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News and Updates

24 January 2016: The 1st Arctic Ozone Bulletin of the 2015/16 season was published.

11 January 2016: The 6th Asia-Pacific GAW Newsletter on Greenhouse Gases was published

24 December 2015: Antarctic Ozone Bulletin no. 5, 2015 was published

24 December 2015: GAW Newsletter (e-zine) no. 3, December 2015 was published

For more news and for signing up to the e-zine, please go to NEWS-ARCHIVE


The Global Atmosphere Watch (GAW) programme of WMO is a partnership involving the Members of WMO, contributing networks and collaborating organizations and bodies which provides reliable scientific data and information on the chemical composition of the atmosphere, its natural and anthropogenic change, and helps to improve the understanding of interactions between the atmosphere, the oceans and the biosphere.

GAW focal areas are aerosols, greenhouse gases, selected reactive gases, ozone, UV radiation and precipitation chemistry (or atmospheric deposition). GAW supports the WMO GAW Urban Research Meteorology and Environment (GURME) project and works together the Group of Experts on Scientific Aspects of Marine Environmental Protection (GESAMP) as well as provides Sand and Dust Storms Warning (SDS-WAS).

Greenhouse gases
Reactive gases
UV radiation
Acid deposition
Sand and Dust Storms

GAW is considered the atmospheric chemistry component of the Global Climate Observing System (GCOS).

Organizational components and structure of the Programme are presented under "Structure".

The GAW Programme operates according to WMO Global Atmosphere Watch (GAW) Strategic Pan: 2008-2015 and its Addendum.


Meetings & Training

Upcoming meetings (2016)
Materials of previous meetings
 GAW and related meeting lists (2009, 2010, 2011, 2012, 2013, 2014, 2015)

Draft GAW reports (open for comments):

GAW 225 - WMO/UNEP Dobson Data Quality Workshop, Hradec Kralove, Czech Republic, 14-18 February 2011 LoA 2016/Ozone/2016 001 Japan




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