Results 81 to 90 of about 211,876 (152)

Bathymetry Prediction With SWOT Gravity Anomaly Using Machine Learning Methods: Paper 1–Model Development

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Only one quarter of the global ocean floor has been directly surveyed; the remaining three quarters are inferred from satellite altimeter‐derived gravity data using techniques developed in the 1990s. These classical methods correlate gravity anomalies with known depths and extrapolate bathymetry in unsounded regions.
David Sandwell, Benjamin J. Phrampus, Farshad Salajegheh, Bjarke Nilsson, Biao Lu, Yao Yu, Hugh Harper, Ole B. Andersen, Walter Smith, Paul Elmore, Jonathan Kirby, James Beale, Jamie Roberts, Luis Altamirano   +13 more
wiley   +1 more source

Along‐Strike Variations in Sub‐Arc Melting Beneath the Alaska Peninsula Revealed by P‐Wave Attenuation

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract The diverse volcanic activity in the Alaska Peninsula section of the Alaska‐Aleutian subduction zone is presumably caused by substantial variations in mantle wedge melting or trans‐crustal processes beneath the arc. In this study, we investigate sub‐arc melting beneath the Alaska Peninsula by measuring P‐wave attenuation, as attenuation is ...
Zhuoran Zhang, S. Shawn Wei, Yurong Riley Zhang, Fan Wang, Dongdong Tian   +4 more
wiley   +1 more source

Atmospheric impact of the 1783-1784 Laki Eruption: Part II - Climatic effect of sulphate aerosol [PDF]

, 2003
The long 1783-1784 eruption of Laki in southern Iceland, was one of the first eruptions to have been linked to an observed climate anomaly, having been held responsible for cold temperatures over much of the Northern Hemisphere in the period 1783-1785.
Highwood, E. J., Stevenson, D.S., Stevenson, D. S.; id_orcid, Stevenson, D. S., D. S. Stevenson, E.-J. Highwood, Highwood, E.J., Highwood, E.-J.   +7 more
core   +2 more sources

Monitoring and Modeling the Rapid Evolution of Earth's Newest Volcanic Island: Hunga Tonga Hunga Ha'apai (Tonga) Using High Spatial Resolution Satellite Observations

Geophysical Research Letters, 2018
We have monitored a newly erupted volcanic island in the Kingdom of Tonga, unofficially known as Hunga Tonga Hunga Ha'apai, by means of relatively frequent high spatial resolution (~50 cm) satellite observations.
J. B. Garvin, D. A. Slayback, V. Ferrini, J. Frawley, C. Giguere, G. R. Asrar, K. Andersen   +6 more
doaj   +1 more source

Investigating the Magma Reservoir of Taupō Volcano Using Receiver Functions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract The Taupō Volcanic Zone (TVZ), one of the most active volcanic systems globally, poses significant hazards. To improve our understanding of crustal structure and implications for hazards, we apply P‐to‐S receiver function analysis, supplemented by S‐to‐P for validation, to temporary seismic network data surrounding Taupō volcano. This provides
William Buffett, Catherine Rychert, Nicholas Harmon, Finnigan Illsley‐Kemp, Martha Savage, Eleanor Mestel   +5 more
wiley   +1 more source

Numerical simulation of atmospheric Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption

, 2022
On January 15th, 2022, around 4:30 UTC the eruption of the Hunga-Tonga volcano, in the South Pacific Ocean, generated a violent underwater explosion. In addition to tsunami waves that affected the Pacific coasts, the eruption created atmospheric pressure disturbances that spread out in the form of Lamb waves.
Angel Amores, Sebastian Monserrat, Marta Marcos, Daniel Argüeso, Joan Villalonga, Gabriel Jordà, Damià Gomis   +6 more
openaire   +3 more sources

Marine Sediment Record of Eruption‐Fed Vertical Density Currents, Kermadec Arc (Rangitāhua)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Products of explosive volcanism can be transported into the oceans, where they form marine tephra layers. The processes responsible for their deposition are often complex, involving multiple transport mechanisms. During the RV Investigator voyage IN2022‐V02 (2022), a 35‐cm‐thick marine tephra unit was piston‐cored at 2,460 m water depth in the
Janne M. Scheffler, Martin Jutzeler, Steffen Kutterolf, Rebecca J. Carey, Josephin Wolf, Jacek Raddatz, Kuo‐Lung Wang, Hao‐Yang Lee   +7 more
wiley   +1 more source

Emplacement of Hybrid Continental‐Oceanic Arc Terranes Without Collision: The Devonian Calliope Arc (New England Orogen, Australia)

Tectonics, Volume 45, Issue 7, July 2026.
Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes, Gideon Rosenbaum, Carlos A. Spier, Jack F. Ward, Luke A. Milan   +4 more
wiley   +1 more source

Large Ozone Hole in 2023 and the Hunga Tonga Volcanic Eruption

Pure and Applied Geophysics
AbstractPolar stratospheric chemistry is highly sensitive to changes in water vapor content and temperature. We identified an unusual behavior of water vapor and temperature in the southern polar winter stratosphere in 2023. The relationships between the Hunga-Tonga eruption injection of water vapor (detected in the tropics) and its transport to SH ...
Michal Kozubek, Peter Krizan, Sunil Kumar Ramatheerthan, Jan Laštovička   +3 more
openaire   +2 more sources

Atmospheric impact of the 1783-1784 Laki eruption: Part I Chemistry modelling. [PDF]

, 2003
Results from the first chemistry-transport model study of the impact of the 1783–1784 Laki fissure eruption (Iceland: 64°N, 17°W) upon atmospheric composition are presented.
Stevenson, D. S.; id_orcid, Stevenson, D. S., D. S. Stevenson, Derwent, R. G., Highwood, E.J., W. J. Collins, C. E. Johnson, V. Gauci, Johnson, C.E., Derwent, R.G., E. J. Highwood, Highwood, E. J., Collins, W. J., Stevenson, D.S., R. G. Derwent, Johnson, C. E., Collins, W.J., Gauci, V.   +17 more
core   +2 more sources