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Workshop 2013

Ozone Theme Meeting 2010

Ozone Theme Meeting 2009

Ozone Cross Sections

Members of Expert Team

Working Groups

IGACO-O3/UV

Latest update: 2 May 2016

WMO/GAW-IO₃C

IGACO-O3 Activity

Absorption Cross Sections of Ozone (ACSO)

The committee "ACSO" ("Absorption Cross Sections of Ozone") established in spring 2009 is a joint ad hoc commission of the Scientific Advisory Group (SAG) of the Global Atmosphere Watch (GAW) of the World Meteorological Organization (WMO) and the International Ozone Commission IO₃C) of the International Association of Meteorology and Atmospheric Sciences (IAMAS).

The mandate of ACSO includes:

• Review the presently available ozone absorption cross sections. Priority on Huggins band.
• Determine the impact of changing the reference ozone absorption cross sections for all of the commonly used (both ground-based and satellite) atmospheric ozone monitoring instruments.
• Recommend whether a change needs to be be made to the presently used WMO/IO₃C standard ozone absorption cross section data (by Bass and Paur, 1985).

The recommendations are to be discussed with the community of the involved experts. The final meeting of ACSO is planned to take place in June 2013.

The ACSO status report was published in 2015:
http://www.wmo.int/pages/prog/arep/gaw/documents/FINAL_GAW_218.pdf