Aerosols & volcanic ash warning
Impact on the safety of air traffic and on human health
Volcanic eruptions may eject large amounts of ash (aerosols) and trace gases such as sulphur dioxide (SO2) into the atmosphere. These ejecta can have considerable impact on the safety of air traffic and on human health. Ground-based monitoring is carried out at only a limited number of volcanoes: most volcanoes are not monitored on a regular basis, in particular the remotely located volcanoes.
Global observations of SO2 and aerosols derived from satellite measurements in near-real time may therefore provide useful complementary information to assess the possible impact of volcanic eruptions on air traffic control and public safety.
The Support to Aviation Control Service (SACS) focuses on the timely delivery of SO2 data derived from different satellite instruments.
Impact of aerosols on incoming solar radiation