{"id":1808746,"date":"2022-08-26T11:06:08","date_gmt":"2022-08-26T15:06:08","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1808746"},"modified":"2022-08-26T11:09:34","modified_gmt":"2022-08-26T15:09:34","slug":"remotely-operated-vessel-maps-tonga-caldera","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2022\/08\/remotely-operated-vessel-maps-tonga-caldera\/","title":{"rendered":"Remotely Operated Vessel Maps Tonga Caldera"},"content":{"rendered":"<figure id=\"attachment_1808748\" aria-describedby=\"caption-attachment-1808748\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.sea-kit.com\/post\/press-release-usv-returns-from-first-caldera-survey-in-tonga-loaded-with-astounding-data\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1808748\" data-permalink=\"https:\/\/www.maproomblog.com\/2022\/08\/remotely-operated-vessel-maps-tonga-caldera\/tonga-post-eruption\/\" data-orig-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption.jpg\" data-orig-size=\"600,600\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"tonga-post-eruption\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;SEA-KIT\/NIWA-Nippon Foundation TESMaP survey team&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption-300x300.jpg\" data-large-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption.jpg\" class=\"wp-image-1808748 size-medium\" src=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption-300x300.jpg\" alt=\"Aerial view of the Hunga-Tonga Hunga-Ha\u2019apai (HT-HH) volcano, showing new multibeam depth data overlaid on a satellite image of the islands (deep depths in blue, shallow depths in red).\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption-300x300.jpg 300w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption-150x150.jpg 150w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption-400x400.jpg 400w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/08\/tonga-post-eruption.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1808748\" class=\"wp-caption-text\">SEA-KIT\/NIWA-Nippon Foundation TESMaP survey team<\/figcaption><\/figure>\n<p>As part of the <a href=\"https:\/\/www.sea-kit.com\/tongaeruptionseabedmappingproject\">Tonga Eruption Seabed Mapping Project<\/a>, a robotic vessel <a href=\"https:\/\/www.sea-kit.com\/post\/press-release-usv-returns-from-first-caldera-survey-in-tonga-loaded-with-astounding-data\">has conducted a bathymetric survey of the Hunga Tonga-Hunga Ha\u2018apai volcano\u2019s underwater caldera<\/a>. Said volcano, you will recall, erupted spectacularly last January. The 12-metre vessel, USV <em>Maxlimer<\/em>, was controlled remotely from 16,000 km away, and carried sensors to measure the state of the seabed, temperature, salinity, turbidity, dissolved oxygen and chemical plumes. More at the <a href=\"https:\/\/www.sea-kit.com\/post\/press-release-usv-returns-from-first-caldera-survey-in-tonga-loaded-with-astounding-data\">press release<\/a>. <a href=\"https:\/\/www.bbc.com\/news\/science-environment-62606589\">BBC News coverage<\/a>.<\/p>\n<p>Previously: <a href=\"https:\/\/www.maproomblog.com\/2022\/02\/the-rise-and-fall-of-hunga-tonga-hunga-haapai\/\">The Rise and Fall of Hunga Tonga-Hunga Ha\u2018apai<\/a>; <a href=\"https:\/\/www.maproomblog.com\/2022\/01\/hunga-tonga-hunga-haapai-before-and-after\/\">Hunga Tonga-Hunga Ha\u2018apai, Before and After<\/a>; <a href=\"https:\/\/www.maproomblog.com\/2022\/01\/how-satellites-revealed-the-hunga-tonga-hunga-haapai-eruption\/\">How Satellites Revealed the Hunga-Tonga Hunga-Ha\u2018apai Eruption<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As part of the Tonga Eruption Seabed Mapping Project, a robotic vessel has conducted a bathymetric survey of the Hunga Tonga-Hunga Ha\u2018apai volcano\u2019s underwater caldera. Said volcano, you will recall, erupted spectacularly last January. The&hellip; <a href=\"https:\/\/www.maproomblog.com\/2022\/08\/remotely-operated-vessel-maps-tonga-caldera\/\">More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[846,230],"tags":[431,1553,682],"class_list":["post-1808746","post","type-post","status-publish","format-link","hentry","category-disasters","category-oceans","tag-bathymetry","tag-tonga","tag-volcanoes","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1809954,"url":"https:\/\/www.maproomblog.com\/2022\/11\/extent-of-tongan-eruption-revealed-by-new-seafloor-maps\/","url_meta":{"origin":1808746,"position":0},"title":"Extent of Tongan Eruption Revealed by New Seafloor Maps","author":"Jonathan Crowe","date":"20 November 2022","format":"link","excerpt":"Scientists have now mapped the seafloor around the Hunga Tonga-Hunga Ha\u2018apai volcano, and as a result we have learned just how massive the January 2022 eruption was. By comparing their soundings with 2017 data, they determined that at least 9.5 km3 of material was discharged. Debris was found 80 km\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"Hunga Tonga-Hunga Ha'apai 3D bathymetry map","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/niwa-tonga-caldera-1024x576.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/niwa-tonga-caldera-1024x576.