Speaker
N. Theys
(BIRA-IASB)
Description
The Support to Aviation Control Service (SACS; http://sacs.aeronomie.be) is an on-line service displaying in near real-time satellite observations of volcanic ash and SO2. Relying both on UV-visible (OMI, GOME-2, OMPS) and thermal infrared (IASI, AIRS) satellite sounders, it is aimed at aviation authorities, atmospheric scientists and volcanologists. In addition to the near real-time data, the service issues warnings by email and accommodates a large archive of over 10 years of satellite data. After having reviewed SACS’ main features, we focus on more recent developments, in particular the new algorithms using the hyper spectral infrared sounders. SACS now features a unique ash plume warning system based on an innovative algorithm that enables truly selective detection of volcanic particles. We also present possible plans for the future and links with activities within the ESA-funded VAST project.