{"id":478923,"date":"2025-05-02T09:48:29","date_gmt":"2025-05-02T07:48:29","guid":{"rendered":"https:\/\/www.ecinews.fr\/?p=478923"},"modified":"2025-05-02T09:48:29","modified_gmt":"2025-05-02T07:48:29","slug":"le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/","title":{"rendered":"Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou"},"content":{"rendered":"

L’objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.<\/h2>\n

Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 le 29 avril 2025 par une fus\u00e9e Vega-C depuis le port spatial de l’Europe \u00e0 Kourou, en Guyane fran\u00e7aise. \u00c0 bord de Biomass se trouve un radar \u00e0 synth\u00e8se d’ouverture en bande P. Sa mission est de collecter des donn\u00e9es sur l’\u00e9volution de nos for\u00eats. Les for\u00eats jouent un r\u00f4le essentiel dans la r\u00e9duction du carbone de notre climat et les informations recueillies donneront un bon aper\u00e7u de ce r\u00f4le.<\/p>\n

La bande P s’\u00e9tend de 225 MHz \u00e0 390 MHz – des ondes longues inhabituelles par rapport aux satellites \u00ab\u00a0normaux\u00a0\u00bb que nous connaissons. La plus grande longueur d’onde du radar est capable de p\u00e9n\u00e9trer la canop\u00e9e des arbres, de cartographier l’ensemble des arbres et de calculer la \u00ab\u00a0biomasse\u00a0\u00bb.<\/p>\n

\"\"<\/p>\n

Le projet a pris du temps. Lars Ulander, professeur de t\u00e9l\u00e9d\u00e9tection radar \u00e0 l’universit\u00e9 de technologie de Chalmers, et quelques coll\u00e8gues ont soumis la proposition il y a vingt ans, mais aujourd’hui le satellite est fonctionnel.<\/p>\n

\u00ab\u00a0Notre id\u00e9e \u00e9tait d’utiliser un type de radar tr\u00e8s particulier pour cartographier les for\u00eats du monde depuis l’espace. L’objectif \u00e9tait de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats\u00a0\u00bb, explique Lars Ulander.<\/em><\/p>\n

Le satellite Biomass op\u00e8re \u00e0 une altitude de 666 km et produit en permanence des cartes mondiales. Gr\u00e2ce \u00e0 ces donn\u00e9es, les chercheurs peuvent am\u00e9liorer les mod\u00e8les et aider les d\u00e9cideurs \u00e0 mettre en \u0153uvre des mesures climatiques plus efficaces.<\/p>\n

\"\"<\/p>\n

Les caract\u00e9riqtisues principales du satellite Biomass sont:<\/p>\n

    \n
  1. \n

    Instrument principal<\/strong> : Le satellite Biomass est \u00e9quip\u00e9 d’un radar \u00e0 synth\u00e8se d’ouverture (SAR) en bande P, un instrument innovant capable de p\u00e9n\u00e9trer les canop\u00e9es foresti\u00e8res pour mesurer les troncs, branches et tiges ligneuses o\u00f9 le carbone est principalement stock\u00e99<\/a>10<\/a>.<\/p>\n<\/li>\n

  2. \n

    Objectif de la mission<\/strong> : La mission Biomass vise \u00e0 fournir les premi\u00e8res mesures compl\u00e8tes de la biomasse foresti\u00e8re mondiale et \u00e0 am\u00e9liorer la compr\u00e9hension du stockage de carbone, de la sant\u00e9 des for\u00eats et des changements temporels des \u00e9cosyst\u00e8mes forestiers11<\/a>.<\/p>\n<\/li>\n

  3. \n

    Orbite<\/strong> : Biomass op\u00e8re sur une orbite h\u00e9liosynchrone quasi circulaire cr\u00e9pusculaire (heure locale de passage au n\u0153ud ascendant de 06:00 heures) \u00e0 une altitude de 666 km, selon les diff\u00e9rentes phases de la mission12<\/a>.<\/p>\n<\/li>\n

  4. \n

    Dur\u00e9e de la mission<\/strong> : Le satellite est con\u00e7u pour une mission d’au moins 5 ans13<\/a>.<\/p>\n<\/li>\n

  5. \n

    Antenne<\/strong> : L’antenne \u00e0 bord de Biomass est bas\u00e9e sur un grand r\u00e9flecteur d\u00e9ployable (12 m d’ouverture projet\u00e9e circulaire) avec un r\u00e9seau d’alimentation d\u00e9cal\u00e9 et un seul faisceau12<\/a>.<\/p>\n<\/li>\n

