@article{PrataDezitterDaviesetal.2016, author = {Prata, A. J. and Dezitter, F. and Davies, I. and Weber, Konradin and Birnfeld, M. and Moriano, D. and Bernardo, C. and Vogel, A. and Prata, G. S. and Mather, T. A. and Thomas, H. E. and Cammas, J. and Weber, M.}, title = {Artificial cloud test confirms volcanic ash detection using infrared spectral imaging}, series = {Scientific reports}, volume = {6}, journal = {Scientific reports}, publisher = {Springer Nature}, doi = {10.1038/srep25620}, year = {2016}, abstract = {Airborne volcanic ash particles are a known hazard to aviation. Currently, there are no means available to detect ash in flight as the particles are too fine (radii < 30 μm) for on-board radar detection and, even in good visibility, ash clouds are difficult or impossible to detect by eye. The economic cost and societal impact of the April/May 2010 Icelandic eruption of Eyjafjallaj{\"o}kull generated renewed interest in finding ways to identify airborne volcanic ash in order to keep airspace open and avoid aircraft groundings. We have designed and built a bi-spectral, fast-sampling, uncooled infrared camera device (AVOID) to examine its ability to detect volcanic ash from commercial jet aircraft at distances of more than 50 km ahead. Here we report results of an experiment conducted over the Atlantic Ocean, off the coast of France, confirming the ability of the device to detect and quantify volcanic ash in an artificial ash cloud created by dispersal of volcanic ash from a second aircraft. A third aircraft was used to measure the ash in situ using optical particle counters. The cloud was composed of very fine ash (mean radii ~10 μm) collected from Iceland immediately after the Eyjafjallaj{\"o}kull eruption and had a vertical thickness of ~200 m, a width of ~2 km and length of between 2 and 12 km. Concentrations of ~200 μg m(-3) were identified by AVOID at distances from ~20 km to ~70 km. For the first time, airborne remote detection of volcanic ash has been successfully demonstrated from a long-range flight test aircraft.}, language = {en} } @article{CarapezzaBarberiRanaldietal.2012, author = {Carapezza, M. L. and Barberi, F. and Ranaldi, M. and Ricci, T. and Tarchini, L. and Barrancos, J. and Fischer, C. and Granieri, D. and Lucchetti, C. and Melian, G. and Perez, N. and Tuccimei, P. and Vogel, A. and Weber, Konradin}, title = {Hazardous gas emissions from the flanks of the quiescent Colli Albani volcano (Rome, Italy)}, series = {Applied Geochemistry}, volume = {27}, journal = {Applied Geochemistry}, number = {9}, publisher = {Elsevier}, doi = {10.1016/j.apgeochem.2012.02.012}, pages = {1767 -- 1782}, year = {2012}, language = {en} } @article{CarapezzaBarberiRanaldietal.2011, author = {Carapezza, M. L. and Barberi, F. and Ranaldi, M. and Ricci, T. and Tarchini, L. and Barrancos, J. and Fischer, C. and Perez, N. and Weber, Konradin and Di Piazza, A. and Gattuso, A.}, title = {Diffuse CO2 soil degassing and CO2 and H2S concentrations in air and related hazards at Vulcano Island (Aeolian arc, Italy)}, series = {Journal of Volcanology and Geothermal Research}, volume = {207}, journal = {Journal of Volcanology and Geothermal Research}, number = {3-4}, publisher = {Elsevier}, doi = {10.1016/j.jvolgeores.2011.06.010}, pages = {130 -- 144}, year = {2011}, language = {en} } @article{HeninStelmaszczykPetrarcaetal.2013, author = {Henin, S. and Stelmaszczyk, K. and Petrarca, M. and Rohwetter, P. and Hao, Z. Q. and L{\"u}der, J. and Petit, Y. and Vogel, A. and Weber, Konradin and Kasparian, J. and W{\"o}ste, L. and Wolf, J.-P.}, title = {Laser Filament Induced Water Condensation}, series = {EPJ Web of Conferences}, volume = {41}, journal = {EPJ Web of Conferences}, publisher = {edp sciences}, doi = {10.1051/epjconf/20134112008}, year = {2013}, abstract = {C Owned by the authors, published by EDP Sciences, 2013}, language = {en} } @article{JolyPetrarcaVogeletal.2013, author = {Joly, P. and Petrarca, M. and Vogel, A. and Pohl, T. and Nagy, T. and Jusforgues, Q. and Simon, P. and Kasparian, J. and Weber, K. and Wolf, J.-P.}, title = {Laser-induced condensation by ultrashort laser pulses at 248 nm}, series = {Applied Physics Letters}, volume = {102}, journal = {Applied Physics Letters}, number = {9}, publisher = {AIP}, doi = {10.1063/1.4794416}, year = {2013}, language = {en} }