Measuring the Impact of Green Infrastructure in Philadelphia with Remote Sensing

Authors: Matthew Marcus*,
Topics: Remote Sensing, Urban Geography, Water Resources and Hydrology
Keywords: Stormwater, Sustainability, Urban Heat Island Effect, Green Infrastructure, Remote Sensing, GIS
Session Type: Paper
Day: 4/11/2018
Start / End Time: 1:20 PM / 3:00 PM
Room: Lafayette, Marriott, River Tower Elevators, 41st Floor
Presentation File: No File Uploaded


The city of Philadelphia has been engaged in a project called Green City Clean Waters since June of 2011, which aims to reduce storm water flow into combined sewers via green infrastructure (GI). Such projects include constructing urban wetlands, green roofs, and pervious pavements. This study aims to identify these GI projects throughout the city using remote sensing in order to estimate the area of surfaces converted from pervious to impervious over the time period of 2004 to 2015. In addition, the study aims to quantify the effects that GI has on the urban heat island (UHI) effect. It is hypothesized that a significant reduction of the UHI will be observed in the vicinity of GI installations. The study will incorporate data obtained from the NAIP and from Landsat. An image classification on the data will be used to distinguish GI from its surroundings based on a Philadelphia Water Department map of all GI in the city. This final product will demonstrate the percent change in green areas, the expected water diversion that results from this, and the percent change of observed heat island affect across the city.

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