{"id":600,"date":"2023-03-11T12:38:22","date_gmt":"2023-03-11T11:38:22","guid":{"rendered":"http:\/\/wp.unil.ch\/crag\/?page_id=600"},"modified":"2024-11-28T15:13:59","modified_gmt":"2024-11-28T14:13:59","slug":"rhone-glacier","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/crag\/rhone-glacier\/","title":{"rendered":"Rh\u00f4ne glacier"},"content":{"rendered":"\n<p>The <a href=\"https:\/\/map.geo.admin.ch\/?lang=en&amp;topic=ech&amp;bgLayer=ch.swisstopo.pixelkarte-farbe&amp;layers=ch.swisstopo.zeitreihen,ch.bfs.gebaeude_wohnungs_register,ch.bav.haltestellen-oev,ch.swisstopo.swisstlm3d-wanderwege&amp;layers_opacity=1,1,1,0.8&amp;layers_visibility=false,false,false,false&amp;layers_timestamp=18641231,,,&amp;E=2672650&amp;N=1159421&amp;zoom=10&amp;crosshair=marker\" target=\"_blank\" rel=\"noreferrer noopener\">Rhone glacier<\/a>, situated in the Valais canton, is a renowned and frequently visited landmark thanks to its convenient access via the road to the Furka Pass. In recent years, however, the glacier has experienced significant melting, leading to the formation of a proglacial lake and threatening its iconic ice cave, a major tourist attraction. To reduce the melting, white tarps have been deployed across the glacier&#8217;s surface. Despite these efforts, late summer 2021 saw the emergence of large circular crevasses near the glacier terminus, signaling the potential collapse of an underlying subglacial cavity, an event that could further accelerate the glacier&#8217;s retreat.<\/p>\n\n\n\n<p>In collaboration with the <a href=\"https:\/\/vaw.ethz.ch\/en\/\" target=\"_blank\" rel=\"noreferrer noopener\">VAW<\/a> lab at the ETH Z\u00fcrich, we began work in the summer of 2022 to monitor and understand the evolution of this collapse feature. Using our drone-based ground-penetrating radar (GPR) system, we collected multiple high-density, repeat 4D GPR datasets over a year. This work aims to quantify changes in the cavity&#8217;s volume and the associated subglacial channels. A publication detailing our findings is currently under review.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636-1024x576.jpg\" alt=\"\" class=\"wp-image-931\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7636.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Organisation of the material prior to fieldwork.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565-1024x576.jpg\" alt=\"\" class=\"wp-image-930\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7565.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Installation of the dGPS base station by Melissa Francey and Ben Robson.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248-1024x576.jpg\" alt=\"\" class=\"wp-image-932\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7248.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Recording data, with the proglacial lake in the background.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570-1024x576.jpg\" alt=\"\" class=\"wp-image-933\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DSCF7570.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Front of the glacier with white tarps to reduce melting.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694-1024x576.jpg\" alt=\"\" class=\"wp-image-935\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0694.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Circular crevasses typical of collapse features.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699-1024x576.jpg\" alt=\"\" class=\"wp-image-934\" srcset=\"https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699-1024x576.jpg 1024w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699-300x169.jpg 300w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699-768x432.jpg 768w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699-1536x864.jpg 1536w, https:\/\/wp.unil.ch\/crag\/files\/2023\/03\/DJI_0699.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Impressive!<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>All photos taken by Bastien Ruols.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Rhone glacier, situated in the Valais canton, is a renowned and frequently visited landmark thanks to its convenient access via the road to the Furka Pass. In recent years, &hellip; <\/p>\n","protected":false},"author":1002595,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-600","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/pages\/600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/users\/1002595"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/comments?post=600"}],"version-history":[{"count":4,"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/pages\/600\/revisions"}],"predecessor-version":[{"id":1515,"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/pages\/600\/revisions\/1515"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/crag\/wp-json\/wp\/v2\/media?parent=600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}