Results 41 to 50 of about 78,364 (165)
Impact of ashes from the 2022 Tonga volcanic eruption on satellite ocean color signatures
Frontiers in Marine Science, 2023 A powerful eruption within the Hunga Tonga-Hunga Ha’apai (HTHH) volcano (20.64°S, 175.19°W) in the Kingdom of Tonga, occurred on 15 January 2022. The volcanic blast was enormous, leading many scientists to investigate the full impact and magnitude of ...
Andra Whiteside +9 more
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Large‐Scale Disturbances in the Upper Thermosphere Induced by the 2022 Tonga Volcanic Eruption
Geophysical Research Letters, 2023 The effects of volcanic eruptions on the ionosphere have been well studied, however, evidence for the anticipated upper atmospheric neutral variations and their exact extents of change are rarely available.
Ruoxi Li +10 more
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Earth, Planets and Space, 2022 A large eruption of the Hunga Tonga-Hunga Haʻapai volcano in Tonga on January 15, 2022 generated air–sea coupled tsunamis observed at the ocean-bottom pressure sensor network along the Japan Trench (S-net) in Japan.
Yuichiro Tanioka +2 more
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Attributing the Stratospheric Impacts From the Water‐Rich Explosive Hunga Volcanic Eruption of 2022
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.Abstract The January 2022 Hunga volcanic eruption injected an unprecedented ∼150 Tg of water vapor (H2 ${\mathrm{H}}_{2}$O) and ∼0.4 Tg of sulfur dioxide (SO2 ${\text{SO}}_{2}$) into the stratosphere. Observational studies confirm that this perturbation triggered significant changes in stratospheric composition and dynamics.
Freja F. Østerstrøm +4 more
wiley +1 more source
Communication Satellite Access in the Pacific: Current Status and Implications for Policy
Asia &the Pacific Policy Studies, Volume 13, Issue 3, September 2026.ABSTRACT This article focuses on communication satellite access in the Pacific Island countries. While satellites can provide telecommunication and internet access, very little academic literature is available about access to satellite communication technology in the Pacific region or policy responses to it.
Amanda H. A. Watson +1 more
wiley +1 more source
Scientific Reports, 2022 The eruption of the Hunga-Tonga volcano in the South Pacific Ocean on January 15, 2022, at about 4:15 UTC, generated a violent explosion, which created atmospheric pressure disturbances in the form of Rayleigh-Lamb waves detected all over the globe. Here
M. Abbrescia +68 more
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Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.Abstract This study reconstructs a multistep gravity wave (GW) pathway, from the generation of primary GWs by deep convection in the troposphere to the generation of secondary GWs that drive semi‐concentric medium‐scale traveling ionospheric disturbances (MSTIDs) in the ionosphere, during the record‐breaking heavy rainfall over Kyushu, Japan, in August
Masaru Kogure +7 more
wiley +1 more source
Statistical characteristics of volcanogenic tsunami waves in the northwestern Pacific region
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електронікаRelevance. The atmosphere and ionosphere serve as critical pathways for telecommunication systems, radionavigation, radar operations, remote radio sensing, and radio astronomy.
L.F. Chernogor +3 more
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Inception and Plate Evolution of the Lau Back‐Arc Basin From Plate Boundary Refinements
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract Back‐arc basins are important settings for crustal growth that form in response to both near and far‐field tectonic influences. To better understand the processes that control back‐arc basin initiation and evolution, we present a refined model of the kinematics of opening of the Lau Basin, embedded in a global plate model.
Alan T. Baxter +5 more
wiley +1 more source
, 2019 Tonga has experienced a high burden of noncommunicable diseases (NCDs) in the past two decades. Data indicate the continuing rise of four major NCDs -cardiovascular disease, diabetes, cancer,and respiratory
World Bank
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