{"id":129969,"date":"2024-11-25T16:53:10","date_gmt":"2024-11-25T09:53:10","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=129969"},"modified":"2024-11-25T16:53:10","modified_gmt":"2024-11-25T09:53:10","slug":"scientists-uncover-a-hidden-antarctic-world","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=129969","title":{"rendered":"Scientists Uncover a Hidden Antarctic World"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p>Beneath <strong>Antarctica\u2019s Dotson Ice Shelf<\/strong> lies a world previously unknown to scientists\u2014a landscape of peaks, valleys, and teardrop-shaped formations etched by <strong>melting ice<\/strong> and <strong>ocean<\/strong> currents. This groundbreaking discovery is offering valuable insights into the processes driving <strong>ice melt<\/strong> and their global implications.<\/p>\n<h2 class=\"wp-block-heading\">Antarctica\u2019s Upside-Down Terrain Stripped Open<\/h2>\n<p>In <strong>2022<\/strong>, an international research team led by Professor <strong>Anna W\u00e5hlin<\/strong> from the <strong>University of Gothenburg<\/strong> used the unmanned submersible <em>Ran<\/em> to explore the underside of the <strong>Dotson Ice Shelf<\/strong> in <strong>West Antarctica<\/strong>. For 27 days, the submersible navigated 1,000 kilometers under 350 meters of <strong>ice<\/strong>, creating the first-ever map of an <strong>ice shelf\u2019s<\/strong> basal topography.<\/p>\n<p>What the team found was startling: the <strong>ice shelf\u2019s<\/strong> underside resembled a vast, otherworldly landscape with features like <strong>plateaus<\/strong>, <strong>swirly erosion patterns<\/strong>, and massive <strong>scooped-out formations<\/strong>. These discoveries offered an unprecedented glimpse into the interactions between warm <strong>ocean currents<\/strong> and <strong>ice<\/strong>, shedding light on how <strong>Antarctic ice<\/strong> is melting.<\/p>\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201c<em>It looked like the Grand Canyon. There were plateaus and swirly patterns melted into the ice\u201d \u2013 Anna W\u00e5hlin<\/em><\/p>\n<\/blockquote>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"577\" alt=\"Anna W\u00e5hlin\" class=\"wp-image-71871\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin-380x214.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin-520x293.jpg 520w\" data-lazy-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin.jpg\"\/><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"577\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin.jpg\" alt=\"Anna W\u00e5hlin\" class=\"wp-image-71871\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin-380x214.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Anna-Wahlin-520x293.jpg 520w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">An international team of scientists led by <strong>Anna W\u00e5hlin<\/strong> sent a submersible to explore <strong>under 350 meters of Antarctic ice<\/strong> in 2022. (Credit: Anders Sj\u00f6vall).<\/figcaption><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\">The Role of Ice Shelves in Sea Level Rise<\/h2>\n<p><strong>Ice shelves<\/strong> like <strong>Dotson<\/strong> float on the <strong>ocean<\/strong>, and their melting does not directly raise <strong>sea levels<\/strong>. However, they play a crucial role in buttressing land-based <strong>glaciers<\/strong>, preventing their flow into the sea. As these shelves thin or collapse, <strong>glaciers<\/strong> behind them accelerate toward the <strong>ocean<\/strong>, contributing to global <strong>sea level rise<\/strong>.<\/p>\n<p>The <strong>Dotson Ice Shelf<\/strong> is thinning faster than other <strong>ice shelves<\/strong> in the <strong>Amundsen Sea<\/strong> region, driven by warm <strong>ocean currents<\/strong> spreading southward. The nearby <a href=\"https:\/\/dailygalaxy.com\/2024\/11\/scientists-aim-to-halt-doomsday-glacier-collapse-with-a-giant-underwater-curtain\/\"><strong>Thwaites Glacier<\/strong>, often called the \u201c<strong>Doomsday Glacier<\/strong>,\u201d is particularly concerning<\/a>. If it fully melts, it could <a href=\"https:\/\/dailygalaxy.com\/2024\/11\/doomsday-glacier-flood-new-york-and-miami\/\" target=\"_blank\" rel=\"noreferrer noopener\">raise global <strong>sea level<\/strong><\/a><strong>s<\/strong> by up to <strong>65 centimeters<\/strong>.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"622\" alt=\"\u201cswirls And Loops\u201d Trace The Path Of Meltwater Flowing Under The Ice\" class=\"wp-image-71872\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice-380x231.