14) { $gdate = $gdate2; } if($ghr < 3) { $gdate = "$yester"."12"; } echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; echo "\"Latest"; } ?> Global Sulfur Dioxide Monitoring Home Page "; echo ""; } ?>
NASA Logo, National Aeronautics and Space Administration

Atmospheric Chemistry and Dynamics Laboratory (Code 614)

Global Sulfur Dioxide Monitoring Home Page

MEaSUREs project


Multi-decadal Sulfur Dioxide Climatology from Satellite Instruments.

Product Format Specification Files for OMIAuraSO2, OMIAuraSO2G, and OMIAuraSO2e products.

Example OMIAuraSO2 product file.

Earthquakes, eruptions & emissions from the Global Volcanism Program at the Smithsonian Institution.

Active Volcanism

Each week, Smithsonian's Global Volcanism Program publishes a report of new volcanic activity.

The SO2 data collected by AURA/OMI and Suomi NPP/OMPS for the new activity this week are shown below.

Week of 01 - 07 March 2017

Afar - Erta Ale: OMI  
Columbia - Ruiz: OMI  
Costa Rica - Turrialba: OMI  
Halmahera - Dukono: OMI  
Hawaii - Kilauea: OMI  
Italy - Etna: OMI  
Mexico - Popocatépetl: OMI  
Peru - Sabancaya: OMI  
PNG - Manam & Bagana: OMI  
PNG - Bagana: OMI  
Vanuatu - Ambrym & Yasur: OMI  

Summary of Preliminary Tonnage estimates

Past Weeks Reports


Time series plots for 33 regions of the world. Updated daily.


Long-term volcanic SO2 emissions.





SO2 source emission catalogue (raw data)