Effect of urban growth on aerosol optical depth-tucson, Arizona, 35 years later

Gouri Prabhakar, Eric A. Betterton, W. Conant, Benjamin M. Herman

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Multiwavelength solar irradiance measurements between 400 a!nd 900nm were made on cloudless days in Tucson, Arizona, over a 30-month period between March 2010 and August 2012. They were analyzed to simultaneously retrieve aerosol optical depth (AOD) and ozone column abundance and to examine their monthly variation. These retrievals were compared with results from a similar study done at the same location between 1975 and 1977. The near tripling of population in Tucson over the past 35 years may have contributed to a 19% increase in the AOD, and the annual-mean ozone column abundance was found to be 11% lower than that inferred during the mid-1970s.

Original languageEnglish (US)
Pages (from-to)1876-1885
Number of pages10
JournalJournal of Applied Meteorology and Climatology
Issue number8
StatePublished - 2014


  • Aerosols
  • Air quality
  • Anthropogenic effects
  • Atmospheric
  • Chemistry
  • Particulates
  • Visibility

ASJC Scopus subject areas

  • Atmospheric Science


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