Results 31 to 40 of about 73 (72)

On the effect of the volcanic eruptions of Mount Agung and El Chichón on the temperature of the stratosphere

Geofísica Internacional, 1984
Durante el verano y el otoño de 1982, y también durante el verano y el otoño de 1963, la temperatura a 30 mbar subió más de tres desviaciones estándar sobre el promedio de 18 años en latitudes tropicales. Estos calentamientos se atribuyen a los aerosoles
K. Labitzke, B. Naujokat
doaj   +1 more source

Monitoring volcanoes in Mexico

Volcanica, 2021
Mexico has at least 46 volcanic centers (including monogenetic volcanic fields) that are considered active or potentially active. Due to the federal governance of the country, the Centro Nacional de Prevención de Desastres (CENAPRED) is the entity ...
Ramón Espinasa-Pereña, Raúl Arámbula, Silvia Ramos, Katrin Sieron, Lucia Capra, Ariadna Hernández-Oscoy, Miguel Alatorre, Francisco Córdoba Montiel   +7 more
doaj   +1 more source

Post‐Eruption Tropical Cyclone Genesis Potential Change Over the Western North Pacific Modulated by Initial Oceanic Conditions

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract How tropical cyclone (TC) frequency may change following volcanic eruptions remains debated, owing to limited contemporary eruption samples. Using last‐millennium multi‐member simulations with CESM, we show that post‐eruption TC genesis potential over the western North Pacific consistently decreases during the storm season following extremely ...
Dubin Huan, Qing Yan, Jinzhe Zhang
wiley   +1 more source

Petrologic characteristics of the 1982 and pre-1982 eruptive products of el Chichon Volcano, Chiapas, México

Geofísica Internacional, 1987
Los estudios petrográficos, macroquímicos y por microsonda de una secuencia de rocas del Volcán El Chichón, Chiapas, México, indican que los materiales “juveniles” de las erupciones de 1982 y las anteriores presentan esencialmente la misma química y la ...
J. J. Macgee, R. I. Tilling, W. A. Duffield   +2 more
doaj   +1 more source

Eruption Column Modeling of Explosive Volcanism on Venus

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Volcanism on Venus has never been directly observed, but several measurements indicate present‐day activity. Volcanism could potentially play a role in climatic processes on Venus, especially in the sulfur cycle like on Earth. Observation of volcanic activity is the primary objective of future Venus spacecraft. However, there are many unknowns
Maxence Lefèvre, Matteo Cerminara, Antonio Costa   +2 more
wiley   +1 more source

Lidar Monitoring at mid latitude of the stratospheric aerosol perturbation produced by the El Chichón eruption

Geofísica Internacional, 1984
Reportamos mediciones lidar de la perturbación en la carga de polvo atmosférico producida por la erupción volcánica de El Chichón. Las mediciones abarcan un período de 19 meses y se toman en una estación de latitud media.
A. D´ Altorio, G. Visconti
doaj   +1 more source

Volcanic Radiative Power Retrieval From Moderate‐to‐Low‐Temperature Features Using a Single TIR Band: Validation Using Volcanic Crater Lakes and Hydrothermal Systems

Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract Assessing Radiative Power (RP) output is essential for monitoring and understanding volcanic systems. While Mid‐Infrared channels are used to assess thermal outputs at volcanoes exhibiting effusive activity, Thermal‐InfraRed (TIR) bands are better suited for measuring moderate‐to‐low‐temperature (≲600 K) features, such as those associated with
Simone Aveni, Sophie Pailot‐Bonnétat, Dmitri Rouwet, Andrew J. L. Harris, Diego Coppola   +4 more
wiley   +1 more source

Explosive volcanism: inception, evolution and hazard / National Research Council, Geophysics Study Committee

Geofísica Internacional, 1989
Este libro sobre "Volcanismo Explosivo" está formado por una colección de trece capítulos o artículos que, desde diferentes enfoques y disciplinas discuten uno de los fenómenos volcánicos de más alta peligrosidad.
J. Urrutia Fucugauchi, Ana Lilian Martin del Pozzo   +1 more
doaj   +1 more source

Beyond the Average: Computation of Vertical Profiles in Dilute Pyroclastic Density Currents and Their Use in Shallow‐Water Models

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 1, January 2025.
Abstract Pyroclastic density currents (PDCs) present significant hazards due to their high temperatures and dynamic pressures. Accurate estimation of dynamic pressure, vital for assessing potential damage, requires knowledge of the vertical variations of velocity and particle concentration within the PDC, particularly in the first few meters of the ...
B. Keim, M. de’ Michieli Vitturi
wiley   +1 more source

Lidar measurements of stratospheric aerosol content and depolarization ratios after the eruption of El Chichón volcano: measurements at Nagoya, Japan

Geofísica Internacional, 1984
Después de la erupción de "El Chichón", se observó un enorme aumento en la dispersión de fondo de la luz desde la capa de aerosol estratosférico, utilizando un lidar de rubí en Nagoya, Japón (35ºN, 137ºW).En la parte inferior de la capa principal de ...
S. Hayashida, A. Kobayashi, Y. Iwasaka
doaj   +1 more source