Tradeoffs between water conservation and temperature amelioration in Phoenix and Portland

Implications for urban sustainability

Patricia Gober, Ariane Middel, Anthony Brazel, Soe Myint, Heejun Chang, Jiunn Der Duh, Lily House-Peters

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

This study addresses a classic sustainability challenge-the tradeoff between water conservation and temperature amelioration in rapidly growing cities, using Phoenix, Arizona and Portland, Oregon as case studies. An urban energy balance model-LUMPS (Local-Scale Urban Meteorological Parameterization Scheme)-is used to represent the tradeoff between outdoor water use and nighttime cooling during hot, dry summer months. Tradeoffs were characterized under three scenarios of land use change and three climate-change assumptions. Decreasing vegetation density reduced outdoor water use but sacrificed nighttime cooling. Increasing vegetated surfaces accelerated nighttime cooling, but increased outdoor water use by ~20%. Replacing impervious surfaces with buildings achieved similar improvements in nighttime cooling with minimal increases in outdoor water use; it was the most water-efficient cooling strategy. The fact that nighttime cooling rates and outdoor water use were more sensitive to land use scenarios than climate-change simulations suggested that cities can adapt to a warmer climate by manipulating land use.

Original languageEnglish (US)
Pages (from-to)1030-1054
Number of pages25
JournalUrban Geography
Volume33
Issue number7
DOIs
StatePublished - Oct 1 2012

Fingerprint

remediation
water temperature
conservation
water use
sustainability
cooling
water
land use
climate change
scenario
energy balance
land use change
water conservation
parameterization
building
climate
energy
vegetation
summer
simulation

Keywords

  • climate change
  • sustainability
  • temperature amelioration
  • urban heat island
  • water conservation

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Urban Studies

Cite this

Tradeoffs between water conservation and temperature amelioration in Phoenix and Portland : Implications for urban sustainability. / Gober, Patricia; Middel, Ariane; Brazel, Anthony; Myint, Soe; Chang, Heejun; Duh, Jiunn Der; House-Peters, Lily.

In: Urban Geography, Vol. 33, No. 7, 01.10.2012, p. 1030-1054.

Research output: Contribution to journalArticle

Gober, Patricia ; Middel, Ariane ; Brazel, Anthony ; Myint, Soe ; Chang, Heejun ; Duh, Jiunn Der ; House-Peters, Lily. / Tradeoffs between water conservation and temperature amelioration in Phoenix and Portland : Implications for urban sustainability. In: Urban Geography. 2012 ; Vol. 33, No. 7. pp. 1030-1054.
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