{"id":8388,"date":"2025-03-25T10:09:24","date_gmt":"2025-03-25T15:09:24","guid":{"rendered":"https:\/\/permafrostnet.ca\/?p=8388"},"modified":"2026-05-22T11:32:26","modified_gmt":"2026-05-22T16:32:26","slug":"seminar-2-april-ground-ice-detection-with-spectral-induced-polarization","status":"publish","type":"post","link":"https:\/\/permafrostnet.ca\/fr\/news\/seminar-2-april-ground-ice-detection-with-spectral-induced-polarization\/","title":{"rendered":"Seminar &#8211; 2 April &#8211; Ground Ice Detection with Spectral Induced Polarization."},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p><a href=\"https:\/\/permafrostnet.ca\/fr\/people\/hosein-fereydooni\/\">Hosein Fereydooni<\/a> will be presenting<em> Ground Ice Detection with Spectral Induced Polarization<span style=\"font-family: -webkit-standard; font-size: medium; font-style: normal; white-space: normal;\"><\/span>.<\/em><\/p>\n\n\n\n<p>Date:<strong>\u00a02 April\u00a02025<\/strong><br>Time:<strong>\u00a013:00-14:00<\/strong>\u00a0Eastern Time<br>Location: Zoom (details are posted in our Teams site).<\/p>\n\n\n\n<p>The melting of ground ice poses significant hazards in permafrost regions, leading to ground instability, infrastructure damage, and environmental changes. Detecting ground ice effectively is crucial for mitigating these risks, yet conventional geophysical methods\u2014such as electrical resistivity, seismic surveys, and ground-penetrating radar\u2014often produce ambiguous results due to the overlapping properties of frozen and unfrozen ground.<br><br>This presentation will explore the potential of Spectral Induced Polarization (SIP) as a more precise method for identifying ground ice. It will begin by discussing the theoretical foundations and mathematical principles of SIP, followed by an examination of various polarization mechanisms, with a focus on those specific to frozen environments, and an explanation of relaxation time. The study will then present field measurement results from a permafrost site in Yukon, demonstrating SIP\u2019s ability to detect and distinguish ground ice in real-world conditions.<strong><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1920\" height=\"1440\" src=\"https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20.jpg\" alt=\"\" class=\"wp-image-8391\" srcset=\"https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20.jpg 1920w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20-300x225.jpg 300w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20-1024x768.jpg 1024w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20-768x576.jpg 768w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20-1536x1152.jpg 1536w, https:\/\/permafrostnet.ca\/wp-content\/uploads\/2025\/03\/MicrosoftTeams-image-20-16x12.jpg 16w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Hosein Fereydooni will be presenting Ground Ice Detection with Spectral Induced Polarization. Date:\u00a02 April\u00a02025Time:\u00a013:00-14:00\u00a0Eastern TimeLocation: Zoom (details are posted in our Teams site). The melting of ground ice poses significant hazards in permafrost regions, leading to ground instability, infrastructure damage, and environmental changes. Detecting ground ice effectively is crucial for [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":8393,"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":[35,91],"tags":[90],"class_list":["post-8388","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-seminar","tag-seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Seminar - 2 April - Ground Ice Detection with Spectral Induced Polarization. &#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\/seminar-2-april-ground-ice-detection-with-spectral-induced-polarization\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seminar - 2 April - Ground Ice Detection with Spectral Induced Polarization. &#8211; PermafrostNet\" \/>\n<meta property=\"og:description\" content=\"Hosein Fereydooni will be presenting Ground Ice Detection with Spectral Induced Polarization. Date:\u00a02 April\u00a02025Time:\u00a013:00-14:00\u00a0Eastern TimeLocation: Zoom (details are posted in our Teams site). The melting of ground ice poses significant hazards in permafrost regions, leading to ground instability, infrastructure damage, and environmental changes. Detecting ground ice effectively is crucial for [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.permafrostnet.ca\/news\/seminar-2-april-ground-ice-detection-with-spectral-induced-polarization\/\" \/>\n<meta property=\"og:site_name\" content=\"PermafrostNet\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-25T15:09:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-22T16:32:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.permafrostnet.ca\/wp-content\/uploads\/2025\/03\/DJI_0168.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1439\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/seminar-2-april-ground-ice-detection-with-spectral-induced-polarization\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/news\\\/seminar-2-april-ground-ice-detection-with-spectral-induced-polarization\\\/\"},\"author\":{\"name\":\"Tristan MacLean\",\"@id\":\"https:\\\/\\\/www.permafrostnet.ca\\\/#\\\/schema\\\/person\\\/70e67e64ed65de9f0559f2a871467859\"},\"headline\":\"Seminar &#8211; 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Date:\u00a02 April\u00a02025Time:\u00a013:00-14:00\u00a0Eastern TimeLocation: Zoom (details are posted in our Teams site). The melting of ground ice poses significant hazards in permafrost regions, leading to ground instability, infrastructure damage, and environmental changes. Detecting ground ice effectively is crucial for [&hellip;]","_links":{"self":[{"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/posts\/8388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/comments?post=8388"}],"version-history":[{"count":3,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/posts\/8388\/revisions"}],"predecessor-version":[{"id":8395,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/posts\/8388\/revisions\/8395"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/media\/8393"}],"wp:attachment":[{"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/media?parent=8388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/categories?post=8388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/permafrostnet.ca\/fr\/wp-json\/wp\/v2\/tags?post=8388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}