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice-520x316.jpg 520w\" data-lazy-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice.jpg\"\/><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"622\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice.jpg\" alt=\"\u201cswirls And Loops\u201d Trace The Path Of Meltwater Flowing Under The Ice\" class=\"wp-image-71872\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice-380x231.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/swirls-and-loops-trace-the-path-of-meltwater-flowing-under-the-ice-520x316.jpg 520w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">Never-before-seen <strong>\u201cswirls and loops<\/strong>\u201d trace the path of meltwater flowing under the ice. (Credit Filip StedtUniversity of Gothenburg).<\/figcaption><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\">Ecological Shifts in the Amundsen Sea<\/h2>\n<p>The melting <strong>ice<\/strong> is not only a threat to <strong>sea levels<\/strong> but also to the unique ecosystems of the <strong>Amundsen Sea<\/strong>. Meltwater from the <strong>Dotson Ice Shelf<\/strong> carries <strong>iron<\/strong>, fueling <strong>phytoplankton blooms<\/strong> that form the base of the <strong>Antarctic food web<\/strong>. These microscopic organisms absorb significant amounts of <strong>carbon dioxide<\/strong>, playing a critical role in <strong>climate regulation<\/strong>.<\/p>\n<p>Oceanographer <strong>Patricia Yager<\/strong> likened the under-ice environment to a vibrant <strong>coral reef<\/strong>. However, rapid <strong>ice melting<\/strong> is altering the <strong>salinity<\/strong> and stability of the <strong>ocean<\/strong>, potentially disrupting these delicate ecosystems and the <strong>carbon cycles<\/strong> they support.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" alt=\"Meltwater Flowing From The Dotson Ice Shelf Boys Iron To The Surface\" class=\"wp-image-71873\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface-380x214.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface-520x293.jpg 520w\" data-lazy-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface.jpg\"\/><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface.jpg\" alt=\"Meltwater Flowing From The Dotson Ice Shelf Boys Iron To The Surface\" class=\"wp-image-71873\" srcset=\"https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface.jpg 1024w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface-380x214.jpg 380w, https:\/\/bunny-wp-pullzone-eduayjtzy5.b-cdn.net\/wp-content\/uploads\/2024\/11\/Meltwater-flowing-from-the-Dotson-Ice-Shelf-boys-iron-to-the-surface-520x293.jpg 520w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">Meltwater flowing from the Dotson Ice Shelf boys iron to the surface, allowing <strong>phytoplankton<\/strong> to bloom. (Credit: Patricia Yager)<\/figcaption><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\">Challenges in Antarctic Research<\/h2>\n<p>In <strong>2024<\/strong>, <strong>W\u00e5hlin\u2019s team<\/strong> returned to continue mapping the underside of the <strong>Dotson Ice Shelf<\/strong>, but the mission ended abruptly when <em>Ran<\/em> disappeared under the <strong>ice<\/strong>. Despite the setback, the research highlighted the complexities of exploring such extreme and remote environments. The team suspects <strong>marine mammals<\/strong>, like <strong>Weddell seals<\/strong>, may have interfered with the submersible, causing it to fail.<\/p>\n<p>Still, the mission revealed patterns and structures beneath the <strong>ice<\/strong> that defy current scientific models, indicating much remains to be learned about the processes shaping <strong>Antarctica\u2019s ice<\/strong>.<\/p>\n<p><!-- CONTENT END 1 -->\n<\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/dailygalaxy.com\/2024\/11\/the-grand-canyon-under-the-ice-scientists-uncover-a-hidden-antarctic-world\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Beneath Antarctica\u2019s Dotson Ice Shelf lies a world previously unknown to scientists\u2014a landscape of peaks, valleys, and teardrop-shaped formations etched by melting ice and ocean currents. This groundbreaking discovery is &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=129969\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-129969","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/129969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=129969"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/129969\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=129969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=129969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=129969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}