Results 1 to 10 of about 72,264 (91)

Phases in fine volcanic ash

Scientific Reports, 2023
AbstractVolcanic ash emissions impact atmospheric processes, depositional ecosystems, human health, and global climate. These effects are sensitive to the size and composition of the ash; however, datasets describing the constituent phases over size ranges relevant for atmospheric transport and widely distributed impacts are practically nonexistent ...
Adrian Hornby, Esteban Gazel, Claire Bush, Kyle Dayton, Natalie Mahowald   +4 more
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A multi-sensor approach for volcanic ash cloud retrieval and eruption characterization: the 23 November 2013 Etna lava fountain [PDF]

, 2016
Volcanic activity is observed worldwide with a variety of ground and space-based remote sensing instruments, each with advantages and drawbacks. No single system can give a comprehensive description of eruptive activity, and so, a multi-sensor approach
Carboni, Elisa, Coltelli, Mauro, Corradini, Stefano, Grainger, Roy G., Guerrieri, Lorenzo, Marzano, FRANK SILVIO, Merucci, Luca, Montopoli, Mario, Prestifilippo, Michele, Pugnaghi, Sergio, Ricci, Matteo, Scollo, Simona, Ventress, Lucy J., Vulpiani, Gianfranco   +13 more
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Atmospheric ice nuclei in the Eyjafjallajökull volcanic ash plume [PDF]

, 2011
We have sampled atmospheric ice nuclei (IN) and aerosol in Germany and in Israel during spring 2010. IN were analyzed by the static vapor diffusion chamber FRIDGE, as well as by electron microscopy.
Ardon-Dryer, Karin, Bingemer, Heinz, Bundke, Ulrich, Curtius, Joachim, Ebert, Martin, Haunold, Werner, Herrmann, Thomas, Judt, Anna, Kandler, Konrad, Klein, Holger, Levin, Zev, Müller-Ebert, Dörthe, Nillius, Björn, Weber, A., Weinbruch, Stephan   +14 more
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Influence of trace metal release from volcanic ash on growth of Thalassiosira pseudonana and Emiliania huxleyi [PDF]

, 2012
Recent studies demonstrate that volcanic ash has the potential to increase phytoplankton biomass in the open ocean. However, besides fertilizing trace metals such as Fe, volcanic ash contains a variety of potentially toxic metals such as Cd, Cu, Pb, and ...
Ardelan, M. V., Breitbarth, Eike, Duggen, Svend, Hassellöv, M., Hoffmann, Linn J., Olgun, Nazli, Wängberg, S.-A.   +6 more
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Estimating the frequency of volcanic ash clouds over northern Europe [PDF]

, 2016
Fine ash produced during explosive volcanic eruptions can be dispersed over a vast area, where it poses a threat to aviation, human health and infrastructure. Here, we focus on northern Europe, which lies in the principal transport direction for volcanic
Akaike, Bebbington, Bevilacqua, Blockley, C.B. Connor, Chambers, Connor, Connor, Connor, Costa, Cox, Davies, Davies, De Vleeschouwer, Dugmore, Dugmore, Dugmore, Dugmore, Dzierma, E.J. Watson, Folch, Folch, G.T. Swindles, Gjerløw, Haflidason, Hall, Hall, Hall, Hayward, I.P. Savov, I.T. Lawson, J.A. Wilson, Jensen, Jochum, Jull, Lacasse, Larsen, Larsen, Lawson, Lowe, Mason, Mohn, Newhall, Newton, Pilcher, Pollard, Ponomareva, Pyle, Reilly, Schmidt, Smith, Stevenson, Swindles, Swindles, Thorarinsson, Thordarson, Wastegård, Watson, Wilson, Wulf   +59 more
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Heterogeneous Ice Nucleation by Soufriere Hills Volcanic Ash Immersed in Water Droplets [PDF]

, 2017
Fine particles of ash emitted during volcanic eruptions may sporadically influence cloud properties on a regional or global scale as well as influencing the dynamics of volcanic clouds and the subsequent dispersion of volcanic aerosol and gases.
Atkinson, JD, Malkin, TL, Mangan, TP, Murray, BJ, Neuberg, JW, Neve, L, O'Sullivan, D, Umo, NS, Whale, TF, Wilson, TW   +9 more
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Visualizing volcanic ash forecasts: scientist and stakeholder decisions using different graphical representations and conflicting forecasts [PDF]

, 2017
During volcanic eruptions, Volcanic Ash Advisory Centres issue ash advisories for aviation showing the forecasted outermost extent of the ash cloud. During the 2010 Icelandic volcano Eyjafjallajökull eruption, the UK Met Office produced supplementary ...
Black, Alison, Charlton-Perez, Andrew, Dacre, Helen, Harvey, Natalie, Lickiss, Matthew, McCloy, Rachel, Mulder, Kelsey J.   +6 more
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Revision of the age and stratigraphic relationships of Hinemaiaia Tephra and Whakatane Ash, North Island, New Zealand, using distal occurrences in organic deposits [PDF]

, 1986
The stratigraphic and chronologic relationships of Hinemaiaia Tephra and Whakatane Ash are examined using distal tephras preserved in organic-rich deposits at five sites in eastern and northern North Island, New Zealand. A c.
Lowe, David J.
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Spectroscopic study of volcanic ashes

Journal of Hazardous Materials, 2020
Volcanic ashes particles are subjected to substantial modification during explosive eruptions. The mineralogical and compositional changes have important consequences on the environment and human health. Nevertheless, the relationship between the speciation of iron (Fe) and the mineralogical composition and particle granulometry of the ashes, along ...
Bardelli, Fabrizio, Giuli, Gabriele, Di Benedetto, Francesco, Costagliola, Pilar, Montegrossi, Giordano, Rimondi, Valentina, Romanelli, Maurizio, Pardi, Luca A, Barone, Germana, Mazzoleni, Paolo   +9 more
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Airborne observations of the Eyjafjalla volcano ash cloud over Europe during air space closure in April and May 2010 [PDF]

, 2011
© Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 LicenseAirborne lidar and in-situ measurements of aerosols and trace gases were performed in volcanic ash plumes over Europe between Southern Germany and Iceland with ...
Ansmann, A., Baumann, R., Ebert, M., Forster, C., Freudenthaler, V., Gasteiger, J., Gayet, J. F., Gerz, T., Graf, K., Gro, S., Kandler, K., Krautstrunk, M., Lichtenstern, M., Lieke, K., Mallaun, C., Mannstein, H., Minikin, A., Olafsson, H., Rahm, S., Rautenhaus, M., Reitebuch, O., Rüba, H., Sailer, T., Scheibe, M., Schlager, H., Schumann, U., Scḧauble, D., Simmet, R., Stock, P., Stohl, A., Sturm, K., Tafferner, A., Tesche, Matthias, Voigt, C., Weinbruch, S., Weinzierl, B., Wiegner, M., Ziereis, H.   +37 more
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