Results 51 to 60 of about 344,095 (178)
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.Abstract Classical satellite altimetry has limited sensitivity to seafloor topography at wavelengths shorter than about 150 km, leaving short‐wavelength structure poorly constrained away from ship tracks. The Surface Water and Ocean Topography (SWOT) mission improves gravity recovery at these scales.
Ruichen Zhou +7 more
wiley +1 more source
Frontiers in Microbiology, 2016 Thermophilic methanogens are common autotrophs at hydrothermal vents, but their growth constraints and dependence on H2 syntrophy in situ are poorly understood.
Begüm D. Topçuoğlu +6 more
doaj +1 more source
Kogia Records in Brazilian Equatorial and Southwestern Atlantic Oceans
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT The pygmy (Kogia breviceps) and dwarf (Kogia sima) sperm whales are cryptic cetaceans characterized by inconspicuous surfacing behavior, small group sizes, and deep‐diving habits, making visual detection particularly challenging. Here, we present the first broad‐scale passive acoustic monitoring (PAM) assessment of Kogia spp.
Joao Pedro M. Mura +12 more
wiley +1 more source
Unprecedented Open‐Ocean Polynya in Breid Bay, East Antarctica in Winter 2024
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract We document an unprecedented winter open‐ocean polynya in the Breid Bay, on 4 August 2024, attaining a maximum area of 89,121 km2. Prior to opening, sea‐ice concentration declined from ∼96% in early July to below 25% by 30 July 2024, indicating substantial preconditioning of the winter ice cover.
Jeebanjyoti Swain +8 more
wiley +1 more source
Seismic precursors and magma ascent before the April 2011 eruption at Axial Seamount [PDF]
Nature Geoscience, 2012 For volcanoes at submarine rift zones, a direct link between seismicity, seafloor deformation and magma intrusion has not been demonstrated. Recordings from ocean-bottom hydrophones and bottom-pressure recorders map an increasing rate of seismicity at Axial Seamount, northeast Pacific, over several years before its eruption in April 2011.
Dziak, R. P. +7 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract The mechanisms underlying the patchy distribution of forearc megathrust earthquakes and arc volcanoes in subduction zones remain poorly understood. Here we present a high‐resolution seismic tomographic model of the Central American subduction zone, derived from a joint inversion of local body‐wave and teleseismic Rayleigh‐wave data.
Junhao Zhang +3 more
wiley +1 more source
The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan
Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2837-2854, September 2026.ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara +6 more
wiley +1 more source
Insights Into Microscale Biomineralization in Deep‐Sea Callogorgia Coral via Halogen Banding
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Halogen incorporation into coral carbonate skeletons serves as a valuable proxy for reconstructing paleoenvironments. However, the underlying mechanisms remain poorly understood. This study employed femtosecond laser ablation‐inductively coupled plasma time‐of‐flight mass spectrometry (fs‐LA‐ICP‐TOFMS) to perform multi‐elemental (I, Br, P, Ca,
Xuna Yin +8 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Megathrust slip behavior in subduction zones can vary along‐strike, yet the mechanisms driving this variability remain uncertain. The Middle America trench offshore Mexico provides an ideal setting to investigate the structural controls on megathrust slip behavior.
Davis Hagemeier +10 more
wiley +1 more source
Seafloor Electromagnetic Measurements above Axial Seamount, Juan de Fuca Ridge
Journal of geomagnetism and geoelectricity, 1997 Magnetotelluric (MT) data were collected at three sites around the eastern rim of the caldera of Axial Seamount, on the Juan de Fuca Ridge. The seamount has been observed to be volcanically and hydrothermally active over the last ten years, and is therefore an excellent target for electromagnetic induction studies on the seafloor. This paper follows an
Constable, S. C. +3 more
openaire +2 more sources