Lidar aerosol ratio: Measurements and models

John A Reagan, K. J. Thome, D. M. Powell

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

9 Citations (Scopus)

Abstract

Lidar offers an effective means for monitoring and characterizing global aerosol properties. While relative backscatter maps provided by spaceborne lidar measurements such as those obtained with LITE are valuable for delineating global aerosol structural features, obtaining more quantitative information needed for assessing aerosol radiative effects, namely, retrieval of aerosol extinction and backscatter, requires more information/constraints than what is provided by simple, single-direction lidar soundings. The aerosol extinction-to-backscatter ratio, or lidar aerosol ratio, Sa, is a key parameter which, if known, permits retrieval of aerosol backscatter and extinction profiles from the lidar measurements. This paper assesses Sa determinations obtained from a number of lidar, nephelometer and solar radiometer/sky radiance observations. Results of modeling studies to relate different aerosol models to various ranges of Sa values are also considered. The goal is to establish an Sa climatology that can be used to aid aerosol retrievals from satellite lidar observations such as those to be provided by GLAS and PICASO-CENA.

Original languageEnglish (US)
Title of host publicationInternational Geoscience and Remote Sensing Symposium (IGARSS)
Pages84-87
Number of pages4
Volume1
StatePublished - 2001
Event2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001) - Sydney, NSW, Australia
Duration: Jul 9 2001Jul 13 2001

Other

Other2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001)
CountryAustralia
CitySydney, NSW
Period7/9/017/13/01

Fingerprint

Optical radar
lidar
Aerosols
aerosol
backscatter
extinction
Nephelometers
aerosol property
Climatology
radiance
radiometer
Radiometers
climatology
Satellites
monitoring
Monitoring
modeling

ASJC Scopus subject areas

  • Software
  • Geology

Cite this

Reagan, J. A., Thome, K. J., & Powell, D. M. (2001). Lidar aerosol ratio: Measurements and models. In International Geoscience and Remote Sensing Symposium (IGARSS) (Vol. 1, pp. 84-87)

Lidar aerosol ratio : Measurements and models. / Reagan, John A; Thome, K. J.; Powell, D. M.

International Geoscience and Remote Sensing Symposium (IGARSS). Vol. 1 2001. p. 84-87.

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

Reagan, JA, Thome, KJ & Powell, DM 2001, Lidar aerosol ratio: Measurements and models. in International Geoscience and Remote Sensing Symposium (IGARSS). vol. 1, pp. 84-87, 2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001), Sydney, NSW, Australia, 7/9/01.
Reagan JA, Thome KJ, Powell DM. Lidar aerosol ratio: Measurements and models. In International Geoscience and Remote Sensing Symposium (IGARSS). Vol. 1. 2001. p. 84-87
Reagan, John A ; Thome, K. J. ; Powell, D. M. / Lidar aerosol ratio : Measurements and models. International Geoscience and Remote Sensing Symposium (IGARSS). Vol. 1 2001. pp. 84-87
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