Evapotranspiration from a Green-Roof Storm-Water Control Measure
Publication: Journal of Irrigation and Drainage Engineering
Volume 139, Issue 12
Abstract
The ability to estimate the components of the hydrologic cycle is the key to the proper design and implementation of storm-water control measures (SCMs). Reuse, infiltration, and evapotranspiration (ET) are used by SCMs to reduce runoff. This study quantifies the ET component of a green-roof SCM water budget using weighing lysimeters for 3 years demonstrating its significance. Each of the years (2009–2011) was different climatologically. The measured ET was compared with potential ET calculated by several methods. Further, the measured ET is analyzed for its dependency on climatological factors and previous rain day. The average daily ET was observed to range from 1 to depending on season, temperature, relative humidity, solar radiation, and antecedent moisture condition.
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Acknowledgments
The authors thank the Pennsylvania Department of Environmental Protection Non Point Source and Growing Greener Programs, and the Partners of the VUSP for partial support.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 139 • Issue 12 • December 2013
Pages: 995 - 1003
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 17, 2012
Accepted: Jan 17, 2013
Published online: Jun 6, 2013
Discussion open until: Nov 6, 2013
Published in print: Dec 1, 2013
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