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News and Updates



21 April 2017: Registration and abstract submission to GGMT-2017 is open at at the meeting web  page

18 April 2017: Materials of the GAW Symposium 2017 are available on the Symspoium web page

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

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

Strategic Documents

GAW Implementation Plan for 2016-2023

GAW diagram

Click here to download the GAW Implementation Plan

Integrated Global Greenhouse Gas Information System (IG3IS) Implementation Plan

Download the draft Implementation Plan 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):

GAW Report No. 232 - Report of the WMO/GAW Expert Meeting on Nitrogen Oxides and International Workshop on the Nitrogen Cycle (York, United Kingdom, 12 - 14 April 2016)





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