TY - JOUR A1 - Weber, Stephan A1 - Kuttler, Wilhelm A1 - Weber, Konradin T1 - Flow characteristics and particle mass and number concentration variability within a busy urban street canyon JF - Atmospheric Environment KW - Luftreinhaltung Y1 - 2006 U6 - https://doi.org/10.1016/j.atmosenv.2006.07.002 VL - 40 IS - 39 SP - 7565 EP - 7578 PB - Elsevier ER - TY - JOUR A1 - Prata, A. J. A1 - Dezitter, F. A1 - Davies, I. A1 - Weber, Konradin A1 - Birnfeld, M. A1 - Moriano, D. A1 - Bernardo, C. A1 - Vogel, A. A1 - Prata, G. S. A1 - Mather, T. A. A1 - Thomas, H. E. A1 - Cammas, J. A1 - Weber, M. T1 - Artificial cloud test confirms volcanic ash detection using infrared spectral imaging JF - Scientific reports N2 - 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 Eyjafjallajökull 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 Eyjafjallajökull 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. KW - Luftreinhaltung Y1 - 2016 U6 - https://doi.org/10.1038/srep25620 VL - 6 PB - Springer Nature ER - TY - JOUR A1 - Weber, Stephan A1 - Weber, Konradin T1 - Coupling of urban street canyon and backyard particle concentrations JF - Meteorologische Zeitschrift KW - Luftreinhaltung Y1 - 2008 U6 - https://doi.org/10.1127/0941-2948/2008/0286 SN - 0941-2948 VL - 17 IS - 3 SP - 251 EP - 261 PB - Schweizerbart ER - TY - JOUR A1 - Carapezza, M. L. A1 - Barberi, F. A1 - Ranaldi, M. A1 - Ricci, T. A1 - Tarchini, L. A1 - Barrancos, José A1 - Fischer, C. A1 - Granieri, D. A1 - Lucchetti, C. A1 - Melian, G. A1 - Perez, N. A1 - Tuccimei, P. A1 - Vogel, A. A1 - Weber, Konradin T1 - Hazardous gas emissions from the flanks of the quiescent Colli Albani volcano (Rome, Italy) JF - Applied Geochemistry KW - Luftreinhaltung Y1 - 2012 UR - https://doi.org/10.1016/j.apgeochem.2012.02.012 U6 - https://doi.org/10.1016/j.apgeochem.2012.02.012 VL - 27 IS - 9 SP - 1767 EP - 1782 PB - Elsevier ER - TY - JOUR A1 - Carapezza, M. L. A1 - Barberi, F. A1 - Ranaldi, M. A1 - Ricci, T. A1 - Tarchini, L. A1 - Barrancos, José A1 - Fischer, C. A1 - Perez, N. A1 - Weber, Konradin A1 - Di Piazza, A. A1 - Gattuso, A. T1 - Diffuse CO2 soil degassing and CO2 and H2S concentrations in air and related hazards at Vulcano Island (Aeolian arc, Italy) JF - Journal of Volcanology and Geothermal Research Y1 - 2011 U6 - https://doi.org/10.1016/j.jvolgeores.2011.06.010 VL - 207 IS - 3-4 SP - 130 EP - 144 PB - Elsevier ER - TY - JOUR A1 - Strucks, Peter A1 - Watermann, Clara A1 - Weber, Konradin A1 - Kaluza, Stefan T1 - Systematic Investigations of Vibrational and Fluid‐Mechanical Stability of Coated Monolithic Catalysts JF - Chemie Ingenieur Technik N2 - Heterogeneous catalysts usually consist of porous, inorganic materials. Especially in the mobile application, e.g., in exhaust gas catalysis as a part of the gas line of an engine, there are loads due to vibrations and high gas velocities. It can be assumed that physical stress will lead to a loss of the catalytically active coating. The present contribution describes experimental setups and methods for a systematic and reproducible investigation of the main influences to the mass loss due to vibrational and fluid‐mechanical stress caused by particle‐free gas flows. KW - Design of experiments KW - Extruded catalysts KW - Mechanical stability KW - Luftreinhaltung Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28930 SN - 1522-2640 VL - 93 IS - 5 SP - 1 EP - 6 PB - Wiley ER - TY - JOUR A1 - Birmili, Wolfram A1 - Rehn, Johanna A1 - Vogel, Andreas A1 - Boehlke, Christoph A1 - Weber, Konradin A1 - Rasch, Fabian T1 - Micro-scale variability of urban particle number and mass concentrations in Leipzig, Germany JF - Meteorologische Zeitschrift KW - Luftreinhaltung Y1 - 2013 U6 - https://doi.org/10.1127/0941-2948/2013/0394 VL - 22 IS - 2 SP - 155 EP - 165 PB - Bornträger ER - TY - JOUR A1 - Henin, S. A1 - Stelmaszczyk, K. A1 - Petrarca, M. A1 - Rohwetter, P. A1 - Hao, Z. Q. A1 - Lüder, J. A1 - Petit, Y. A1 - Vogel, A. A1 - Weber, Konradin A1 - Kasparian, J. A1 - Wöste, L. A1 - Wolf, J.