Results 51 to 60 of about 14,402 (198)

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

Volcanism on the Pacific Ring of Fire: It's Going to Blow Up! (title provided or enhanced by cataloger) [PDF]

In this activity students familiarize themselves with some basic concepts of volcanology and investigate a portion of the Ring of Fire. They then research the answers to questions on the provided worksheet.
Mel Goodwin
core  

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

Martian volcanism: A review [PDF]

Martian volcanism is reviewed. It is emphasized that lava plains constitute the major type of effusive flow, and can be differentiated by morphologic characteristics.
Carr, Michael H.
core   +1 more source

Quaternary volcanism, tephras, and tephra-derived soils in New Zealand: an introductory review [PDF]

, 2010
This two-part article comprises brief introductions to (1) volcanism and its products in general and to the broad pattern of Quaternary volcanism and tephrostratigraphy in North Island, and (2) the ensuing tephra-derived soils of North Island.
Lowe, David J.
core   +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

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

Climatic impact of volcanic eruptions [PDF]

Studies have attempted to 'isolate' the volcanic signal in noisy temperature data. This assumes that it is possible to isolate a distinct volcanic signal in a record that may have a combination of forcings (ENSO, solar variability, random fluctuations ...
Rampino, Michael R.
core   +1 more source

Ratios of Extinction Coefficient, Mass, and Surface Area to Backscatter Coefficient and Mass to Extinction Coefficient Derived From Balloon‐Borne Stratospheric Aerosol Size Distribution Measurements From 1989–2025

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract In situ measurements of stratospheric aerosol are the only measurements that provide sufficient detail to determine aerosol number, size, surface area, volume/mass, and effective radius; however, these measurements are limited in space and time.
Terry Deshler, Lars E. Kalnajs
wiley   +1 more source

Reconstructing the complex history of a small-volume basaltic volcano (Ngatutura volcanic field, New Zealand) : The role of subsurface processes and implications for diatreme formation : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Earth Science at Massey University, Palmerston North, New Zealand [PDF]

, 2016
Monogenetic volcanism is very common on continents and often occur very close to civilisation. Limiting the ability of volcanologists to predict the location and extent of future eruptions at monogenetic volcanic fields is the lack of knowledge about ...
Van Niekerk, Rickus
core