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Support to Aviation Control Service (Sacs): an Online Service for Near-real-time Satellite Monitoring of Volcanic Plumes : Volume 14, Issue 5 (15/05/2014)

By Brenot, H.

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Book Id: WPLBN0004018385
Format Type: PDF Article :
File Size: Pages 25
Reproduction Date: 2015

Title: Support to Aviation Control Service (Sacs): an Online Service for Near-real-time Satellite Monitoring of Volcanic Plumes : Volume 14, Issue 5 (15/05/2014)  
Author: Brenot, H.
Volume: Vol. 14, Issue 5
Language: English
Subject: Science, Natural, Hazards
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Clarisse, L., Clerbaux, C., Coheur, P., Hedelt, P., Gent, J. V., Der A, R. V.,...Valks, P. (2014). Support to Aviation Control Service (Sacs): an Online Service for Near-real-time Satellite Monitoring of Volcanic Plumes : Volume 14, Issue 5 (15/05/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Belgisch Instituut voor Ruimte-Aeronomie – Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB), Brussels, Belgium. Volcanic eruptions emit plumes of ash and gases into the atmosphere, potentially at very high altitudes. Ash-rich plumes are hazardous for airplanes as ash is very abrasive and easily melts inside their engines. With more than 50 active volcanoes per year and the ever-increasing number of commercial flights, the safety of airplanes is a real concern. Satellite measurements are ideal for monitoring global volcanic activity and, in combination with atmospheric dispersion models, to track and forecast volcanic plumes. Here we present the Support to Aviation Control Service (SACS, http://sacs.aeronomie.be/ecosystem), which is a free online service initiated by the European Space Agency (ESA) for the near-real-time (NRT) satellite monitoring of volcanic plumes of SO2 and ash. It combines data from three ultraviolet (UV)-visible and three infrared (IR) spectrometers. The UV-vis sensors are the Ozone Monitoring Instrument (OMI) and the Global Ozone Monitoring Experiment-2 (GOME-2) on-board the two polar orbiting meteorological satellites (MetOp-A & MetOp-B) operated by the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT). The IR sensors are the Atmospheric InfraRed Sounder (AIRS) and the Infrared Atmospheric Sounding Interferometer (IASI) on-board MetOp-A & MetOp-B. This new multi-sensor warning system of volcanic emissions is based on the selective detection of SO2 and ash. This system is optimised to avoid false alerts while at the same time limiting the number of notifications in case of large plumes. A successful rate with more than 95% of notifications corresponding to true volcanic activity is obtained by the SACS system.

Summary
Support to Aviation Control Service (SACS): an online service for near-real-time satellite monitoring of volcanic plumes

Excerpt
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