Results 141 to 150 of about 26,142 (273)

Modeling the Transport and Dispersion of Volcanic Co‐PDC Ash Clouds Using NAME: An Evaluation of Source Geometry and Mass Eruption Rate

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Pyroclastic density currents (PDCs) are gravity currents that frequently form during explosive volcanic eruptions. These ground‐hugging density currents consist of high‐temperature mixtures of pyroclasts (e.g., ash, pumice), lithics, and gas.
M. Hagenbourger, F. M. Beckett, T. J. Jones, S. L. Engwell   +3 more
wiley   +1 more source

Increased rates of large-magnitude explosive eruptions in Japan in the late Neogene and Quaternary. [PDF]

Geochem Geophys Geosyst, 2016
Mahony SH, Sparks RS, Wallace LM, Engwell SL, Scourse EM, Barnard NH, Kandlbauer J, Brown SK.   +7 more
europepmc   +1 more source

Plume‐Coupled Long‐Range Spotting Drove the Explosive Spread of the 2018 Camp Fire

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Extreme fire spread during the 2018 Camp Fire in northern California was driven by organized long‐range spotting tightly coupled to plume dynamics. Doppler radar and satellite observations reveal distinct regions of ember lofting and downwind fallout within the convective column, forming direct pathways for firebrand transport several (up to ...
N. P. Lareau
wiley   +1 more source

Coral δ13C Reveals Little Ice Age Dimming of Tropical Surface Shortwave Radiation Not Captured by Climate Models

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Tropical low‐cloud feedback is the largest source of uncertainty in climate sensitivity, yet multi‐century records of surface shortwave radiation are scarce. We calibrate Porites coral δ13C against satellite photosynthetically available radiation (PAR) and reconstruct monthly PAR for the northern South China Sea during the Medieval Climate ...
Guangchao Deng, Huimin Guo, Xuefei Chen, Jian‐xin Zhao, Gangjian Wei, Wenfeng Deng   +5 more
wiley   +1 more source

Sulfur as a binding agent of aggregates in explosive eruptions. [PDF]

Bull Volcanol, 2014
Scolamacchia T, Dingwell DB.
europepmc   +1 more source

Three Centuries of ENSO Variability Inferred From Muna, Sulawesi, Indonesia Teak δ18O: Limited Response to Radiative Forcing

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We present an annual resolution oxygen isotope anomaly (Δδ18 ${\Delta }{\delta }^{18}$Oc) record, derived from eight teak (Tectona grandis L.f.) tree ring‐dated δ18 ${\delta }^{18}$Oc series from Muna, Southeast Sulawesi, Indonesia (5.3° ${}^{\circ}$S, 123° ${}^{\circ}$E).
M. N. Evans, S. H. S. Herho, J. C. Wollney, A. N. Carter, M. A. Gbenro, G. R. Tripp, R. D. D’Arrigo, S. Y. Cahyarini   +7 more
wiley   +1 more source

Characterization and Localization of Chemical Explosions and Lightning Flashes by a Flotilla of Stratospheric Balloons

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract On 3 August 2021, a flotilla of four Heliotrope solar hot air balloons was launched from central New Mexico (USA). The balloons, equipped with microbarometers, flew from sunrise to sunset at altitudes between 17 and 22 km. During the flight, eight chemical explosions ranging from 45 to 136 kg TNT equivalent and a thunderstorm occurred in the ...
T. Farges, G. Burgos, S. Albert, D. Bowman, O. Gainville, A. Le Pichon   +5 more
wiley   +1 more source

Open-closed conduit transitions regulate the large magnitude explosive eruptions of Petrazza, PaleoStromboli I (Stromboli, Italy). [PDF]

Sci Rep
Nicotra E, Minniti M, Ridolfi F, Sulpizio R, Tranne CA, Lucchi F.   +5 more
europepmc   +1 more source

Volcanic Ash Affected by Lightning During the Hunga 2022 Eruption

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract The 15 January 2022 eruption of Hunga volcano (Kingdom of Tonga) produced the most lightning ever documented during an explosive eruption to date. This study estimates the mass of erupted tephra that may be structurally or electromagnetically affected by the lightning, based upon lightning peak current, channel length, and ash plume particle ...
Kimberly Genareau, Joali Paredes‐Mariño, Shane J. Cronin, Sebastian S. Harkema, Christopher J. Schultz, Kelley M. Murphy, Aaron R. Naeger   +6 more
wiley   +1 more source

Geological evidence of extensive N-fixation by volcanic lightning during very large explosive eruptions. [PDF]

Proc Natl Acad Sci U S A
Aroskay A, Martin E, Bekki S, Le Pennec JL, Savarino J, Temel A, Manrique N, Aguilar R, Rivera M, Guillou H, Balcone-Boissard H, Phelip O, Szopa S.   +12 more
europepmc   +1 more source