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News and Updates


The 2017 GAW Symposium will take place
from 10 to 13 April.


3 March 2017: The deadline for the abstract submission to the 10th International Carbon Dioxide Conference (ICDC10)  has been extended to 15 March 2017.

26 February 2017: GAW Newsletter, February 2017, was issued.

17 January 2017: Announcement of the 13th School on Atmospheric Aerosol Physics, Measurement, and Sampling. The deadline to apply is 17 March, 2017.

29 November 2016: Photo Contest for the GAW 2017 Calendar. Click here for more info.

23 November 2016: An activity report of the Airborne Dust: from R&D to Operational Forecast was published.

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

Strategic Documents

Draft GAW Implementation Plan for 2016-2023

GAW diagram

Click here to download the GAW Implementation Plan

Integrated Greenhouse Gas Information System (IG3IS) Concept Paper

Download the concept paper as PDF


Recent selected data plots

Click here to go to the plots page


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). GAW recently initiated development of the system that will use observations of greenhouse gases and inverse modelling techniques to support climate mitigations (an Integrated Global Greenhouse Gas Information System).

Aerosols Greenhouse gases Reactive gases Ozone UV radiation Acid deposition
GURME Sand and Dust Storms Applications IG3IS GESAMP



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 the GAW Implementation Plan 2016-2023.


Meetings & Training

Upcoming meetings (2017)
Materials of previous meetings
 GAW and related meeting lists (2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016)

Draft GAW reports (open for comments):






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