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Emerick, James F (2003) IMPROVING UPON A GIS-BASED SPATIALLY DISTRIBUTED RAINFALL-RUNOFF MODEL. Master's Thesis, University of Pittsburgh. (Unpublished)

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IMPROVING UPON A GIS-BASED SPATIALLY DISTRIBUTED RAINFALL-RUNOFF MODEL James Emerick, M.S.University of Pittsburgh, 2003 The modeling of small dendritic watersheds has always been a difficult undertaking. The lack of streamflow data and reliable rainfall data, and the inability to model distributed properties have all been reasons for this difficulty. With improvements in computer technology, advancements in radar rainfall measurement, and the innovations in Geographical Information Systems (GIS), it is possible to make improvements to existing modeling techniques. This, along with increasing environmental concerns, has sparked new interests in the development of watershed models. This goal of this research has been to improve upon a Geographical Information System based rainfall-runoff model. A major improvement to the model has been the implementation of spatially distributed incremental rainfall data obtained from gage adjusted radar measurements. The significance of the radar data is the representation of highly defined spatial and temporal distribution in the rainfall measurements. The current model also makes use of distributed properties of the watershed such as elevations, slopes, soil types, land cover, and stream networks. The direct runoff is calculated using a distributed Curve Number Method. The hydrograph is then developed by the use of a distributed map of isochrones. The model was tested for a small watershed where streamflow data was available. The goal is to test and calibrate the model so that it can be used in watersheds where there is no streamflow data available. DESCRIPTORSCurve NumberDEMDistributedGISHydrographIDRISI RunoffSCSWatershed


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Emerick, James Fjfest7@pitt.eduJFEST7
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairQuimpo, Rafael
Committee MemberChiu,
Committee MemberLin,
Committee MemberHung,
Date: 8 May 2003
Date Type: Completion
Defense Date: 28 February 2003
Approval Date: 8 May 2003
Submission Date: 11 March 2003
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Civil and Environmental Engineering
Degree: MSCE - Master of Science in Civil Engineering
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: Excess rainfall; Isochrones; Ramser; Raster file; Direct runoff hydrograph; Spatially distributed
Other ID:, etd-03112003-115321
Date Deposited: 10 Nov 2011 19:32
Last Modified: 15 Nov 2016 13:37


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