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Data products and their time coverage

The Service gathers SO2 data possibly related to volcano eruptions from measurements by a variety of satellite instruments and provides these in near-real time. In case of an "SO2 event" with exceptional SO2 concentrations, the Service issues a notification by email to users who have subscribed to this service. In addition, a data archive is made for case studies and validation of the notification criteria. Apart from SO2, the Service will also provide an aerosol flag or aerosol index.

Detailed description of the SACS data products is given on this link

The table provides an overview of the data sets of SACS, with the time period covered by the data sets, as well as the data sets planned for use in the (near) future, listed per satellite instrument.

  • SCIAMACHY:
    • SO2 vertical column data (VCD)
       +  cloud cover fraction (CCF)
    • Absorbing aerosol index (AAI)

  • GOME-2:
    • SO2 vertical column data (VCD)
       +  cloud cover fraction (CCF)
    • Absorbing aerosol index (AAI)

  • OMI:
    • SO2 vertical column data (VCD)
       +  cloud cover fraction (CCF)
    • Absorbing aerosol index (AAI)

  • IASI:
    • SO2 brightness temperature difference index data (DBT) and column (VCD)
    • Ash index

  • AIRS:
    • SO2 brightness temperature difference index data (DBT) and column (VCD)
    • Ash index

instrument
    data products
    near-real-time processing
  data availability operational since
SCIAMACHY
    SO2 column
    Aerosol index
 
Jan 2004 - Apr 2012
Jan 2009 - Apr 2012
[start:  02 Aug. 2002]

Sep 2006
Jul 2010
OMI
    SO2 column
    Aerosol index
 
Aug 2004 - Jun 2017
Jul 2009 - Jun 2017
[start:  17 Aug. 2004]
 
Jul 2009
Jul 2009
GOME-2
    SO2 column
    Aerosol index
 
Jan 2007 - Jun 2017
Jun 2010 - Jun 2017
[start:  04 Jan. 2007]
 
Feb 2008
Jun 2010
IASI
    SO2 dbt
    Aerosol/Ash flag
 
Oct 2007 - Jun 2017
Oct 2007 - Jun 2017
[start: 04 Jan. 2007]
 
Aug 2010
Jan 2011
AIRS
    SO2 dbt
    Aerosol/Ash flag
 
Sep 2002 - Jun 2017
Sep 2002 - Jun 2017
[start: 2007]
 
Sep 2010
Mar 2013

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TEMIS Home Page  PROMOTE Home Page  O3M SAF Home Page Last update on 14 Mar 2013