Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Alexis Hérault"'
Autor:
Annalisa Cappello, Gaetana Ganci, Giuseppe Bilotta, Claudia Corradino, Alexis Hérault, Ciro Del Negro
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
The formation of new craters or cones in active volcanoes can influence the style and frequency of eruptions and may also significantly affect volcanic hazard. Here, we explore how the lava flow hazard changed on Mount Etna in the past 20 years, whil
Externí odkaz:
https://doaj.org/article/1b56f71fe76e4d8dbf32d0984d292ed3
Autor:
Claudia Corradino, Gaetana Ganci, Annalisa Cappello, Giuseppe Bilotta, Alexis Hérault, Ciro Del Negro
Publikováno v:
Remote Sensing, Vol 11, Iss 16, p 1916 (2019)
Accurate mapping of recent lava flows can provide significant insight into the development of flow fields that may aid in predicting future flow behavior. The task is challenging, due to both intrinsic properties of the phenomenon (e.g., lava flow re
Externí odkaz:
https://doaj.org/article/882430f4cf7643b9b56a4ba0d117732a
Autor:
Ciro Del Negro, Giovanni Russo, Annamaria Vicari, Alexis Hérault, Eugenio Rustico, Giuseppe Bilotta, Giovanni Gallo
Publikováno v:
Annals of Geophysics, Vol 54, Iss 5 (2011)
The MAGFLOW lava simulation model is a cellular automaton developed by the Sezione di Catania of the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and it represents the peak of the evolution of cell-based models for lava-flow simulation. The
Externí odkaz:
https://doaj.org/article/0933838b114244ff9ee8ff5bfc2ccb06
Autor:
Giovanni Gallo, Alexis Hérault, Eugenio Rustico, Gaetana Ganci, Annalisa Cappello, Sergio Bonfiglio, Giuseppe Bilotta, Annamaria Vicari, Ciro Del Negro
Publikováno v:
Annals of Geophysics, Vol 54, Iss 5 (2011)
Satellite data, radiative power of hot spots as measured with remote sensing, historical records, on site geological surveys, digital elevation model data, and simulation results together provide a massive data source to investigate the behavior of a
Externí odkaz:
https://doaj.org/article/7bd5047cbcf1457e83095a4ef1e05b18
Publikováno v:
Annals of Geophysics, Vol 54, Iss 5 (2011)
First-order moving least-squares are typically used in conjunction with smoothed particle hydrodynamics in the form of post-processing filters for density fields, to smooth out noise that develops in most applications of smoothed particle hydrodynami
Externí odkaz:
https://doaj.org/article/d7fb36223b294d459ad72e7038a784c1
Publikováno v:
Annals of Geophysics, Vol 54, Iss 5 (2011)
We have developed a robust and scalable multi-GPU (Graphics Processing Unit) version of the cellular-automaton-based MAGFLOW lava simulator. The cellular automaton is partitioned into strips that are assigned to different GPUs, with minimal overlappi
Externí odkaz:
https://doaj.org/article/a6277237532942b08439dc7e43ae3207
Publikováno v:
Annals of Geophysics, Vol 54, Iss 5 (2011)
A smoothed particle hydrodynamics (SPH) method for lava-flow modeling was implemented on a graphical processing unit (GPU) using the compute unified device architecture (CUDA) developed by NVIDIA. This resulted in speed-ups of up to two orders of mag
Externí odkaz:
https://doaj.org/article/7c1191ae43124dc8acd90ca7cf7b4d6f
Autor:
Giuseppe Bilotta, Vito Zago, Veronica Centorrino, Robert A. Dalrymple, Alexis Hérault, Ciro Del Negro, Elie Saikali
Publikováno v:
Journal of Computational Physics
Journal of Computational Physics, 2022, 466, pp.111413. ⟨10.1016/j.jcp.2022.111413⟩
Journal of Computational Physics, 2022, 466, pp.111413. ⟨10.1016/j.jcp.2022.111413⟩
International audience; Implicit integration of the viscous term can significantly improve performance in computational fluid dynamics for highly viscous fluids such as lava. We show improvements over our previous proposal for semi-implicit viscous i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b21d63356fb08f76ec1739d956630c5
https://cnam.hal.science/hal-03891626
https://cnam.hal.science/hal-03891626
Publikováno v:
International Journal of Computational Fluid Dynamics. 34:774-787
One of the main issues with naive Smoothed Particle Hydrodynamics (SPH) implementations is the lack of uniform accuracy in the computational domain. If not mastered correctly, this leads to non-phy...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c74d8d48b1bad17b468d34981f5abc8
https://doi.org/10.1080/10618562.2020.1836357
https://doi.org/10.1080/10618562.2020.1836357
Autor:
Sonia Calvari, Giuseppe Bilotta, Alexis Hérault, Annalisa Cappello, Ciro Del Negro, Gaetana Ganci
Publikováno v:
IGARSS
Satellite remote sensing is playing an increasing role in volcano monitoring, not only at little-known and remote volcanoes where in-situ data are often unavailable, but also at well-monitored volcanoes to complement ground-based measurements. The sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d285f6664688bbad39ac16900d3ded45
https://doi.org/10.1109/igarss47720.2021.9554557
https://doi.org/10.1109/igarss47720.2021.9554557