Results 41 to 50 of about 778 (148)
Space-Based Imaging Radar Studies of U.S. Volcanoes
Frontiers in Earth Science, 2019 The arrival of space-based imaging radar as a revolutionary land-surface mapping and monitoring tool little more than a quarter century ago enabled a spate of innovative volcano research worldwide.
Daniel Dzurisin +3 more
doaj +1 more source
Journal of Applied Volcanology, 2022 In November 2019, the fourth Volcano Observatory Best Practices workshop was held in Mexico City as a series of talks, discussions, and panels. Volcanologists from around the world offered suggestions for ways to optimize volcano-observatory crisis ...
J. B. Lowenstern +10 more
doaj +1 more source
Explosive Activity on Kīlauea's Lower East Rift Zone Fueled by a Volatile‐Rich, Dacitic Melt
Geochemistry, Geophysics, Geosystems, 2022 Magmas with matrix glass compositions ranging from basalt to dacite erupted from a series of 24 fissures in the first 2 weeks of the 2018 Lower East Rift Zone (LERZ) eruption of Kīlauea Volcano.
Penny E. Wieser +9 more
doaj +1 more source
Predictability of Volcano Eruption: lessons from a basaltic effusive volcano [PDF]
, 2003 Volcano eruption forecast remains a challenging and controversial problem despite the fact that data from volcano monitoring significantly increased in quantity and quality during the last decades.This study uses pattern recognition techniques to quantify the predictability of the 15 Piton de la Fournaise (PdlF) eruptions in the 1988-2001 period using ...
arxiv +1 more source
Experimental density radiography of Wudalianchi volcano with cosmic ray muons [PDF]
arXiv, 2020 Muon radiography is a promising technique to image the internal density structures upto a few hundred meters scale, such as tunnels, pyramids and volcanos, by measuring the flux attenuation of cosmic ray muons after trvaling through these targets. In this study, we conducted an experimantal cosmic ray muon radiography of the Wudalianchi volcano in ...
arxiv
Ordinary isogeny graphs over $\mathbb{F}_p$: the inverse volcano problem [PDF]
arXiv, 2022 We give a detailed presentation of $\ell$-isogeny graphs associated with ordinary elliptic curves defined over $\mathbb{F}_p$. We then focus on the following inverse problem: given an abstract volcano $V$, do there always exist primes $\ell, p \in \mathbb{N}$ such that the ordinary $\ell$-isogeny graph over $\mathbb{F}_p$ contains $V$ as a connected ...
arxiv
Earth and Space Science, 2020 Following the Mw 6.9 Hawaiian earthquake on 4 May 2018, a remarkable quasiperiodic sequence of collapse events began at Halema'uma'u Crater at the summit of Kīlauea Volcano.
Rebecca A. Fildes +3 more
doaj +1 more source
Using Volcano Plots and Regularized-Chi Statistics in Genetic Association Studies [PDF]
Computational Biology and Chemistry, 48: 77-83 (2014), 2013 Labor intensive experiments are typically required to identify the causal disease variants from a list of disease associated variants in the genome. For designing such experiments, candidate variants are ranked by their strength of genetic association with the disease.
arxiv +1 more source
Matrix Approach of Seismic Imaging: Application to the Erebus Volcano, Antarctica [PDF]
Journal of Geophysical Research: Solid Earth, 123 (2018), 2019 Multiple scattering of seismic waves is often seen as a nightmare for conventional migration techniques that generally rely on a ballistic or a single scattering assumption. In heterogeneous areas such as volcanoes, the multiple scattering contribution limits the imaging-depth to one scattering mean free path, the mean distance between two successive ...
arxiv +1 more source
Tate-Shafarevich groups of constant elliptic curves and isogeny volcanos [PDF]
arXiv, 2019 We describe the structure of Tate-Shafarevich groups of a constant elliptic curves over function fields by exploiting the volcano structure of isogeny graphs of elliptic curves over finite fields.
arxiv