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Volcanic emissions monitoring

 
   
 
European Space Agency

Thematic
data products

Emissions

      - NOx emissions
      - NH3 emissions
      - CH4 emissions
      - SO2 emissions
     
 
Ozone layer

      - Total column
      - Assimilated ozone
      - Ozone hole
      - Ozone profiles
     
 
UV radiation

      - UV index
      - UV dose
     
 
Short-lived Climate Forcers

      - NO2
      - CH2O
      - Aerosol index
      - ADRE
     
 
Volcanic plumes

      - SO2 & AAI
     
 
Auxiliary data

      - Cloud info
      - Albedo climatologies
      - SIF
     
 
Contact
page last modified:
01 April 2026
     
Volcano eruptions are important sources of gases, such as sulphur dioxide (SO2), and volcanic ash (aerosols) in the atmosphere. These emissions may have an impact on air traffic: near-real time information on the emissions of volcanic ash and sulphur dioxide will enable better planning of air line routes. If the SO2 concentrations in a given region exceed a limit, a warning is issued of a possible volcano eruption.

NRT volcanic SO2 and ash images from multiple satellite instruments: TROPOMI, OMPS, OMI, GOME-2, IASI and AIRS

go to SACS
Near-real-time images of SO2 and the aerosol index

This NRT data service is part of the Support to Aviation Control Service (SACS), which is hosted by BIRA-IASB, Brussels, Belgium.

 

Archives of volcanic SO2 and ash

Acknowledgement

The GOME-2 data products were generated under the auspices of EUMETSAT's ACSAF project (formerly called O3MSAF).
 

Additional information