Goals of the AMIGO project

The overaching goal of the IGAC AMIGO (Analysis of eMIssions usinG Observations) is to organize the international scientific community around syntheses of research using observations-based analysis techniques that aim to better quantify emissions for a variety of trace gases and at different spatio-temporal scales. AMIGO addresses the need for a more accurate knowledge of emissions and is at the crossroads of several parallel IGAC activities involving emissions, atmospheric modeling and analysis on observations. It is of high relevance for policy makers and society.

The syntheses will consider chemically active compounds and greenhouse gases and will evaluate the consistency of their inferred emissions. AMIGO will assess the ability of different analysis techniques to provide consistent quantification of the emissions of multiple species across a range of spatial and temporal scales. Criteria to establish the accuracy of emissions data and their uncertainties will also be defined.

The AMIGO project kicked-off in 2017 and welcomes new participants and ideas. You are invited to contact  the AMIGO co-chairs:

  • Claire Granier (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Ave Arellano (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Jenny Stavrakou (This email address is being protected from spambots. You need JavaScript enabled to view it.).



The traditional ‘bottom-up’ approach for estimating the emissions relies on the extrapolation of geographical and statistical data which are available only on sparse spatial and temporal network. The extrapolation often leads to large uncertainties in emission estimates, mainly caused by the high variability of emission fluxes in space and time. Complementary to this approach, observation-based techniques developed during the last 15 years or so have demonstrated the strong potential for improving the current emission estimates through the use of chemical observations acquired from ground-based networks, aircraft, and especially, spaceborne missions. Although a growing body of studies using a variety of observations and (inverse) analysis methodologies is currently available, there has been little systematic evaluation of the results to assess their consistency, to compare the methodologies and various observations used in each study.

To bridge this gap, AMIGO will organize synthesis assessments (articles, review articles, workshops, session in international conferences, etc.) to evaluate the consistency of different approaches aiming to quantify the emissions of various reactive and greenhouse gases across different scales. Additionally, AMIGO aims to address innovative research activities building on the expertise and ideas of the international scientific community.


Links to international organizations

Links will also be established with several international organizations including the

  1. World Meteorological Organization (WMO)
  2. Global Atmosphere Watch (GAW)
  3. Integrated Global Greenhouse Gas Information System (IG3IS)
  4. Task Force on Hemispheric Transport of Air Pollution (LRTAP)
  5. Global Carbon Project (GCP)
  6. Committee on Earth Observation Satellites Atmospheric Composition Virtual Constellation (CEOS-AC/VC).
  7. Copernicus Atmosphere Monitoring Service (CAMS)

Representatives from some of these organizations (e.g., IG3IS/GCP, CAMS) have participated in the scoping meeting which was held in Toulouse in 2018. Links are established with other IGAC activities (e.g. CCMI, GEIA, etc)