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| Web URL(s): | http://caplter.asu.edu/docs/symposia/symp2009/Aggarwal_et_al.pdf
Last checked: 04/02/2010
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Aggarwal, R.;
Guhathakurta, S.;
Grossman-Clarke, S.;
Lathey, V. |
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| Author Affiliation: | Aggarwal, Guhathakurta, Grossman-Clarke, and Lathey: School of Sustainability; Guhathakurta: School of Planning, Arizona State University, Tempe, AZ |
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| Title: | How do variations in heat islands in space and time influence household water use?: A longitudinal study of single family residences in Phoenix |
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| Meeting Info.: | Arizona State University, Arizona: January 15, 2009 |
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| Source: | Central Arizona - Phoenix Long Term Ecological Research Eleventh Annual Poster Symposium. January 2009, p. 7. |
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| Publishing Information: | Phoenix, AZ: Central Arizona - Phoenix Long-Term Ecological Research |
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| # of Pages: | 1 |
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| Related Web URL: | http://caplter.asu.edu/docs/symposia/symp2009/Program.pdf# page=7
Last checked: 03/31/2010
Requires: Adobe Acrobat
Access conditions: Document is within a single large file
Notes: Abstract only |
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| Keywords: | TIC Keywords: Evaluations; Methodology; Urban heat island; Water use
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| Geographic Terms: | Phoenix, Arizona |
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| Abstract/Contents: | "Previous studies, using detailed cross-sectional data from 1998, have shown that heat island effects have a significant impact on water use in Phoenix. Although these results are reliable, cross-sectional data cannot capture all the complexities associated with the dynamics of this relation. Using information from repeated observations over different years helps control for unobserved heterogeneity and thus provides more robust estimates. In this study, we used panel data from 1990, 1995, and 2000, at the census tract level in Phoenix to estimate a fixed and random effects water consumption model. A modified version of the fifth-generation PSU/NCAR Mesoscale Meteorological Model (MM5) was used to estimate daily minimum and maximum 2-m air temperatures to capture the spatial variation in urban heat island for the three study years. The dependent variable in the consumption model is the single-family residential water use, averaged at the census tract level. Independent variables include simulated temperatures from the MM5 model, intensity of vegetation cover, housing and parcel attributes (such as, age of housing unit, lot size, and size of swimming pool), and demographic characteristics (such as household size, income and education). Our results show that not only has the heat island expanded spatially over the study period, but the elasticity of its impact on water consumption has also been intensifying. The study also reveals several other insights about how variables such as lot size, pool size, and intensity of vegetation cover either directly, or through their interaction with the heat island, impact water use." |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Aggarwal, R., S. Guhathakurta, S. Grossman-Clarke, and V. Lathey. 2009. How do variations in heat islands in space and time influence household water use?: A longitudinal study of single family residences in Phoenix. Central Arizona - Phoenix Long Term Ecological Research Eleventh Annual Poster Symposium. p. 7. |
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| Web URL(s):
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Last checked: 04/02/2010
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Access conditions: Item is within a limited-access website |
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