 1958 to 1996, streamflow characteristics of a highly urbanized watershed were compared with less-urbanized and non-urbanized watersheds within a 20 000 km 2 region in the vicinity of Atlanta, Georgia: in the Piedmont and Blue Ridge physiographic provinces of the southeastern USA. Water levels in several wells completed in surficial and crystalline-rock aquifers were also evaluated. Data were analysed for seven US Geological Survey (USGS) stream gauges, 17 National Weather Service rain gauges, and five USGS monitoring wells. Annual runoff coefficients (RCs; runoff as a fractional percentage of precipitation) for the urban stream (Peachtree Creek) were not significantly greater than for the less-urbanized watersheds. The RCs for some streams were similar to others and the similar streams were grouped according to location. The RCs decreased from the higher elevation and higher relief watersheds to the lower elevation and lower relief watersheds: values were 0Ð54 for the two Blue Ridge streams, 0Ð37 for the four middle Piedmont streams (near Atlanta), and 0Ð28 for a southern Piedmont stream. For the 25 largest stormflows, the peak flows for Peachtree Creek were 30% to 100% greater than peak flows for the other streams. The storm recession period for the urban stream was 1-2 days less than that for the other streams and the recession was characterized by a 2-day storm recession constant that was, on average, 40 to 100% greater, i.e. streamflow decreased more rapidly than for the other streams. Baseflow recession constants ranged from 35 to 40% lower for Peachtree Creek than for the other streams; this is attributed to lower evapotranspiration losses, which result in a smaller change in groundwater storage than in the less-urbanized watersheds. Low flow of Peachtree Creek ranged from 25 to 35% less than the other streams, possibly the result of decreased infiltration caused by the more efficient routing of stormwater and the paving of groundwater recharge areas. The timing of daily or monthly groundwater-level fluctuations was similar annually in each well, reflecting the seasonal recharge. Although water-level monitoring only began in the 1980s for the two urban wells, water levels displayed a notable decline compared with non-urban wells since then; this is attributed to decreased groundwater recharge in the urban watersheds due to increased imperviousness and related rapid storm runoff.

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Analysis of rainfall series in the design of urban drainage control systems

Cited by 23 publications

References 1 publication

Selection of rainfall information as input data for the design of combined sewer overflow solutions

Selection of rainfall information as input data for the design of combined sewer overflow solutions

Performance and Modelling of a Highway Wet Detention Pond Designed for Cold Climate

Effects of urbanization on streamflow in the Atlanta area (Georgia, USA): a comparative hydrological approach

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