{"id":6415,"date":"2025-11-21T17:30:27","date_gmt":"2025-11-21T16:30:27","guid":{"rendered":"https:\/\/academiespatiale.fr\/?post_type=tribe_events&#038;p=6415"},"modified":"2026-01-09T15:15:53","modified_gmt":"2026-01-09T14:15:53","slug":"seminaire-le-radar-en-observation-terrestre-nouvelles-perspectives","status":"publish","type":"tribe_events","link":"https:\/\/academiespatiale.fr\/index.php\/event\/seminaire-le-radar-en-observation-terrestre-nouvelles-perspectives\/","title":{"rendered":"[S\u00e9minaire IPGP] Le radar en observation terrestre : nouvelles perspectives"},"content":{"rendered":"<div  class=\"tribe-events-schedule tribe-clearfix\" >\n\t<p class=\"tribe-events-schedule__datetime\">\n\t\t<span class=\"tribe-events-schedule__date tribe-events-schedule__date--start\">\n\t\t\t5 d\u00e9cembre 2025\t\t<\/span>\n\n\t\t\t\t\t<span class=\"tribe-events-schedule__separator tribe-events-schedule__separator--date\">\n\t\t\t\t : \t\t\t<\/span>\n\t\t\t<span class=\"tribe-events-schedule__time tribe-events-schedule__time--start\">\n\t\t\t\t14h00\t\t\t<\/span>\n\t\t\n\t\t\t\t\t\t\t\t\t<span class=\"tribe-events-schedule__separator tribe-events-schedule__separator--time\">\n\t\t\t\t\t&#8211;\t\t\t\t<\/span>\n\t\t\t\n\t\t\t\t\t\t\t<span class=\"tribe-events-schedule__time tribe-events-schedule__time--end\">\n\t\t\t\t\t15h00\t\t\t\t<\/span>\n\t\t\t\n\t\t\t\t\t\t<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-cover is-light\" style=\"padding-top:var(--wp--preset--spacing--80);padding-right:var(--wp--preset--spacing--80);padding-bottom:var(--wp--preset--spacing--80);padding-left:var(--wp--preset--spacing--80);min-height:470px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-white-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-3ae6a1a4 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-left wp-block-paragraph\"><strong>Elise Colin, ing\u00e9nieure de recherche \u00e0 l&rsquo;ONERA, pr\u00e9sentera le vendredi 5 d\u00e9cembre 2025, un s\u00e9minaire intitul\u00e9 : \u00ab&nbsp;Le radar en observation terrestre : nouvelles perspectives&nbsp;\u00bb.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Ce s\u00e9minaire est organis\u00e9 par les Masters 2 FRS, GAED \/ TGAE et IG-AST de l\u2019Universit\u00e9 Paris-Cit\u00e9, de Sorbonne Universit\u00e9 et de l&rsquo;ENSG, dans le cadre de leur s\u00e9rie annuelle d\u00e9di\u00e9e \u00e0 l\u2019observation spatiale, la g\u00e9omatique et leurs applications.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Le radar en observation terrestre : nouvelles perspectives&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Vendredi 6 d\u00e9cembre 2025 \u00e0 14h<br>IPGP, salle P07 Outremer<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Entr\u00e9e libre, ouvert au public<\/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%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"500\" src=\"https:\/\/academiespatiale.fr\/wp-content\/uploads\/2025\/11\/Seminaire_IPGP-UPCite_2025-2026_colin.png\" alt=\"\" class=\"wp-image-6427\" srcset=\"https:\/\/academiespatiale.fr\/wp-content\/uploads\/2025\/11\/Seminaire_IPGP-UPCite_2025-2026_colin.png 750w, https:\/\/academiespatiale.fr\/wp-content\/uploads\/2025\/11\/Seminaire_IPGP-UPCite_2025-2026_colin-300x200.png 300w, https:\/\/academiespatiale.fr\/wp-content\/uploads\/2025\/11\/Seminaire_IPGP-UPCite_2025-2026_colin-360x240.png 360w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">R\u00c9SUM\u00c9<br>Les images radar ont cette particularit\u00e9 enviable de pouvoir \u00eatre acquises de jour comme de nuit et quelles que soient les conditions m\u00e9t\u00e9o. Pourtant, malgr\u00e9 