Journal article
Effect of Spatial Resolution in Modeling Stormwater Runoff for an Urban Block
Journal of hydrologic engineering, v 21(11)
01 Nov 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This study assesses the role of spatial resolution in hydrologic and hydraulic models by means of two models developed at different resolutions for an urban block using the U.S. Environmental Protection Agency's stormwater management model (SWMM). The first is a high-resolution model, in which distinct elements are represented as individual hydrologic response units (HRU). The second is a low-resolution model, in which the entire block is represented as a single HRU. Flow observations during five storms were used to calibrate the models, while a separate set of six storms was used to assess their performance. The high-resolution model was found to systematically underestimate peak flows, whereas the performance of the low-resolution model was found to be dependent on the type of storm. Overall, the two models displayed similar accuracy according to most metrics, thus justifying modeling at high resolution only in those cases where a detailed representation is necessary.
Metrics
Details
- Title
- Effect of Spatial Resolution in Modeling Stormwater Runoff for an Urban Block
- Creators
- Alisha Goldstein - Drexel UniversityRomano Foti - Chestnut Hill CollegeFranco Montalto - US Forest Service
- Publication Details
- Journal of hydrologic engineering, v 21(11)
- Publisher
- Asce-Amer Soc Civil Engineers
- Number of pages
- 5
- Grant note
- New York State Office of the Attorney General
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000386367400002
- Scopus ID
- 2-s2.0-84992455327
- Other Identifier
- 991019168446504721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Civil
- Environmental Sciences
- Water Resources