World Environmental and Water Resources Congress 2020
Effect of Building Shade on Evapotranspiration in Las Vegas Valley
Publication: World Environmental and Water Resources Congress 2020: Water Resources Planning and Management and Irrigation and Drainage
ABSTRACT
Estimation of urban outdoor water demand is challenging due to variability in the irrigation of heterogeneous vegetated surfaces. Urban shade can cause fluctuations in irrigation water demand due to changes in air temperature subsequently affecting evapotranspiration (ET). This study analyzes the effect of urban shade on landscape ET. The shade is quantified using the sky view factor (SVF) whereas ET data from the Earth Engine Evapotranspiration Flux (EEFLUX) database is used. This analysis is done for May 2018 month that corresponds to hot season. A small region in Las Vegas Valley having varied land cover types is chosen for this analysis. This research reveals that the presence of shade decreases ET, potentially due to the decrease in air temperature and direct solar radiation. This study is insightful in understanding the effect of shade on irrigation water demand due to the presence of buildings.
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ACKNOWLEDGEMENT
This work was funded by University of Nevada Las Vegas under Top Tier Doctoral Graduate Research Assistantship (TTDGRA) program.
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Published In
World Environmental and Water Resources Congress 2020: Water Resources Planning and Management and Irrigation and Drainage
Pages: 57 - 65
Editors: Sajjad Ahmad, Ph.D., and Regan Murray, Ph.D.
ISBN (Online): 978-0-7844-8295-7
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© 2020 American Society of Civil Engineers.
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Published online: May 14, 2020
Published in print: May 14, 2020
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