Results 21 to 30 of about 161 (108)

Phosphate Scavenging During Lava‐Seawater Interaction Offshore of Kīlauea Volcano, Hawaii

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The 2018, subaerial eruption of Kīlauea volcano, Hawaii, resulted in a 5‐km‐long stretch of coastline that actively drained lava into the ocean. Nutrients were added to the surrounding ocean through the dissolution of basaltic rock and thermal upwelling ...
Rhea K. Foreman   +8 more
doaj   +1 more source

Ozone Depletion in Tropospheric Volcanic Plumes: From Halogen-Poor to Halogen-Rich Emissions

open access: yesGeosciences, 2018
Volcanic halogen emissions to the troposphere undergo a rapid plume chemistry that destroys ozone. Quantifying the impact of volcanic halogens on tropospheric ozone is challenging, only a few observations exist.
Tjarda J. Roberts
doaj   +1 more source

Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano

open access: yesFrontiers in Earth Science, 2022
Real-time monitoring is crucial to assess hazards and mitigate risks of sustained volcanic eruptions that last hours to months or more. Sustained eruptions have been shown to produce a low frequency (infrasonic) form of jet noise.
Julia E. Gestrich   +8 more
doaj   +1 more source

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

open access: yesInternational 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   +7 more
doaj  

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

Volcano Monitoring With Magnetic Measurements: A Simulation of Eruptions at Axial Seamount, Kīlauea, Bárðarbunga, and Mount Saint Helens

open access: yesGeophysical Research Letters, 2022
Monitoring of active volcanic systems is a challenging task due in part to the trade‐offs between collection of high‐quality data from multiple techniques and the high costs of acquiring such data.
Joseph Biasi   +2 more
doaj   +1 more source

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

open access: yesFrontiers 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   +17 more
doaj   +1 more source

Catastrophic lava flow levee failure: precursors, processes, and implications

open access: yesVolcanica
During an effusive eruption crisis the initial advance of a lava flow is typically the primary focus of model forecasts and hazard management efforts. Flow branching and lateral expansion of lava flows can pose significant dangers within evolving flow ...
Elisabeth Gallant   +6 more
doaj   +1 more source

Reproductive response of the Samoan swallowtail butterfly to variability in host plant and habitat characteristics

open access: yesEcosphere, 2023
The Samoan swallowtail butterfly (Papilio godeffroyi) has become restricted to Tutuila Island, American Samoa. Factors driving its extirpation on other islands may be partly due to the availability and suitability of habitat, given the singular ...
Paul C. Banko   +5 more
doaj   +1 more source

Phosphorus Coupling Obfuscates Lithium Geospeedometry in Olivine

open access: yesFrontiers in Earth Science, 2020
Lithium zoning in zircon and olivine provides a powerful record of crystal histories and magmatic processes in volcanic systems. Characterizing Li behavior in olivine is important because it is one of the few elements in basaltic systems that track short-
Kendra J. Lynn   +2 more
doaj   +1 more source

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