cet atout remarquable, elles ont longtemps cultiv\u00e9 une r\u00e9putation intimidante \u2014 leur g\u00e9om\u00e9trie parfois contre-intuitive, leur mode d&rsquo;acquisition particulier, la pr\u00e9sence de speckle, leurs modes avanc\u00e9s tels que la polarim\u00e9trie, l&rsquo;interf\u00e9rom\u00e9trie&#8230;, ont donn\u00e9 \u00e0 plus d\u2019un analyste l\u2019impression d\u2019un univers r\u00e9serv\u00e9 aux initi\u00e9s. Historiquement d\u00e9velopp\u00e9e dans un contexte essentiellement militaire, l\u2019imagerie radar a progressivement \u00e9volu\u00e9 vers des usages civils et environnementaux, dynamis\u00e9s par l\u2019av\u00e8nement de missions satellitaires majeures telles que Sentinel-1, Biomass ou NiSAR, ainsi que par l\u2019\u00e9mergence d\u2019acteurs commerciaux proposant des r\u00e9solutions sans pr\u00e9c\u00e9dent (Capella, ICEYE, Umbra). Ce s\u00e9minaire proposera d\u2019abord un bref retour historique sur l\u2019\u00e9volution de l\u2019imagerie radar et sur les contributions structurantes de l\u2019Onera dans ce domaine. Il s\u2019agira ensuite de clarifier les fondements physiques et g\u00e9om\u00e9triques qui distinguent fondamentalement une image radar d\u2019une image optique, afin de mieux comprendre les applications cl\u00e9s o\u00f9 cette technologie devient indispensable \u2014 surveillance des milieux forestiers, de la cryosph\u00e8re, suivi des d\u00e9formations du sol, gestion des risques naturels, entre autres \u2014 ainsi que les d\u00e9fis scientifiques encore ouverts pour utiliser au mieux ces images. Enfin, une attention particuli\u00e8re sera port\u00e9e \u00e0 l\u2019essor des s\u00e9ries temporelles radar, aujourd\u2019hui au c\u0153ur des efforts de recherche pour leur potentiel in\u00e9dit dans la caract\u00e9risation fine des processus dynamiques \u00e0 la surface de la Terre.&nbsp;<\/p>\n\n\n\n<p class=\"has-background-color-background-color has-background wp-block-paragraph\">Voir tous les webinaires<br>\u2192 <a href=\"https:\/\/academiespatiale.fr\/index.php\/2025\/11\/21\/seminaire-ipgp-2025-2026\/\">Cycle de s\u00e9minaire IPGP \u2013 Observation spatiale et g\u00e9omatique &#8211; Acad\u00e9mie Spatiale d&rsquo;\u00cele-de-France<\/a><br><br>Site officiel<br>\u2192 <a href=\"http:\/\/teledetection.ipgp.fr\/mpt\/MPT_seminaires.htm\" target=\"_blank\" rel=\"noopener\" title=\"\">Seminaires t\u00e9l\u00e9d\u00e9tection IPGP 2025-2026<\/a><\/p>\n<\/div><\/div>\n\n\n\t<div  class=\"tribe-block tribe-block__events-link\" >\n\t\t<div class=\"tribe-events 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noreferrer nofollow noindex\"\n\t\t\t\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\tGoogle Agenda\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li class=\"tribe-events-c-subscribe-dropdown__list-item tribe-events-c-subscribe-dropdown__list-item--ical\">\n\t\t\t\t\t\t\t\t\t<a\n\t\t\t\t\t\t\t\t\t\thref=\"\"\n\t\t\t\t\t\t\t\t\t\tclass=\"tribe-events-c-subscribe-dropdown__list-item-link\"\n\t\t\t\t\t\t\t\t\t\ttarget=\"_blank\"\n\t\t\t\t\t\t\t\t\t\trel=\"noopener noreferrer nofollow noindex\"\n\t\t\t\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\tiCalendar\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li class=\"tribe-events-c-subscribe-dropdown__list-item tribe-events-c-subscribe-dropdown__list-item--outlook-365\">\n\t\t\t\t\t\t\t\t\t<a\n\t\t\t\t\t\t\t\t\t\thref=\"\"\n\t\t\t\t\t\t\t\t\t\tclass=\"tribe-events-c-subscribe-dropdown__list-item-link\"\n\t\t\t\t\t\t\t\t\t\ttarget=\"_blank\"\n\t\t\t\t\t\t\t\t\t\trel=\"noopener noreferrer nofollow 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