Results 11 to 20 of about 72,264 (91)

The ash dispersion over Europe during the Eyjafjallajökull eruption e Comparison of CMAQ simulations to remote sensing and air-borne in-situ observations [PDF]

, 2012
The dispersion of volcanic ash over Europe after the outbreak of the Eyjafjallajökull on Iceland on 14 April 2010 has been simulated with a conventional three-dimensional Eulerian chemistry transport model system, the Community Multiscale Air Quality ...
Aulinger, Armin, Bieser, Johannes, Cuesta, Juan, Geyer, Beate, Langmann, Bärbel, Matthias, Volker, Mattis, Ina, Minikin, Andreas, Mona, Lucia, Quante, Markus, Schumann, Ulrich, Serikov, Ilya, Weinzierl, Bernadett   +12 more
core   +2 more sources

Ages on weathered Plio-Pleistocene tephra sequences, western North Island, New Zealand [PDF]

, 2001
Using the zircon fission-track method, we have obtained five ages on members of two strongly-weathered silicic, Pliocene-Pleistocene tephra sequences, the Kauroa and Hamilton Ash formations, in western North Island, New Zealand.
Briggs, Roger M., Horrocks, Joanna L., Kamp, Peter J.J., Liddell, Ivan J., Lowe, David J., Tippett, J. Mark   +5 more
core   +3 more sources

Surface ocean iron fertilization: the role of subduction zone and hotspot volcanic ash and fluxes into the Pacific Ocean [PDF]

, 2011
Surface ocean iron (Fe) fertilization can affect the marine primary productivity (MPP), thereby impacting on CO2 exchanges at the atmosphere-ocean interface and eventually on climate.
Andreae, Andreas Auer, Baker, Baker, Baker, Bay, Behrenfeld, Boyd, Boyd, Buck, Cather, Censi, Claus Siebe, Coale, Coale, Cooper, Croot, De Baar, Delmelle, Desboeufs, Desboeufs, Dieter Garbe-Schönberg, Duggen, Duggen, Fierstein, Fisher, Frogner, Guieu, Guieu, Hamme, Heiner Dietze, Heller, Hutchins, Jickells, Jickells, Jickells, Johnson, Jones, Journet, Kelts, Kohfeld, Kutterolf, Langmann, Le Bas, Lipman, Liu, Lohmann, Lonsdale, Mahowald, Mahowald, Mahowald, Martin, Martin, Martin, Martin, Millero, Moore, Morel, Morel, Nakagawa, Naughton, Nazlı Olgun, Niels Óskarsson, O'Dowd, Oppenheimer, Parekh, Peter Leslie Croot, Peters, Pierre Delmelle, Pyle, Rea, Rees, Rose, Rose, Sarmiento, Schmincke, Schroth, Scudder, Sedwick, Spirakis, Spokes, Straub, Svend Duggen, Textor, Turner, Turner, Ulrike Schacht, Viereck, Watson, Watson, Watson, Wells, Wiesner, Winckler, Wolfe, Wu, Zhuang, Óskarsson, Óskarsson   +98 more
core   +1 more source

The role of airborne volcanic ash for the surface ocean biogeochemical iron-cycle: a review [PDF]

, 2010
Iron is a key micronutrient for phytoplankton growth in the surface ocean. Yet the significance of volcanism for the marine biogeochemical iron-cycle is poorly constrained.
Croot, Peter, Delmelle, P., Dietze, Heiner, Duggen, Svend, Hoffmann, Linn J., Olgun, Nazli, Teschner, Claudia   +6 more
core   +1 more source

In situ measurements of tropospheric volcanic plumes in Ecuador and Colombia during TC^4 [PDF]

, 2011
A NASA DC-8 research aircraft penetrated tropospheric gas and aerosol plumes sourced from active volcanoes in Ecuador and Colombia during the Tropical Composition, Cloud and Climate Coupling (TC^4) mission in July–August 2007. The likely source volcanoes
Anderson, B. E., Browell, E. V., Carn, S. A., Crounse, J., Dibb, J. E., Diskin, G., Froyd, K. D., Hair, J. W., Krotkov, N. A., Sachse, G., Spencer, K., Vay, S. A., Wennberg, P.   +12 more
core   +4 more sources

The Use of Volcanic Ash From the Eruption of Mount Kelud in East Java for Improving Yield of Sweet Potato Grown on a Sandy Soil [PDF]

, 2015
The purpose of this study was to explore the effect of volcanic ash from the eruption of Mount Kelud and compost on the soil properties and production of sweet potato on a sandy soil.
Melsandi, H. (H), Prijono, S. (S)
core   +4 more sources

Generation of volcanic ash by basaltic volcanism [PDF]

Journal of Geophysical Research: Solid Earth, 2012
The recent eruptions of Eyjafjallajökull and Grimsvötn volcanoes in Iceland demonstrate the importance of a better understanding of processes leading to the formation of volcanic ash, specifically of fine volcanic ash that poses a threat to air traffic.
Tobias Dürig, Ingo Sonder, Bernd Zimanowski, Hermann Beyrichen, Ralf Büttner   +4 more
openaire   +1 more source

Volcanic ash as fertiliser for the surface ocean [PDF]

, 2010
Iron is a key limiting micro-nutrient for marine primary productivity. It can be supplied to the ocean by atmospheric dust deposition. Volcanic ash deposition into the ocean represents another external and so far largely neglected source of iron.
Duggen, Svend, Hort, M., Langmann, B., Zaksek, K.   +3 more
core   +1 more source

Water-soluble materials on volcanic ash from the 1990-94 eruption of the Unzenn volcano [PDF]

, 1995
Water-soluble materials on volcanic ash from the Unzen volcano collected from February, 1991 to July, 1994 were chemically analyzed. They were similar in chemical characteristics to those obtained from other volcanoes.
Akagi, Seishi, Yamamoto, Masahiro
core   +1 more source

Environmental geochemistry of ancient volcanic ashes [PDF]

Journal of Hazardous Materials, 2010
Volcanic ashes from the Puna and surrounding Andean areas in northern Argentina show that sometimes volcanic ash deposits are very well preserved (up to several million years) and can remain a potential hazard for the environment in a similar way as current deposits.
Ruggieri, F., Saavedra, J., Fernandez-Turiel, J. L., Gimeno, D., García-Vallés, M.   +4 more
openaire   +3 more sources