Results 21 to 30 of about 778 (148)

Dynamics of the December 2020 Ash‐Poor Plume Formed by Lava‐Water Interaction at the Summit of Kīlauea Volcano, Hawaiʻi

Geochemistry, Geophysics, Geosystems, 2023
On 20 December 2020, after more than 2 years of quiescence at Kīlauea Volcano, Hawaiʻi, renewed volcanic activity in the summit crater caused boiling of the water lake over a period of ∼90 min. The resulting water‐rich, electrified plume rose to 11–13 km
Ryan C. Cahalan, Larry G. Mastin, Alexa R. VanEaton, Shaul Hurwitz, Adam B. Smith, Josef Dufek, Stephen A. Solovitz, Matt Patrick, Johanne Schmith, Carolyn Parcheta, Weston A. Thelen, Drew T. Downs   +11 more
doaj   +1 more source

Officially social: Developing a social media crisis communication strategy for USGS Volcanoes during the 2018 Kīlauea eruption

Frontiers in Communication, 2023
The USGS Volcano Science Center has a long history of science and crisis communication about volcanoes and their eruptions. Centered mainly on websites, email notifications, traditional media, and in-person interaction in the past, our toolkit has ...
Wendy K. Stovall, Jessica L. Ball, Elizabeth G. Westby, Michael P. Poland, Aleeza Wilkins, Katherine M. Mulliken   +5 more
doaj   +1 more source

Development and testing of a novel sulfur dioxide sonde [PDF]

Atmospheric Measurement Techniques, 2022
A novel technique has been developed to measure sulfur dioxide (SO2) using a modification of the existing electrochemical concentration cell (ECC) ozonesonde technology.
S. Yoon, A. Kotsakis, A. Kotsakis, S. L. Alvarez, M. G. Spychala, M. G. Spychala, E. Klovenski, P. Walter, G. Morris, G. Morris, E. Corrales, A. Alan, J. A. Diaz, J. A. Diaz, J. H. Flynn   +14 more
doaj   +1 more source

Spatial and Temporal Variations in SO2 and PM2.5 Levels Around Kīlauea Volcano, Hawai'i During 2007–2018

Frontiers in Earth Science, 2020
Among the hazards posed by volcanoes are the emissions of gases and particles that can affect air quality and damage agriculture and infrastructure. A recent intense episode of volcanic degassing associated with severe impacts on air quality accompanied ...
Rachel C. W. Whitty, Evgenia Ilyinskaya, Emily Mason, Penny E. Wieser, Emma J. Liu, Anja Schmidt, Anja Schmidt, Tjarda Roberts, Melissa A. Pfeffer, Barbara Brooks, Tamsin A. Mather, Marie Edmonds, Tamar Elias, David J. Schneider, Clive Oppenheimer, Adrian Dybwad, Patricia A. Nadeau, Christoph Kern   +17 more
doaj   +1 more source

JIRAM Observations of Volcanic Flux on Io: Distribution and Comparison to Tidal Heat Flow Models [PDF]

Geophysical Research Letters, 51, e2023GL105782, 2023
Juno has allowed clear, high-resolution imaging of Io's polar volcanoes using the Jovian Infrared Auroral Mapper (JIRAM) instrument. We have used data from JIRAM's M-band (4.78 um) imager from eleven Juno orbits to construct a global map of volcanic flux.
arxiv   +1 more source

Derivation of high-quality three-dimensional surface deformation velocities through multi-source point cloud fusion: Application to Kīlauea volcano

International Journal of Applied Earth Observations and Geoinformation, 2021
Kīlauea volcano, located in the southeast of Hawai’i, is one of the most active volcanoes in the world. Multi-source InSAR measurements acquired from ascending and descending high-resolution COSMO-SkyMed SAR imagery are used to monitor Kīlauea volcano’s ...
Wenqing Wu, Jun Hu, Jihong Liu, Zhiwei Li, Jianjun Zhu, Bing Xu, Wanji Zheng, Xing Zhang   +7 more
doaj  

The role of Interferometric Synthetic Aperture Radar in Detecting, Mapping, Monitoring, and Modelling the Volcanic Activity of Piton de la Fournaise, La Réunion: A Review

Remote Sensing, 2020
Synthetic Aperture Radar (SAR) remote sensing plays a significant role in volcano monitoring despite the measurements’ non real-time nature. The technique’s capability of imaging the spatial extent of ground motion has especially helped to ...
Nicole Richter, Jean-Luc Froger
doaj   +1 more source

Volcano transition in a solvable model of oscillator glass [PDF]

Phys. Rev. Lett. 120, 264102 (2018), 2017
In 1992 a puzzling transition was discovered in simulations of randomly coupled limit-cycle oscillators. This so-called volcano transition has resisted analysis ever since. It was originally conjectured to mark the emergence of an oscillator glass, but here we show it need not.
arxiv   +1 more source

Variance of the Flexure Model Predictions With Rejuvenated Volcanism at Kīlauea Point, Kaua‘i, Hawai‘i

Frontiers in Earth Science, 2018
The origin of rejuvenated volcanism on mantle plume related oceanic islands remains controversial. One commonly cited model is decompressional melting related to plate flexure from the rapid loading of the lithosphere by the formation of a shield volcano
Thor Thordarson, Michael O. Garcia
doaj   +1 more source

Measuring SO2 Emission Rates at Kīlauea Volcano, Hawaii, Using an Array of Upward-Looking UV Spectrometers, 2014–2017

Frontiers in Earth Science, 2018
Retrieving accurate volcanic sulfur dioxide (SO2) gas emission rates is important for a variety of purposes. It is an indicator of shallow subsurface magma, and thus may signal impending eruption or unrest.
Tamar Elias, Christoph Kern, Keith A. Horton, Andrew J. Sutton, Harold Garbeil   +4 more
doaj   +1 more source