Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ

M. E. Mavko, K. J. Thome, John A Reagan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The AERONET network has had a wide-ranging impact on the study of atmospheric aerosols, both temporally and geographically. This paper examines the results of measurements from the Aeronet network from a radiometer deployed in Tucson, Arizona during 1999 and 2000. Monthly averages of aerosol optical depth and Ångstrom parameter values are presented. These show that a maximum in aerosol loading occurs in summer months with an average value for optical thickness of 0.11 at 670 nm compared to 0.03 during winter months. The Ångstrom coefficient shows a similar trend with largest values, corresponding to smaller-sized aerosols dominating during the summer months. These results show significant differences from results obtained from similar measurements during the period of 1975-77. In addition to optical depth, aerosol extinction-to-backscatter ratio, or lidar aerosol ratio, is calculated and examined using size distribution data available from Aeronet and Mie scatter computations. This ratio varies from an average value of near 25 in March, April, and May to values near 100 for October, November, and December. Comparison of a subset of these data to those from an independent solar radiometer supports these conclusions.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA.M. Larar, J.A. Shaw, Z. Sun
Pages13-22
Number of pages10
Volume5157
DOIs
StatePublished - 2003
EventOptical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V - San Diego, CA, United States
Duration: Aug 7 2003Aug 8 2003

Other

OtherOptical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V
CountryUnited States
CitySan Diego, CA
Period8/7/038/8/03

Fingerprint

Climatology
climatology
optical thickness
Aerosols
aerosols
extinction
Radiometers
radiometers
summer
Atmospheric aerosols
Optical radar
optical radar
winter
set theory
trends
coefficients

Keywords

  • AERONET
  • Extinction-to-backscatter
  • Solar radiometry

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Mavko, M. E., Thome, K. J., & Reagan, J. A. (2003). Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ. In A. M. Larar, J. A. Shaw, & Z. Sun (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5157, pp. 13-22) https://doi.org/10.1117/12.506578

Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ. / Mavko, M. E.; Thome, K. J.; Reagan, John A.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / A.M. Larar; J.A. Shaw; Z. Sun. Vol. 5157 2003. p. 13-22.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mavko, ME, Thome, KJ & Reagan, JA 2003, Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ. in AM Larar, JA Shaw & Z Sun (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5157, pp. 13-22, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research V, San Diego, CA, United States, 8/7/03. https://doi.org/10.1117/12.506578
Mavko ME, Thome KJ, Reagan JA. Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ. In Larar AM, Shaw JA, Sun Z, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5157. 2003. p. 13-22 https://doi.org/10.1117/12.506578
Mavko, M. E. ; Thome, K. J. ; Reagan, John A. / Compiled aerosol optical depth and extinction-to-backscatter climatology for Tucson, AZ. Proceedings of SPIE - The International Society for Optical Engineering. editor / A.M. Larar ; J.A. Shaw ; Z. Sun. Vol. 5157 2003. pp. 13-22
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