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Research results from NASA-funded science team led by James B. Garvin (NASA GSFC), Daniel A. Slayback (SSAI), Vicki Ferrini (Columbia) in the AGU's Geophysical Research Letters journal suggest the island's lifetime may be extended for another 25-30 years if geochemical fortification continues to protect key regions. The HTHH island is the first surtseyan eruption-based island to have persisted as \"new land\" for more than 6 months since Surtsey erupted near Iceland in 1963. Studies of the landscape evolution of pristine volcanic islands of this variety previously relied on a combination of aerial photography, field mapping, and laboratory sample analysis, but this new work enables an optimized approach via advanced satellite optical and radar imaging in combination with ship-based bathymetric mapping. Results of this work can be applied to understanding numerous small volcanic landforms on Mars whose formation may have been in shallow-water environments during epochs when persistent surface water was present.",
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"title": "How NASA Sees the Life Cycle of Volcanic Island Hunga Tonga-Hunga Ha’apai",
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"release_date": "2022-09-20T00:00:00-04:00",
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{
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"title": "Visualizations of Hunga Tonga Hunga Ha'apai and the Martian Landscape",
"description": "In early 2015, a volcanic eruption in the Kingdom of Tonga created a new island informally known as Hunga Tonga Hunga Ha'apai (HTHH). The subsequent evolution of the new island was previously described in \"The Birth of a New Island\" available here. Below are additional visualizations, including an updated view of the island's appearance in March 2018 as well as some visualizations of the martian surface. Results of this study can enhance our understanding of numerous small volcanic landforms on Mars whose formation may have been in shallow-water environments during epochs when persistent surface water was present.The complete visualization of \"Using Earth to understand how water may have affected volcanoes on Mars\" is available here.Learn more about the evolution of Earth's newest island and how it could reveal new information about the presence of water on Mars: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL076621 || ",
"release_date": "2018-06-15T11:00:00-04:00",
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"media_type": "Image",
"alt_text": "This visualization portrays a slow flyover of the Martian landscape.This video is also available on our YouTube channel.",
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{
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"page_type": "Produced Video",
"title": "Using Earth to Understand How Water May Have Affected Volcanoes on Mars",
"description": "This scientific data visualization shows the evolution of the newly-erupted island in the Kingdom of Tonga. Results of this study can enhance our understanding of numerous small volcanic landforms on Mars whose formation may have been in shallow-water environments during epochs when persistent surface water was present.Learn more about the evolution of Earth's newest island and how it could reveal new infomration about the presence of water on Mars: Monitoring and Modeling the Rapid Evolution of EArth's Newest Volcanic Island: Hunga Tonga Hunga Ha'apai (Tonga) Using High Spatial Resolution Satellite Observations Authors: J.B. Garvin, D.A. Slayback, V. Ferrini, J. Frawley, C. Giguere, G.R. Asrar, K. AndersonPages: 3445-3452 l First Published: 26 March 2018- Volumetric erosion for new hydromagmatic island is approximately 0.0026km3/year- Demostrated first meter-scale documentation of landscapes and topography for a new volcanic island over its initial stages of evolution (approximately 3 years)- Satellite-based measurements of news island predict lifetime of up to approximately 42 years || ",
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"alt_text": "Music: Fountain by Mailcoat Sheppard; Concerning Nymphs by Hammond Roberts.Complete transcript available.This video is also available on the SVS YouTube channel.",
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"title": "Martian Clues on a Baby Island",
"description": "A young volcanic island on Earth may hold clues to former islands on Mars. || Tonga_v60_vis.0780_16x9.jpg (1024x576) [123.5 KB] || Tonga_v60_vis.0780_16x9_print.jpg (1024x576) [123.6 KB] || Tonga_v60_vis.0780_16x9_searchweb.png (320x180) [96.3 KB] || Tonga_v60_vis.0780_16x9_thm.png (80x40) [7.7 KB] || ",
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"alt_text": "A young volcanic island on Earth may hold clues to former islands on Mars.",
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