Estimation of sub-catchment area parameters for Storm Water Management Model (SWMM) using geo-informatics. Issue 4 (20th April 2016)

• Record Type: Journal Article
• Authors: Jain, Gaurav V.; Agrawal, Ritesh; Bhanderi, R.J.; Jayaprasad, P.; Patel, J.N.; Agnihotri, P.G.; Samtani, B.M.
• Is Part Of: Geocarto international. Volume 31:Issue 4(2016)
• Page Start: 462
• Page End: 476
• Publication Date: 2016-04-20
• Subjects: SWMM -- urban flooding -- runoff coefficient -- Cartosat-1; Remote sensing -- Periodicals; Geographic information systems -- Periodicals; Geology -- Periodicals; Cartography -- Periodicals; 621.3678
• DOI: 10.1080/10106049.2015.1054443
• Languages: English
• ISSNs: 1010-6049

Abstract

Abstract : This study presents a remote sensing and geographic information systems-based approach for using US EPA's Storm Water Management Model (SWMM) in urban environment. Cartosat-1 PAN + IRS-P6 LISS-IV merged product was used to map land cover in part of Surat city at 1:10, 000 scale. Cartosat-1 stereo pair was used for deriving digital elevation model of the study area. Geo-informatics-based methods were developed for delineation of sub-catchment areas, assignment of sub-catchment outlets and estimation of characteristic width. It was observed that 59% of the developed area in the study region was directly or indirectly connected to the storm water drainage network. Furthermore, dynamic rainfall-runoff simulation on three-day rainfall indicated that the average runoff coefficient on the urbanized sub-catchment areas which were directly connected to the drainage network was 0.92 as against 0.88 on those urbanized sub-catchments without having direct access to storm water drainage.