Event Title

Neighborhood socio-ecohydrology along a gradient of urbanization

Location

Eccles Conference Center

Event Website

http://water.usu.edu

Start Date

1-4-2014 5:05 PM

End Date

1-4-2014 5:10 PM

Description

This poster presents the results of a statistical analysis of urban neighborhoods across the Wasatch Range Metropolitan Area (WRMA). The typology is designed to provide a guide to the collection and analysis of coupled social, engineering, and natural science data on urban ecohydrologic systems. The urban socio-ecohydrology typology was constructed using a wide range of data aggregated at the level of Census Block Groups (CBGs). Only CBGs with population densities over 100 persons per square mile were included in our analysis. A full suite of 48 independent variables were obtained for 1,356 of these urban CBGs to represent diverse characteristics of socio-ecohydrologic contexts that previously have been linked to particular patterns of water use, evapotranspiration, groundwater recharge, and surface water flows and fluxes. A principal components exploratory factor analysis was performed on the 48 observed variables. Nine factors were identified that explained 76.4% of the variation. These factors describe the CBG in terms of: housing types; housing types, land use mix, land cover/greenness; lot size; elevation; socio-economic status (SES); population age; and urban open space. The factor scores were used as input into a hierarchical cluster analysis to identify groups of CBGs that had similar scores on the eight factors. Based on an evaluation of changes in cluster distance scores, we identified a stable and coherent set of 18 clusters (or ‘neighborhood types’) that were grouped in 8 broad classes.

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Apr 1st, 5:05 PM Apr 1st, 5:10 PM

Neighborhood socio-ecohydrology along a gradient of urbanization

Eccles Conference Center

This poster presents the results of a statistical analysis of urban neighborhoods across the Wasatch Range Metropolitan Area (WRMA). The typology is designed to provide a guide to the collection and analysis of coupled social, engineering, and natural science data on urban ecohydrologic systems. The urban socio-ecohydrology typology was constructed using a wide range of data aggregated at the level of Census Block Groups (CBGs). Only CBGs with population densities over 100 persons per square mile were included in our analysis. A full suite of 48 independent variables were obtained for 1,356 of these urban CBGs to represent diverse characteristics of socio-ecohydrologic contexts that previously have been linked to particular patterns of water use, evapotranspiration, groundwater recharge, and surface water flows and fluxes. A principal components exploratory factor analysis was performed on the 48 observed variables. Nine factors were identified that explained 76.4% of the variation. These factors describe the CBG in terms of: housing types; housing types, land use mix, land cover/greenness; lot size; elevation; socio-economic status (SES); population age; and urban open space. The factor scores were used as input into a hierarchical cluster analysis to identify groups of CBGs that had similar scores on the eight factors. Based on an evaluation of changes in cluster distance scores, we identified a stable and coherent set of 18 clusters (or ‘neighborhood types’) that were grouped in 8 broad classes.

http://digitalcommons.usu.edu/runoff/2014/2014Posters/24