-P. T1 - Laser Filament Induced Water Condensation JF - EPJ Web of Conferences N2 - C Owned by the authors, published by EDP Sciences, 2013 Y1 - 2013 U6 - https://doi.org/10.1051/epjconf/20134112008 VL - 41 PB - edp sciences ER - TY - JOUR A1 - Elíasson, Jónas A1 - Palsson, Asgeir A1 - Weber, Konradin T1 - Monitoring ash clouds for aviation JF - Nature KW - Luftreinhaltung Y1 - 2011 U6 - https://doi.org/10.1038/475455b VL - 475 IS - 7357 PB - Springer Nature ER - TY - RPRT A1 - Adam, Mario A1 - Dreher, Martina A1 - Ebling, Dirk A1 - Knopp, Reinhold A1 - Neef, Matthias A1 - Niess, Robert A1 - Pohl, Tobias A1 - Stahl, Wilhelm A1 - van Rießen, Anne A1 - Waldow, Friederike A1 - Weber, Konradin A1 - Weis, Stephanie T1 - LUST Forschungsprojekt - lebenswerte und umweltgerechte Stadt N2 - LUST (lebenswerte und umweltgerechte Stadt) ist ein interdisziplinäres Projekt der Fachbereiche Architektur, Maschinenbau und Verfahrenstechnik sowie Kultur- und Sozialwissenschaften der Hochschule Düsseldorf. Mittelpunkt des Projektes ist die fachübergreifende Entwicklung neuer Konzepte für eine lebenswerte und umweltgerechte Stadt. Es wurde gefördert vom Land Nordrhein-Westfalen im Rahmen des Programms „FH Struktur“. N2 - LUST (Liveable and environment-friendly Urban SiTe) is an interdisciplinary project of the faculties of Architecture, Mechanical and Process Engineering as well as Social Studies and Cultural Sciences at the University of Applied Sciences Düsseldorf. The four-year (2013 – 2016) project is funded by the Ministry of Innovation, Science and Research of North Rhine–Westphalia. The aim is to develop holistic, new concepts for a liveable and environmentally friendly city in a multidisciplinary manner. KW - Stadtentwicklung KW - lebenswert KW - umweltgerecht KW - substainable urban development KW - environmentally friendly KW - liveable Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-11458 SN - 978-3-941334-43-4 CY - Düsseldorf ER - TY - CHAP A1 - Eliasson, J. A1 - Watson, I.M. A1 - Weber, Konradin T1 - In Situ Observations of Airborne Ash From Manned Aircraft T2 - Volcanic Ash KW - Luftreinhaltung Y1 - 2016 SN - 9780081004050 U6 - https://doi.org/10.1016/B978-0-08-100405-0.00009-4 SP - 89 EP - 98 PB - Elsevier ER - TY - CHAP A1 - Comeron, Adolfo A1 - Kassianov, Evgueni I. A1 - Schäfer, Klaus A1 - Picard, Richard H. A1 - Weber, Konradin T1 - Remote Sensing of Clouds and the Atmosphere XX. Remote Sensing of Clouds and the Atmosphere, Toulouse), 23.-24.09.2015 KW - Luftreinhaltung Y1 - 2015 SN - 978-1-62841-850-7 SN - 0277-786X VL - Proceedings of SPIE ; volume 9640 PB - SPIE CY - Bellingham, Washington, USA ER - TY - JOUR A1 - Moxnes, E. D. A1 - Kristiansen, N. I. A1 - Stohl, A. A1 - Clarisse, L. A1 - Durant, A. A1 - Weber, Konradin A1 - Vogel, A. T1 - Separation of ash and sulfur dioxide during the 2011 Grímsvötn eruption JF - Journal of Geophysical Research: Atmospheres KW - Luftreinhaltung Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50162 SN - 2169-8996 VL - 119 IS - 12 SP - 7477 EP - 7501 PB - American Geophysical Union (AGU) ER -