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| Abstract Title:
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| Estimating greenroof potential for Glyndon Watershed, an example project from the UMBC's “Water in the Urban Environment” IGERT Program
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| Graduate Student Presenter:
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Olyssa Starry
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| Name of the Author(s) and Affiliation(s):
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Center for Urban Environmental Research and Education,University of Maryland Baltimore County
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Many watershed models of greenroof capacity for stormwater retention assume that all roofs are equally coverable. However, especially in the US, many buildings are not able to support greenroofs for a variety of structural reasons. Using the Glyndon watershed in Baltimore County, Maryland as a case-study, our goal was to develop a decision framework for identifying roofs that are more or less suitable for planting. Part of a network being monitored by the Baltimore Ecosystem study, this 81 ha watershed is characterized by mixed but mostly subruban use. Working with high resolution GIS maps, we used heuristic models as well as manual calculations to identify a subset of roofs for which greenroof surfacing is realistic. Roofs were classified into different categories based on their ability to support extensive or intensive greenroofs, both, or neither. Total roof area for each category in the Glyndon watershed is reported.
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