Authors

M. Hardin; M. Wanielista;M. Chopra

Comments

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Abbreviated Journal Title

Water

Keywords

green roof; stormwater retention; cistern; BMP; model; evapotranspiration; sustainability; LIFE-CYCLE ASSESSMENT; WATER; STORMWATER; RUNOFF; Water Resources

Abstract

Green roofs, which have been used for several decades in many parts of the world, offer a unique and sustainable approach to stormwater management. Within this paper, evidence is presented on water retention for an irrigated green roof system. The presented green roof design results in a water retention volume on site. A first principle mass balance computer model is introduced to assist with the design of these green roof systems which incorporate a cistern to capture and reuse runoff waters for irrigation of the green roof. The model is used to estimate yearly stormwater retention volume for different cistern storage volumes. Additionally, the Blaney and Criddle equation is evaluated for estimation of monthly evapotranspiration rates for irrigated systems and incorporated into the model. This is done so evapotranspiration rates can be calculated for regions where historical data does not exist, allowing the model to be used anywhere historical weather data are available. This model is developed and discussed within this paper as well as compared to experimental results.

Journal Title

Water

Volume

4

Issue/Number

4

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

914

Last Page

931

WOS Identifier

WOS:000312606400011

ISSN

2073-4441

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