{"id":1630,"date":"2020-05-03T12:45:51","date_gmt":"2020-05-03T17:45:51","guid":{"rendered":"https:\/\/permafrostnet.ca\/?p=1630"},"modified":"2026-06-27T07:16:04","modified_gmt":"2026-06-27T12:16:04","slug":"new-publication-ground-subsidence-and-heave-over-permafrost","status":"publish","type":"post","link":"https:\/\/permafrostnet.ca\/fr\/news\/new-publication-ground-subsidence-and-heave-over-permafrost\/","title":{"rendered":"New publication: Ground subsidence and heave over permafrost."},"content":{"rendered":"<h4 class=\"wp-block-heading\">Ground subsidence and heave over permafrost: hourly time series reveal interannual, seasonal and shorter-term movement caused by freezing, thawing and water movement.<\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide\" style=\"grid-template-columns:49% auto\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"716\" height=\"1024\" src=\"https:\/\/permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-f02-web-716x1024.png\" alt=\"\" class=\"wp-image-1634\" srcset=\"https:\/\/permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-f02-web-716x1024.png 716w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-f02-web-210x300.png 210w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-f02-web-768x1098.png 768w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-f02-web.png 1031w\" sizes=\"(max-width: 716px) 100vw, 716px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"has-normal-font-size\">Heave and subsidence of the ground surface can offer insight into processes of heat and mass transfer in freezing and thawing soils. Additionally, subsidence is an important metric for monitoring and understanding the transformation of permafrost landscapes under climate change. Corresponding ground observations, however, are sparse and episodic. A simple tilt-arm apparatus with logging inclinometer has been developed to measure heave and subsidence of the ground surface with hourly resolution and millimeter accuracy. This contribution reports data from the first two winters and the first full summer, measured at three sites with contrasting organic and frost-susceptible soils in warm permafrost. The patterns of surface movement differ significantly between sites and from a prediction based on the Stefan equation and observed ground temperature. The data are rich in features of heave and subsidence that are several days to several weeks long and that may help elucidate processes in the ground. For example, late-winter heave followed by thawing and subsidence, as reported in earlier literature and hypothesized to be caused by infiltration and refreezing of water into permeable frozen ground, has been detected. An early-winter peak in heave, followed by brief subsidence, is discernible in a previous publication but so far has not been interpreted. An effect of precipitation on changes in surface elevation can be inferred with confidence. These results highlight the potential of ground-based observation of subsidence and heave as an enabler of progress in process understanding, modeling and interpretation of remotely sensed data.<\/p>\n<\/div><\/div>\n\n\n\n<h6 class=\"wp-block-heading\">Gruber, S.: Ground subsidence and heave over permafrost: hourly time series reveal interannual, seasonal and shorter-term movement caused by freezing, thawing and water movement. The Cryosphere, 14, 1437\u20131447, <a href=\"https:\/\/doi.org\/10.5194\/tc-14-1437-2020\">https:\/\/doi.org\/10.5194\/tc-14-1437-2020<\/a>, 2020.<\/h6>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Ground subsidence and heave over permafrost: hourly time series reveal interannual, seasonal and shorter-term movement caused by freezing, thawing and water movement. Heave and subsidence of the ground surface can offer insight into processes of heat and mass transfer in freezing and thawing soils. Additionally, subsidence is an important metric [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[35],"tags":[57,56],"class_list":["post-1630","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-gruber","tag-publication"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>New publication: Ground subsidence and heave over permafrost. &#8211; PermafrostNet<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.permafrostnet.ca\/news\/new-publication-ground-subsidence-and-heave-over-permafrost\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New publication: Ground subsidence and heave over permafrost. &#8211; PermafrostNet\" \/>\n<meta property=\"og:description\" content=\"Ground subsidence and heave over permafrost: hourly time series reveal interannual, seasonal and shorter-term movement caused by freezing, thawing and water movement. Heave and subsidence of the ground surface can offer insight into processes of heat and mass transfer in freezing and thawing soils. Additionally, subsidence is an important metric [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.permafrostnet.ca\/news\/new-publication-ground-subsidence-and-heave-over-permafrost\/\" \/>\n<meta property=\"og:site_name\" content=\"PermafrostNet\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-03T17:45:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-27T12:16:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.permafrostnet.ca\/wp-content\/uploads\/2020\/05\/tc-14-1437-2020-avatar-web.png\" \/>\n\t<meta property=\"og:image:width\" content=\"593\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Tristan MacLean\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PermafrostNet\" \/>\n<meta name=\"twitter:site\" content=\"@PermafrostNet\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tristan MacLean\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimation du temps de lecture\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/\"},\"author\":{\"name\":\"Tristan MacLean\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/#\\\/schema\\\/person\\\/70e67e64ed65de9f0559f2a871467859\"},\"headline\":\"New publication: Ground subsidence and heave over permafrost.\",\"datePublished\":\"2020-05-03T17:45:51+00:00\",\"dateModified\":\"2026-06-27T12:16:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/\"},\"wordCount\":306,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/permafrostnet.ca\\\/wp-content\\\/uploads\\\/2020\\\/05\\\/tc-14-1437-2020-avatar-web.png\",\"keywords\":[\"gruber\",\"publication\"],\"articleSection\":[\"News\"],\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/\",\"url\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/\",\"name\":\"New publication: Ground subsidence and heave over permafrost. &#8211; PermafrostNet\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/permafrostnet.ca\\\/wp-content\\\/uploads\\\/2020\\\/05\\\/tc-14-1437-2020-avatar-web.png\",\"datePublished\":\"2020-05-03T17:45:51+00:00\",\"dateModified\":\"2026-06-27T12:16:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#breadcrumb\"},\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-CA\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/new-publication-ground-subsidence-and-heave-over-permafrost\\\/#primaryimage\",\"url\":\"https:\\\/\\\/permafrostnet.ca\\\/wp-content\\\/uploads\\\/2020\\\/05\\\/tc-14-1437-2020-avatar-web.png\",\"contentUrl\":\"https:\\\/\\\/permafrostnet.ca\\\/wp-content\\\/uploads\\\/2020\\\/05\\\/tc-14-1437-2020-avatar-web.png\",\"width\":593,\"height\":600,\"caption\":\"Four line graphs show snow height, elevation change, ground temperature, and air temperature from 2016 to 2019 at three sites (Active Slayer, Drill the Chill, Evil Peat) and Yellowknife airport. 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Heave and subsidence of the ground surface can offer insight into processes of heat and mass transfer in freezing and thawing soils. 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