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/niwa-tonga-caldera-1024x576.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/niwa-tonga-caldera-1024x576.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1805949,"url":"https:\/\/www.maproomblog.com\/2022\/01\/hunga-tonga-hunga-haapai-before-and-after\/","url_meta":{"origin":1808746,"position":1},"title":"Hunga Tonga-Hunga Ha\u2018apai, Before and After","author":"Jonathan Crowe","date":"27 January 2022","format":"link","excerpt":"NASA Earth Observatory has released digital elevation maps of Hunga Tonga-Hunga Ha\u2018apai both before and after the volcanic eruption earlier this month. The digital elevation maps above and below show the dramatic changes at Hunga Tonga-Hunga Ha\u2018apai, the uppermost part of a large underwater volcano. It rises 1.8 kilometers (1.1\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"Two maps showing Hunga Tonga-Hunga Ha\u2018apai before and after the volcanic eruption of January 2022","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/01\/nasa-eo-hunga-tonga-1024x350.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/01\/nasa-eo-hunga-tonga-1024x350.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/01\/nasa-eo-hunga-tonga-1024x350.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/01\/nasa-eo-hunga-tonga-1024x350.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1805902,"url":"https:\/\/www.maproomblog.com\/2022\/01\/how-satellites-revealed-the-hunga-tonga-hunga-haapai-eruption\/","url_meta":{"origin":1808746,"position":2},"title":"How Satellites Revealed the Hunga-Tonga Hunga-Ha&#8217;apai Eruption","author":"Jonathan Crowe","date":"20 January 2022","format":"link","excerpt":"The BBC\u2019s Jonathan Amos looks at the ways satellites have collected imagery and data on the Hunga-Tonga Hunga-Ha\u2019apai volcanic eruption.","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1806030,"url":"https:\/\/www.maproomblog.com\/2022\/02\/the-rise-and-fall-of-hunga-tonga-hunga-haapai\/","url_meta":{"origin":1808746,"position":3},"title":"The Rise and Fall of Hunga Tonga-Hunga Ha\u2018apai","author":"Jonathan Crowe","date":"11 February 2022","format":"link","excerpt":"A storymap from Esri\u2019s Robert Waterman, based on Maxar satellite imagery, shows the rise and fall of Hunga Tonga and Hunga Ha\u2018apai from being two separate islands before a 2015 eruption combined them, through its time as an apparently stable but awkwardly compound-named single island until it got blown apart\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1791562,"url":"https:\/\/www.maproomblog.com\/2021\/10\/elsewhere-the-age-of-islands\/","url_meta":{"origin":1808746,"position":4},"title":"Elsewhere (The Age of Islands)","author":"Jonathan Crowe","date":"13 October 2021","format":false,"excerpt":"It\u2019s ostensibly another quirky book about islands\u2014there are, to be sure, a lot of them out on that subject\u2014but Alastair Bonnett\u2019s latest book has an urgency and pertinence to it that is belied by the relatively anodyne title it bears in its U.S. edition. Elsewhere: A Journey into Our Age\u2026","rel":"","context":"In &quot;Book Reviews&quot;","block_context":{"text":"Book Reviews","link":"https:\/\/www.maproomblog.com\/category\/book-reviews\/"},"img":{"alt_text":"Elsewhere (book cover)","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2021\/08\/elsewhere-194x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1812009,"url":"https:\/\/www.maproomblog.com\/2023\/01\/large-scale-geologic-maps-of-mars\/","url_meta":{"origin":1808746,"position":5},"title":"Large-Scale Geologic Maps of Mars","author":"Jonathan Crowe","date":"26 January 2023","format":"link","excerpt":"The USGS\u2019s Astrogeology Science Center highlights three geologic maps of Mars released in late 2021. The maps are large-scale, focusing on specific Martian features (e.g. Olympus Mons, above). Though maps have historically covered large areas, with crewed lunar missions on the horizon and other missions across the solar system in\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"Geologic Map of Olympus Mons Caldera, Mars (USGS)","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/01\/usgs-olympus-mons-904x1024.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/01\/usgs-olympus-mons-904x1024.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/01\/usgs-olympus-mons-904x1024.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/01\/usgs-olympus-mons-904x1024.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1808746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1808746"}],"version-history":[{"count":7,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1808746\/revisions"}],"predecessor-version":[{"id":1808754,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1808746\/revisions\/1808754"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1808746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1808746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1808746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}