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Article Dans Une Revue Natural Hazards and Earth System Sciences Année : 2021

EUNADICS-AV early warning system dedicated to supporting aviation in the case of a crisis from natural airborne hazards and radionuclide clouds

Hugues Brenot
Nicolas Theys
  • Fonction : Auteur
Lieven Clarisse
Jeroen van Gent
  • Fonction : Auteur
Daniel Hurtmans
  • Fonction : Auteur
Sophie Vandenbussche
Nikolaos Papagiannopoulos
Lucia Mona
  • Fonction : Auteur
Timo Virtanen
  • Fonction : Auteur
Andreas Uppstu
  • Fonction : Auteur
Mikhail Sofiev
Luca Bugliaro
Margarita Vázquez-Navarro
  • Fonction : Auteur
Pascal Hedelt
Michelle Maree Parks
  • Fonction : Auteur
Sara Barsotti
  • Fonction : Auteur
Mauro Coltelli
William Moreland
Simona Scollo
Giuseppe Salerno
Delia Arnold-Arias
  • Fonction : Auteur
Marcus Hirtl
  • Fonction : Auteur
Tuomas Peltonen
  • Fonction : Auteur
Juhani Lahtinen
  • Fonction : Auteur
Klaus Sievers
Florian Lipok
  • Fonction : Auteur
Rolf Rüfenacht
Alexander Haefele
Maxime Hervo
Saskia Wagenaar
  • Fonction : Auteur
Wim Som de Cerff
  • Fonction : Auteur
Jos de Laat
  • Fonction : Auteur
Arnoud Apituley
Piet Stammes
  • Fonction : Auteur
Quentin Laffineur
  • Fonction : Auteur
Andy Delcloo
Robertson Lennart
  • Fonction : Auteur
Carl-Herbert Rokitansky
  • Fonction : Auteur
Arturo Vargas
Markus Kerschbaum
  • Fonction : Auteur
Christian Resch
  • Fonction : Auteur
Raimund Zopp
  • Fonction : Auteur
Vincent-Henri Peuch
Michel van Roozendael
  • Fonction : Auteur
Gerhard Wotawa

Résumé

Abstract. The purpose of the EUNADICS-AV (European Natural Airborne Disaster Information and Coordination System for Aviation) prototype early warning system (EWS) is to develop the combined use of harmonised data products from satellite, ground-based and in situ instruments to produce alerts of airborne hazards (volcanic, dust, smoke and radionuclide clouds), satisfying the requirement of aviation air traffic management (ATM) stakeholders (https://cordis.europa.eu/project/id/723986, last access: 5 November 2021). The alert products developed by the EUNADICS-AV EWS, i.e. near-real-time (NRT) observations, email notifications and netCDF (Network Common Data Form) alert data products (called NCAP files), have shown significant interest in using selective detection of natural airborne hazards from polar-orbiting satellites. The combination of several sensors inside a single global system demonstrates the advantage of using a triggered approach to obtain selective detection from observations, which cannot initially discriminate the different aerosol types. Satellite products from hyperspectral ultraviolet–visible (UV–vis) and infrared (IR) sensors (e.g. TROPOMI – TROPOspheric Monitoring Instrument – and IASI – Infrared Atmospheric Sounding Interferometer) and a broadband geostationary imager (Spinning Enhanced Visible and InfraRed Imager; SEVIRI) and retrievals from ground-based networks (e.g. EARLINET – European Aerosol Research Lidar Network, E-PROFILE and the regional network from volcano observatories) are combined by our system to create tailored alert products (e.g. selective ash detection, SO2 column and plume height, dust cloud, and smoke from wildfires). A total of 23 different alert products are implemented, using 1 geostationary and 13 polar-orbiting satellite platforms, 3 external existing service, and 2 EU and 2 regional ground-based networks. This allows for the identification and the tracking of extreme events. The EUNADICS-AV EWS has also shown the need to implement a future relay of radiological data (gamma dose rate and radionuclides concentrations in ground-level air) in the case of a nuclear accident. This highlights the interest of operating early warnings with the use of a homogenised dataset. For the four types of airborne hazard, the EUNADICS-AV EWS has demonstrated its capability to provide NRT alert data products to trigger data assimilation and dispersion modelling providing forecasts and inverse modelling for source term estimate. Not all of our alert data products (NCAP files) are publicly disseminated. Access to our alert products is currently restricted to key users (i.e. Volcanic Ash Advisory Centres, national meteorological services, the World Meteorological Organization, governments, volcano observatories and research collaborators), as these are considered pre-decisional products. On the other hand, thanks to the EUNADICS-AV–SACS (Support to Aviation Control Service) web interface (https://sacs.aeronomie.be, last access: 5 November 2021), the main part of the satellite observations used by the EUNADICS-AV EWS is shown in NRT, with public email notification of volcanic emission and delivery of tailored images and NCAP files. All of the ATM stakeholders (e.g. pilots, airlines and passengers) can access these alert products through this free channel.
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hal-03484548 , version 1 (20-12-2021)

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Hugues Brenot, Nicolas Theys, Lieven Clarisse, Jeroen van Gent, Daniel Hurtmans, et al.. EUNADICS-AV early warning system dedicated to supporting aviation in the case of a crisis from natural airborne hazards and radionuclide clouds. Natural Hazards and Earth System Sciences, 2021, 21 (11), pp.3367-3405. ⟨10.5194/nhess-21-3367-2021⟩. ⟨hal-03484548⟩
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