Results 21 to 30 of about 1,469 (271)
Geochemistry, Geophysics, Geosystems, 2022 Axial Seamount is a basaltic hot spot volcano with a summit caldera at a depth of ∼1,500 m below sea level, superimposed on the Juan de Fuca spreading ridge, giving it a robust and continuous magma supply.
William W. Chadwick Jr. +5 more
doaj +1 more source
Alaska Volcano Observatory Alert and Forecasting Timeliness: 1989–2017
Frontiers in Earth Science, 2018 The Alaska Volcano Observatory (AVO) monitors volcanoes in Alaska and issues notifications and warnings of volcanic unrest and eruption. We evaluate the timeliness and accuracy of eruption forecasts for 53 eruptions at 20 volcanoes, beginning with Mount ...
Cheryl E. Cameron +5 more
doaj +1 more source
Frontiers in Earth Science, 2018 Bayesian Networks (BNs) are probabilistic graphical models that provide a robust and flexible framework for understanding complex systems. Limited case studies have demonstrated the potential of BNs in modeling multiple data streams for eruption ...
Annemarie Christophersen +6 more
doaj +1 more source
Mathematical modeling of the spread of the coronavirus under strict social restrictions
Mathematical Methods in the Applied Sciences, EarlyView., 2021 We formulate a simple susceptible‐infectious‐recovery (SIR) model to describe the spread of the coronavirus under strict social restrictions. The transmission rate in this model is exponentially decreasing with time. We find a formula for basic reproduction function and estimate the maximum number of daily infected individuals.
Mo'tassem Al‐arydah +3 more
wiley +1 more source
Volcanic Risk Mitigation that Could Have Been Derailed but Wasn’t: Pinatubo, Philippines 1991
Frontiers in Earth Science, 2021 This is the story of a successful risk mitigation effort at Mount Pinatubo in 1991 that could easily have failed. The counterfactuals are the myriad of ways that the effort could have failed but didn’t.
Chris Newhall
doaj +1 more source
Inclusion of ash and SO2 emissions from volcanic eruptions in WRF-Chem: development and some applications [PDF]
Geoscientific Model Development, 2013 We describe a new functionality within the Weather Research and Forecasting (WRF) model with coupled Chemistry (WRF-Chem) that allows simulating emission, transport, dispersion, transformation and sedimentation of pollutants released during volcanic ...
M. Stuefer +6 more
doaj +1 more source
Application of BET_EF at Mount Etna: a retrospective analysis (years 2001-2005)
Annals of Geophysics, 2011 Advances in volcano monitoring and forecasting need a multidisciplinary collaborative framework. In light of this, a Bayesian Event Tree (BET) approach was performed by the application of the BET for Eruption Forecasting (BET_EF) code to analyze the ...
Jacopo Selva +19 more
doaj +1 more source
Frontiers in Earth Science, 2021 In 2017, Mount Agung produced a small (VEI 2) eruption that was preceded by an energetic volcano-tectonic (VT) swarm (>800 earthquakes per day up to M4.9) and two months of declining activity.
John J. Wellik +2 more
doaj +1 more source
Towards forecasting volcanic eruptions using seismic noise [PDF]
Nature Geoscience, 2008 During inter-eruption periods, magma pressurization yields subtle changes of the elastic properties of volcanic edifices. We use the reproducibility properties of the ambient seismic noise recorded on the Piton de la Fournaise volcano to measure relative seismic velocity variations of less than 0.1 % with a temporal resolution of one day.
Brenguier, F. +6 more
openaire +4 more sources
Forecasting volcano eruption activity
, 2022 Volcanic activity monitoring typically are based on gas emissions, seismic activity, thermal anomalies, deformation and surface change. These events can be extracted by globally tracked observation data that span the electromagnetic spectrum. Orbital earth observation is generated by sensors focusing on different wavelength.
openaire +1 more source