Results 31 to 40 of about 10,615 (268)

Using paleomagnetism to determine the heating effect of lava flows on underlying substrates

Volcanica, 2022
The extent to which heat from lava flows passes into underlying and adjacent materials has significant implications for volcanic hazard studies. Here we demonstrate how paleomagnetism can be used as a tool to determine the heating effects of lava flows ...
Geoffrey A Lerner, Sophia W R Tsang, Gillian M Turner   +2 more
doaj   +1 more source

Animating Lava Flows

, 1999
Animating lava flowing down the slopes of a volcano brings several challenges: modeling the mechanical features of lava and how they evolve over time depending on temperature; computing, in a reasonable time, the interactions inside the flow, and between the flow and a complex terrain data-base; and lastly, rendering the visual aspect of the flow.
Stora, Dan, Agliati, Pierre-Olivier, Cani, Marie-Paule, Neyret, Fabrice, Gascuel, Jean-Dominique   +4 more
openaire   +2 more sources

Coupled subdaily and multiweek cycles during the lava dome erupt of Soufriere Hills Volcano, Montserrat [PDF]

, 2013
Observations of volcanoes extruding andesitic lava to produce lava domes often reveal cyclic behaviour. At Soufriere Hills Volcano, Montserrat, cycles with sub-daily and multi-week periods have been recognised on many occasions.
Costa, A., Costa, Antonio, Stewart, R.C, A. Costa, H. Odbert, Stewart, R., Costa, A, Odbert, H., Odbert, H.M, Wadge, G., R. Stewart, Wadge, G, G. Wadge   +12 more
core   +1 more source

Lava flow hazard modeling during the 2021 Fagradalsfjall eruption, Iceland: applications of MrLavaLoba [PDF]

Natural Hazards and Earth System Sciences, 2023
The 6-month-long effusive eruption at the Fagradalsfjall volcano in 2021 is the most visited eruption site in Iceland to date (June 2023), and it needed intense lava flow hazard assessment.
G. B. M. Pedersen, M. A. Pfeffer, S. Barsotti, S. Tarquini, M. de'Michieli Vitturi, M. de'Michieli Vitturi, B. A. Óladóttir, B. A. Óladóttir, R. H. Þrastarson   +8 more
doaj   +1 more source

Insights into post-emplacement lava flow dynamics at Mt. Etna volcano from 2016 to 2021 by synthetic aperture radar and multispectral satellite data

Frontiers in Earth Science, 2023
Post-emplacement dynamics of lava flows is governed by several factors such as poroelastic deformation of the substrate; gravity-induced repacking and rearrangement of the vesicle-bearing fluid lava and other void spaces by superposed flows; lava ...
Lisa Beccaro, Matteo Albano, Cristiano Tolomei, Claudia Spinetti, Giuseppe Pezzo, Mimmo Palano, Claudio Chiarabba   +6 more
doaj   +1 more source

The 2017 Nishinoshima eruption: combined analysis using Himawari-8 and multiple high-resolution satellite images

Earth, Planets and Space, 2019
Nishinoshima volcano suddenly resumed eruptive activity in April 2017 after about 1.5 years of dormancy since its previous activity in 2013–2015. Nishinoshima is an uninhabited isolated island.
Takayuki Kaneko, Fukashi Maeno, Atsushi Yasuda, Minoru Takeo, Kenji Takasaki   +4 more
doaj   +1 more source

Benchmarking computational fluid dynamics models of lava flow simulation for hazard assessment, forecasting, and risk management

Journal of Applied Volcanology, 2017
Numerical simulations of lava flow emplacement are valuable for assessing lava flow hazards, forecasting active flows, designing flow mitigation measures, interpreting past eruptions, and understanding the controls on lava flow behavior.
Hannah R. Dietterich, Einat Lev, Jiangzhi Chen, Jacob A. Richardson, Katharine V. Cashman   +4 more
doaj   +1 more source

An assemblage of lava flow features on Mercury [PDF]

Journal of Geophysical Research: Planets, 2013
AbstractIn contrast to other terrestrial planets, Mercury does not possess a great variety of volcanic features, its history of volcanism instead largely manifest by expansive smooth plains. However, a set of landforms at high northern latitudes on Mercury resembles surface flow features documented on Earth, the Moon, Mars, and Venus. The most striking
Byrne, Paul K., Klimczak, Christian, Williams, David A., Hurwitz, Debra M., Solomon, Sean C., Head, James W., Preusker, Frank, Oberst, Jurgen   +7 more
openaire   +2 more sources

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

Biological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios, Rüdiger Otto, Robert J. Whittaker   +2 more
wiley   +1 more source

Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulates

The Economic Journal, EarlyView., 2018
The negative consequences of long‐term exposure to particulate pollution are well established but a number of studies find no effect of short‐term exposure on health outcomes. The high correlation of industrial pollutants complicates the estimation of the impact of individual pollutants on health.
Timothy J. Halliday, John Lynham, Áureo de Paula   +2 more
wiley   +1 more source