Results 31 to 40 of about 3,936 (120)

Fragmentation behavior of eruptive products of Popocatépetl volcano: An experimental contribution

Geofísica Internacional, 2019
En este artículo se presenta un estudio experimental del comportamiento de fragmentación de muestras naturales del volcán Popocatépetl en un tubo de choque.
Miguel Angel Alatorre-Ibargüengoitia, Alejandra Arciniega-Ceballos, Carlos Linares López, Donald B. Dingwell, Hugo Delgado-Granados   +4 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Reconstruction of glacier area on Citlaltépetl volcano, 1958 and implications for Mexico’s deglaciation rates

Geofísica Internacional, 2015
En este trabajo se llevó a cabo un análisis detallado de las mediciones hechas en el Glaciar Norte del volcán Citlaltépetl en 1958 y documentadas en el trabajo de Lorenzo de 1964.
Jorge Cortés-Ramos, Hugo Delgado Granados   +1 more
doaj   +1 more source

Breathing and Coughing: The Extraordinarily High Degassing of Popocatépetl Volcano Investigated With an SO2 Camera

Frontiers in Earth Science, 2018
How do lava domes release volcanic gases? Studying this problem is crucial to understand, and potentially anticipate, the generation of the sudden and dangerous explosive eruptions that frequently accompany dome extrusions.
Robin Campion, Hugo Delgado-Granados, Denis Legrand, Noémie Taquet, Thomas Boulesteix, Salvador Pedraza-Espitía, Salvador Pedraza-Espitía, Thomas Lecocq   +7 more
doaj   +1 more source

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey, K. Cawse‐Nicholson, J. B. Fisher, S. J. Hook, G. C. Hulley, C. M. Lee, M. Silvestri, J. O. Thompson, I. M. Watson   +8 more
wiley   +1 more source

Geotourism in Monogenetic Volcanoes: The Case of Tapias-Guacaica Monogenetic Volcanic Field in Colombia

Heritage
Geosciences today play a vital societal role beyond their traditional extractive functions, offering innovative approaches to disseminate knowledge that supports local problem solving and climate resilience.
Alejandro Arias-Díaz, Erika Ibargüen-Angulo, Hugo Murcia, Susana Osorio-Ocampo, Gina Bolaños-Cabrera, Luis Alvaro Botero-Gómez, Ana Riascos-Hurtado   +6 more
doaj   +1 more source

Seismic Structural Reliability by Time‐Variant Fragility Functions

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2669-2674, September 2026.
ABSTRACT The seismic vulnerability of aging structures is often represented in the form of fragility curves that vary with time. On one hand, each of these functions is intended to apply if the earthquake hits at the time the fragility refers to. On the other hand, performance‐based earthquake engineering (PBEE) resources to classical probabilistic ...
Iunio Iervolino
wiley   +1 more source

Load Stress Controls on Directional Lava Dome Growth at Volcán de Colima, Mexico

Frontiers in Earth Science, 2019
During eruptive activity of andesitic stratovolcanoes, the extrusion of lava domes, their collapse and intermittent explosions are common volcanic hazards.
Edgar U. Zorn, Edgar U. Zorn, Nicolas Le Corvec, Nick R. Varley, Jacqueline T. Salzer, Thomas R. Walter, Carlos Navarro-Ochoa, Dulce M. Vargas-Bracamontes, Samuel T. Thiele, Raúl Arámbula Mendoza   +9 more
doaj   +1 more source

Geochemical characterization of volcanic gas emissions at Santa Ana and San Miguel volcanoes, El Salvador, using remote-sensing and in situ measurements

Frontiers in Earth Science, 2023
Volcanic degassing provides important information for the assessment of volcanic hazards. Santa Ana and San Miguel are open vent volcanoes along the Central American Volcanic Arc–CAVA, where the magmatism, basaltic to dacitic, is related to the near ...
Xochilt Gutiérrez, Nicole Bobrowski, Nicole Bobrowski, Julian Rüdiger, Marcello Liotta, Bastien Geil, Thorsten Hoffmann, Eduardo Gutiérrez, Florian Dinger, Florian Dinger, Francisco Montalvo, Mirian Villalobos, Demetrio Escobar   +12 more
doaj   +1 more source

Long‐Term Trends in the Ionospheric Equivalent Slab Thickness as a Proxy of Climate Change in the Ionosphere

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Global warming warms the lower atmosphere, but cools and contracts the upper atmosphere. These changes also affect the ionosphere, altering the vertical distribution of plasma through changes in the plasma scale height. Here, we use ionospheric equivalent slab thickness (τ) multidecadal time series, derived through observations from co‐located
A. Pignalberi, T. Alberti
wiley   +1 more source