Results 31 to 40 of about 72,264 (91)

Experimental simulations of the weathering of volcanic ash : a case study to better understand short- and long-term impacts of ash-leachable elements on the environment : a thesis presented in the partial fulfilment of the requirements for a degree of Master of Science in Earth Science at Massey University, Palmerston North, New Zealand [PDF]

, 2017
The aim of this project is the development and testing of a new methodology for the investigation of the short- to long-term leaching behaviour of volcanic ash.
Greig, Alexander Robert
core  

Electrical charging of ash in Icelandic volcanic plumes

, 2014
The existence of volcanic lightning and alteration of the atmospheric potential gradient in the vicinity of near-vent volcanic plumes provides strong evidence for the charging of volcanic ash.
Aplin, Karen L, Houghton, Isobel M P, Nicoll, Keri A   +2 more
core  

Ash plume properties retrieved from infrared images: a forward and inverse modeling approach

, 2014
We present a coupled fluid-dynamic and electromagnetic model for volcanic ash plumes. In a forward approach, the model is able to simulate the plume dynamics from prescribed input flow conditions and generate the corresponding synthetic thermal infrared (
Cerminara, Matteo, Harris, Andrew J. L., Ongaro, Tomaso Esposti, Valade, Sébastien   +3 more
core   +3 more sources

Four-dimensional distribution of the 2010 Eyjafjallajökull volcanic cloud over Europe observed by EARLINET [PDF]

, 2012
© Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License.The eruption of the Icelandic volcano Eyjafjallaj ökull in April-May 2010 represents a "natural experiment" to study the impact of volcanic emissions on a ...
Adam, M., Alados Arboledas, L., Amodeo, A., Ansmann, A., Apituley, A., Balis, D., Boselli, A., Bravo-Aranda, J. A., Chaikovsky, A., Comeron, A., Cuesta, J., D'Amico, G., De Tomasi, F., Freudenthaler, V., Gausa, M., Giannakaki, E., Giehl, H., Giunta, A., Grigorov, I., Groß, S., Haeffelin, M., Hiebsch, A., Iarlori, M., Lange, D., Linné, H., Madonna, F., Mamouri, R. E., Mattis, I., McAuliffe, M. A. P., Mitev, V., Molero, F., Mona, L., Navas-Guzman, F., Nicolae, D., Papayannis, A., Pappalardo, G., Perrone, M. R., Pietras, C., Pietruczuk, A., Pisani, G., Preißler, J., Pujadas, M., Rizi, V., Ruth, A. A., Schmidt, J., Schnell, F., Seifert, P., Serikov, I., Sicard, M., Simeonov, V., Spinelli, N., Stebel, K., Tesche, Matthias, Trickl, T., Wagner, F., Wandinger, U., Wang, X., Wiegner, M., Wilson, K. M.   +58 more
core   +8 more sources

Insulation effects of Icelandic dust and volcanic ash on snow and ice [PDF]

, 2016
In the Arctic region, Iceland is an important source of dust due to ash production from volcanic eruptions. In addition, dust is resuspended from the surface into the atmosphere as several dust storms occur each year.
A Folch, B Brock, Finnur Pálsson, Gerrit De Leeuw, H Björnsson, J Peltoniemi, M Bursik, Monika Dragosics, MP Kirkbride, O Arnalds, O Arnalds, O Meinander, O Meinander, Outi Meinander, P Dagsson-Waldhauserova, Pavla Dagsson-Waldhauserová, SJ Doherty, SR Gislason, T Thordarson, TH Painter, Throstur Thorsteinsson, Tinna Jónsdóttír, Tobias Dürig   +22 more
core   +1 more source

A review of late Quaternary silicic and some other tephra formations from New Zealand: their stratigraphy, nomenclature, distribution, volume, and age. [PDF]

, 1990
The stratigraphic relationships and distribution of 36 named late Quaternary (≤c. 50 000 yr B P.) silicic tephra formations, erupted from 4 volcanic centres—Okataina, Taupo, Maroa, and Tuhua (Mayor Island)—are presented.
Froggatt, Paul C., Lowe, David J.
core   +2 more sources

Investigation of chlorine radical chemistry in the Eyjafjallajkull volcanic plume using observed depletions in non-methane hydrocarbons [PDF]

, 2011
As part of the effort to understand volcanic plume composition and chemistry during the eruption of the Icelandic volcano Eyjafjallajkull, the CARIBIC atmospheric observatory was deployed for three special science flights aboard a Lufthansa passenger ...
Adam Wisher, Aiuppa, Angela K. Baker, Armin Rauthe-Schöch, Atkinson, Atkinson, Baker, Bobrowski, Bobrowski, Brenninkmeijer, Carl A. M. Brenninkmeijer, David E. Oram, Ehhalt, Flentje, Gasteiger, Gerlach, Gislason, Heue, Jobson, Jobson, Jobson, Lee, Peter F. J. van Velthoven, Platt, Pszenny, Roberts, Rose, Schuck, Schumann, Sokolov, Spivakovsky, Stohl, Tanja J. Schuck, von Glasow, von Glasow, Worton   +35 more
core   +1 more source

Vegetational response to tephra deposition and land-use change in Iceland: a modern analogue and multiple working hypothesis approach to tephropalynology [PDF]

, 2004
Evidence is provided from the joint application of tephrochronology and palynology in two Icelandic locations — the island of Papey off the east coast and Seljaland in the south.
Blackford, J. J., Dugmore, A. J., Edwards, K. J.   +2 more
core   +1 more source

Evidence of volcanic ash at a K-T boundary section: Ocean drilling program hole 690 C, Maud Rise, Weddell Sea off East Antarctica [PDF]

Rare vitric volcanogenic ash but more abundant clay minerals considered volcanogenic in origin are associated with an expanded and essentially complete K-T boundary sequence from Ocean Drilling Project (ODP) Hole 690 C on Maud Rise in the Weddell Sea off
Barker, P. F., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Futterer, D. K., Hamilton, N., Kennett, James P., Oconnell, S., Pospichal, J., Wise, S. W.   +9 more
core   +1 more source

Sedimentary inputs to the Nankai subduction zone: The importance of dispersed ash [PDF]

, 2018
We examine the importance of dispersed volcanic ash as a critical component of the aluminosilicate sediment entering the Nankai Trough, located south of Japan’s island of Honshu, via the subducting Philippine Sea plate.
Kutterolf, Steffen, Murray, Richard W., Schindlbeck, Julie Christin, Scudder, Rachel P., Underwood, Michael B., Wang, Kuo-Lung   +5 more
core   +1 more source