Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Open Access Nat. Hazards Earth Syst. Sci. Discuss., 1, 5935–6000, 2013 Natural Hazards www.nat-hazards-earth-syst-sci-discuss.net/1/5935/2013/ and Earth System doi:10.5194/nhessd-1-5935-2013 © Author(s) 2013. CC Attribution 3.0 License. Sciences Discussions This discussion paper is/has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). Please refer to the corresponding final paper in NHESS if available. Support to Aviation Control Service (SACS): an online service for near real-time satellite monitoring of volcanic plumes H. Brenot1, N. Theys1, L. Clarisse2, J. van Geffen3, J. van Gent1, M. Van Roozendael1, R. van der A3, D. Hurtmans2, P.-F. Coheur2, C. Clerbaux2,4, P. Valks5, P. Hedelt5, F. Prata6, O. Rasson1, K. Sievers7, and C. Zehner8 1Belgisch Instituut voor Ruimte-Aeronomie – Institut d’Aéronomie Spatiale de Belgique (BIRA-IASB), Brussels, Belgium 2Spectroscopie de l’Atmosphère, Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles (ULB), Brussels, Belgium 3Koninklijk Nederlands Meteorologisch Instituut (KNMI), De Bilt, the Netherlands 4UPMC Univ. Paris 6; Université de Versailles St.-Quentin; CNRS/INSU, LATMOS-IPSL, Paris, France 5Institut für Methodik der Fernerkundung (IMF), Deutsches Zentrum für Luft und Raumfahrt (DLR), Oberpfaffenhofen, Germany 6Norsk Institutt for Luftforskning (NILU), Kjeller, Norway 7German ALPA, Frankfurt, Germany 5935 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | 8European Space Agency (ESA-ESRIN), Frascati, Italy Received: 23 August 2013 – Accepted: 9 October 2013 – Published: 31 October 2013 Correspondence to: H. Brenot (
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