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dc.contributor.advisorPearsall, Hamil
dc.creatorRazzaghi Asl, Sina
dc.date.accessioned2024-01-11T21:57:17Z
dc.date.available2024-01-11T21:57:17Z
dc.date.issued2023-12
dc.identifier.urihttp://hdl.handle.net/20.500.12613/9563
dc.description.abstractNature-based solutions (NbS) are becoming increasingly popular in cities around the world; however, such efforts have not been widely incorporated into analyses of urban flood vulnerability nor the total population and property loss of flooding to date, except for a few studies that examined the effectiveness of green infrastructure or only wetlands in flood regulation. The proposed research sought to understand if the existing pattern and composition of NbS can mitigate flood vulnerability and loss of flooding in one of the fastest urbanizing regions in the United States, the Philadelphia Metropolitan Area. This research made key contributions to our understanding of how urban areas can grow without exacerbating flooding and inequity.First, a systematic mapping was conducted to reveal the most common spatial metrics of NbS that mitigate urban flooding in countries around the world. These findings identified important research areas for urban geographers, policymakers, planners, and civil engineers. This review indicated that the effectiveness of NbS varies spatially based on land use/land cover, climatic, and other contextual factors. The results indicated that the location, distribution, and arrangement of NbS may have different impacts on runoff mitigation and flood loss. Also, flood hydrology was the most common topic addressed, and the spatial configuration of NbS, especially connectivity was consistently identified as an important factor in flood regulation. Second, the potential of NbS as a flood loss mitigation tool in one of the fastest-growing and flood-prone counties of Pennsylvania, Montgomery County, using the Generalized Linear Model (GLR) and Geographically Weighted Regression (GWR) techniques was examined. The findings partially contradicted previous research by revealing an unexpected relationship between NbS quantity in floodplains and expected annual loss. Findings also demonstrated that lower-sized and disconnected patches of NbS in floodplains in some dense urban areas effectively reduce total losses from flood events. Third, the spatial coincidence between the density of NbS and flood vulnerability within eight neighboring urbanizing regions situated in Montgomery County was analyzed by using the Local Indicator of Spatial Association (LISA). The results of LISA identified regions of concern characterized by elevated flood vulnerability scores and reduced concentrations of two tree canopy types as well as shrubs and grasses. Taken together, these results emphasize the significance of strategically integrating and improving NbS, especially in areas grappling with distinct flood-related issues. It also emphasized the potential for significant enhancements in flood resilience and mitigation policies thoughtful urban planning and the adoption of NbS.
dc.format.extent160 pages
dc.language.isoeng
dc.publisherTemple University. Libraries
dc.relation.ispartofTheses and Dissertations
dc.rightsIN COPYRIGHT- This Rights Statement can be used for an Item that is in copyright. Using this statement implies that the organization making this Item available has determined that the Item is in copyright and either is the rights-holder, has obtained permission from the rights-holder(s) to make their Work(s) available, or makes the Item available under an exception or limitation to copyright (including Fair Use) that entitles it to make the Item available.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectGeography
dc.subjectEnvironmental justice
dc.subjectGeographic information science and geodesy
dc.subjectFlood hazard
dc.subjectGIS
dc.subjectHazards geography
dc.subjectNature-based solutions
dc.subjectSpatial statistics
dc.titleEXAMINING THE IMPACT OF NATURE-BASED SOLUTIONS ON FLOOD VULNERABILITY AND LOSS IN SMALL URBANIZING REGIONS: A CASE STUDY OF THE PHILADELPHIA METROPOLITAN AREA
dc.typeText
dc.type.genreThesis/Dissertation
dc.contributor.committeememberGutierrez-Velez, Victor H.
dc.contributor.committeememberLi, Xiaojiang
dc.contributor.committeememberMeenar, Mahbubur
dc.description.departmentGeography
dc.relation.doihttp://dx.doi.org/10.34944/dspace/9525
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.description.degreePh.D.
dc.identifier.proqst15517
dc.date.updated2024-01-09T14:06:11Z
refterms.dateFOA2024-01-11T21:58:06Z
dc.identifier.filenameRazzaghiAsl_temple_0225E_15517.pdf


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