Aerosol Light Scattering Dependency on Wind Speed in Marine Air

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

Abstract

Aerosol light scattering measurements were carried out at the Global Atmosphere Watch (GAW) research station, Mace Head, on the west coast of Ireland. Analysis of ten years (2001-2010) of the aerosol light scattering coefficient (sigma(scat)) at 550nm reveals a strong seasonal trend with sigma(scat) values during the winter season being approximately three times that of the summer season. The sigma(scat) and the aerosol light backscattering coefficient (sigma(bscat)) for the winter (Low Biological Activity - LBA) and the summer (High Biological Activity - HBA) are dependent on the square of wind speed (U). Scattering properties for the LBA period are approximately twice those of the HBA period. 70% of the observed LBA-HBA scattering difference can be attributed to differences in refractive index alone, resulting from organic-matter enrichment during the HBA period.
Original languageEnglish (Ireland)
Title of host publication19th International Conference on Nucleation Atmospheric Aerosols
Place of PublicationFort Collins, Colorado, USA
Pages563-566
Number of pages4
DOIs
Publication statusPublished - 1 Jan 2013
Event19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 - Fort Collins, CO, United States
Duration: 23 Jun 201328 Jun 2013

Publication series

Name0094-243X

Conference

Conference19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
Country/TerritoryUnited States
CityFort Collins, CO
Period23/06/1328/06/13

Keywords

  • Marine Aerosol
  • Scattering
  • Wind Speed

Authors (Note for portal: view the doc link for the full list of authors)

  • Authors
  • Vaishya, A, Jennings, SG, O'Dowd, CD

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