Results 91 to 100 of about 78,364 (165)

Long Period Ionospheric Disturbances Induced by Atmospheric Pressure Waves From the 2022 Tonga Volcanic Eruption

Earth and Space Science
The Tonga‐Hunga volcanic eruption on 15 January 2022 at 04:14:54 UTC produced large perturbations in the lower atmosphere and ionosphere globally. We report that the long period (0.28–16.67 mHz) ionospheric disturbances followed the surface pressure ...
Dwijendra N. Pandey, Rajesh Rekapalli, J. K. Catherine, V. K. Gahalaut, N. Puviarasan   +4 more
doaj   +1 more source

Tonga - Admin Buildings, Free Wesleyan Church of Tonga

, 2020
Handwritten caption: "Admin Buildings Free Wesleyan Church of Tonga.
Photographer: Jennifer Taylor, Photographer: James Rex Conner   +1 more
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Coconut Sector of Tonga: Scenario Analysis, Comparative Trade Dynamics, and Challenges Confronted [PDF]

, 2017
Indian Technical and Economic Cooperation (ITEC) deputation to Kingdom of TongaCoconut economy of Tonga has been experiencing a crisis with respect to production sphere, palm senility, natural calamities, value addition, farm gate prices, stable ...
Kulu Bloomfield, Jayasekhar S, Tevita Lautaha   +2 more
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The impact of the Hunga Tonga–Hunga Ha’apai volcanic eruption on the Peruvian atmosphere: from the sea surface to the ionosphere

Earth, Planets and Space
The eruption of the Hunga Tonga Hunga Ha’apai volcano on 15 January 2022 significantly impacted the lower and upper atmosphere globally. Using multi-instrument observations, we described disturbances from the sea surface to the ionosphere associated with
E. E. Pacheco, J. P. Velasquez, R. Flores, L. Condori, G. Fajardo, K. Kuyeng, D. E. Scipion, M. Milla, J. F. Conte, F. L. Poblet, J. L. Chau, J. Suclupe, R. Rojas, E. Manay   +13 more
doaj   +1 more source

Study on Radioactivity Components, Water Quality and Microstructure Characteristic of Volcano Ash as Geopolymer Artificial Aggregate [PDF]

, 2013
The assessments of radioactivity, water quality testing and microstructure characteristic of volcano ash have been examined. The measurement of the 226Ra, 232Th, 40K, and 238U were carried out using radioactive concentration value.
Nizar, I. Khairul, Bakri, A. M. Mustafa Al, Sandu, Ion, Yahya, Zarina, Rafiza, A. R., Hardjito, Djwantoro, Kamarudin, H.   +6 more
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Volcano in Tonga

, 2011
This account of volcanic eruption and subsequent evacuation in Tonga was given to Jame Lewis by Town Officer, Mr. Moeake Takai, who kept a diary of event at the time, and to whom the author is deeply wishes to acknowledge permission granted by the ...

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Monitoring volcanic activity with distributed acoustic sensing using the Tongan seafloor telecommunications cable

Earth, Planets and Space
The devastation caused by the January 2022 eruption of Hunga Tonga-Hunga Ha’apai volcano (HTHH) in the Tongan archipelago reminded us of the importance of monitoring shallow-sea volcanic activity.
Masaru Nakano, Mie Ichihara, Daisuke Suetsugu, Takao Ohminato, Shigeaki Ono, Rennie Vaiomounga, Taaniela Kula, Masanao Shinohara   +7 more
doaj   +1 more source

Significant Earth’s responses of the 2022 Tonga eruption across Taiwan from multiple sensor observations

Frontiers in Earth Science
On 15 January 2022, a massive underwater volcano erupted in the Tonga region, releasing a significant amount of volcanic ash and gases into the atmosphere.
Bor-Shouh Huang, Chin-Shang Ku, Chin-Jen Lin, Ya-Ju Hsu, Tien-Chi Liu, Jann-Yenq Liu, Jann-Yenq Liu, Yen-Ling Eileen Chen, Da-Yi Chen, Treng-Shi Huang, Juen-Shi Jiang   +10 more
doaj   +1 more source

Tonga Christian and Philosophical Education Framework. [PDF]

Ko e ‘Otua mo Tonga ko Hoku Tofiʻa” Christian Education ...
Tonga, Education Framework
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Crowdsourcing human observations expands and enhances volcano monitoring records

Communications Earth & Environment
Volcano monitoring is constrained by the distribution of sensors that record activity. Here, we explore the role of crowdsourcing to broaden acoustic monitoring records by surveying people across Aotearoa New Zealand about the sounds they heard following
Mary Anne T. Clive, Rachel V. Lawson, Oliver D. Lamb, Sally Potter, Geoff Kilgour, Paul A. Jarvis, Sara Harrison, Brad Scott, Danielle Charlton   +8 more
doaj   +1 more source