Results 1 to 10 of about 3,589 (159)
Stochastic Modeling of Explosive Eruptive Events at Galeras Volcano, Colombia [PDF]
Frontiers in Earth Science, 2021 A statistical analysis of explosive eruptive events can give important clues on the behavior of a volcano for both the time- and size-domains, producing crucial information for hazards assessment.
Laura Sandri +4 more
doaj +6 more sources
Warning signals for eruptive events in spreading fires. [PDF]
Proc Natl Acad Sci U S A, 2015 Significance As flames spread through forests, buildings, or other complex environments, they can erupt, unexpectedly, into fast-moving conflagrations. This study presents evidence that characteristic patterns in the behavior of spreading flames may indicate when such eruptions are likely to occur. Our results rely on the detection of
Fox JM, Whitesides GM.
europepmc +6 more sources
Observation of eruptive events with the Siberian Radioheliograph
Solar-Terrestrial Physics, 2018 We describe methods for monitoring eruption activity with the first phase of the multiwave Siberian Radioheliograph (SRH-48). We give examples of the recorded eruptive events: 1) rise of a prominence above the limb observed in the radio map sequence of ...
Fedotova A.Yu. +4 more
doaj +4 more sources
Geometric phase sensing using seismic waves for comprehensive volcano monitoring at Kı̄lauea Hawaii [PDF]
Nature CommunicationsMonitoring volcanic activity requires sensitive tools capable of detecting subtle subsurface changes across eruptive cycles. While seismic methods are widely used to study volcanic unrest, few provide continuous tracking throughout eruptive stages with ...
Bingxu Luo +11 more
doaj +2 more sources
Radio-rich solar eruptive events [PDF]
Geophysical Research Letters, 2000 We report on the analysis of a large number of solar eruptive events that produced radio emission in the dekameter‐hectometric (DH) radio window (1–14 MHz), newly opened by the Wind/WAVES experiment. The distinguishing characteristics of coronal mass ejections (CMEs) associated with the DH type II radio bursts are larger‐than‐average width and speed ...
Nat Gopalswamy +2 more
exaly +2 more sources
Magnetofluid Coupling: Eruptive Events in the Solar Corona
Astrophysical Journal, 2001 By modelling the coronal structures by "slowly" evolving Double-Beltrami two-fluid equilibria (created by the interaction of the magnetic and velocity fields), the conditions for catastrophic transformations of the original state are derived. It is shown that, at the transition, much of the magnetic energy of the original state is converted to the the ...
Ohsaki, Shuichi +3 more
exaly +3 more sources
GLOBAL ENERGETICS OF THIRTY-EIGHT LARGE SOLAR ERUPTIVE EVENTS [PDF]
Astrophysical Journal, 2012 We have evaluated the energetics of 38 solar eruptive events observed by a variety of spacecraft instruments between February 2002 and December 2006, as accurately as the observations allow. The measured energetic components include: (1) the radiated energy in the GOES 1 - 8 A band; (2) the total energy radiated from the soft X-ray (SXR) emitting ...
Angelos Vourlidas +2 more
exaly +4 more sources
Modeling the Energy Release in Solar Eruptive Events
The Astrophysical JournalMagnetic reconnection in a flare current sheet is widely believed to be the main energy release process powering solar flares and coronal mass ejections (CMEs).
Bart van der Holst +5 more
doaj +2 more sources
Sequence of Volcanic Activity of Sakurajima Volcano, Japan, as Revealed by Non-Eruptive Deflation
Frontiers in Earth Science, 2022 Mechanisms that control fluctuation of long-term eruptive activity are not well understood. Since 1955, Sakurajima volcano has experienced repeated Vulcanian eruptions accompanied by deflation.
Masato Iguchi +2 more
doaj +1 more source
Two classes of eruptive events during Solar Minimum [PDF]
Solar Physics, 2021 <p>During Solar Minimum, the Sun is perceived to be quite inactive with barely any spots emerging on the solar surface. Consequently, we observe a drop in the number of highly energetic events such as solar flares and coronal mass ejections (CMEs), which are often associated with active regions on the photosphere.
P. Bhowmik, A. R. Yeates
openaire +4 more sources