  6. \n

    Conception et construction<\/strong> : Le satellite Biomass a \u00e9t\u00e9 con\u00e7u et construit par un consortium de plus de 50 entreprises sous la direction d’Airbus UK en tant que ma\u00eetre d’\u0153uvre. De nombreuses entreprises ont des sous-traitants et des fournisseurs9<\/a>.<\/p>\n<\/li>\n

  7. \n

    Contribution scientifique<\/strong> : Les donn\u00e9es renvoy\u00e9es par le satellite devraient \u00e9galement apporter de nouvelles informations \u00e0 d’autres domaines des sciences du climat, comme la mesure de la biomasse des r\u00e9gions d\u00e9sertiques pour trouver des eaux fossiles et de nouvelles sources d’eau dans les r\u00e9gions arides, ainsi que la contribution aux observations de la dynamique des calottes glaciaires, de la g\u00e9ologie du sous-sol et de la topographie des for\u00eats11<\/a>.<\/p>\n<\/li>\n<\/ol>\n

    Suivez le projet sur le site de l’ASE<\/a><\/p>\n

    Source : Chalmers University Universit\u00e9 de Chalmers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    L’objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats. Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 le 29 avril 2025 par une fus\u00e9e Vega-C depuis le port spatial de l’Europe \u00e0 Kourou, en Guyane fran\u00e7aise. \u00c0 bord de Biomass se trouve un radar \u00e0 synth\u00e8se […]<\/p>\n","protected":false},"author":7,"featured_media":478856,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3669,883],"tags":[9654,5082,5561],"domains":[47],"ppma_author":[1139,1153],"class_list":["post-478923","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouvelles","category-technologies","tag-biomasse","tag-esa-fr","tag-satellite-fr","domains-electronique-eci"],"acf":[],"yoast_head":"Le satellite Biomass mesure les arbres \u00e0 666 km d'altitude ...<\/title>\n<meta name=\"description\" content=\"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.\" \/>\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.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le satellite Biomass de l'ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou\" \/>\n<meta property=\"og:description\" content=\"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-02T07:48:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2025\/05\/Screen-Shot-2025-05-01-at-10.15.31.png\" \/>\n\t<meta property=\"og:image:width\" content=\"808\" \/>\n\t<meta property=\"og:image:height\" content=\"860\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Wisse Hettinga, A Delapalisse\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Wisse Hettinga\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/\"},\"author\":{\"name\":\"Wisse Hettinga\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/c6b626c6c65f5e1e7794ce2d17b2ca82\"},\"headline\":\"Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou\",\"datePublished\":\"2025-05-02T07:48:29+00:00\",\"dateModified\":\"2025-05-02T07:48:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/\"},\"wordCount\":615,\"publisher\":{\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#organization\"},\"keywords\":[\"Biomasse\",\"ESA\",\"satellite\"],\"articleSection\":[\"Nouvelles\",\"Technologies\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/\",\"url\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/\",\"name\":\"Le satellite Biomass mesure les arbres \u00e0 666 km d'altitude\",\"isPartOf\":{\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#website\"},\"datePublished\":\"2025-05-02T07:48:29+00:00\",\"dateModified\":\"2025-05-02T07:48:29+00:00\",\"description\":\"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.ecinews.fr\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#website\",\"url\":\"https:\/\/www.eenewseurope.com\/en\/\",\"name\":\"EENewsEurope\",\"description\":\"Just another WordPress site\",\"publisher\":{\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.eenewseurope.com\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#organization\",\"name\":\"EENewsEurope\",\"url\":\"https:\/\/www.eenewseurope.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2022\/02\/logo-1.jpg\",\"contentUrl\":\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2022\/02\/logo-1.jpg\",\"width\":283,\"height\":113,\"caption\":\"EENewsEurope\"},\"image\":{\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/c6b626c6c65f5e1e7794ce2d17b2ca82\",\"name\":\"Wisse Hettinga\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/image\/5dc5f564ca306d7cb8b22735be49a465\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/24a36fe68de56eac2a45cbaf9aa4bb58?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/24a36fe68de56eac2a45cbaf9aa4bb58?s=96&d=mm&r=g\",\"caption\":\"Wisse Hettinga\"}}]}<\/script>","yoast_head_json":{"title":"Le satellite Biomass mesure les arbres \u00e0 666 km d'altitude ...","description":"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923\/","og_locale":"fr_FR","og_type":"article","og_title":"Le satellite Biomass de l'ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou","og_description":"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.","og_url":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923\/","og_site_name":"EENewsEurope","article_published_time":"2025-05-02T07:48:29+00:00","og_image":[{"width":808,"height":860,"url":"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2025\/05\/Screen-Shot-2025-05-01-at-10.15.31.png","type":"image\/png"}],"author":"Wisse Hettinga, A Delapalisse","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Wisse Hettinga","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#article","isPartOf":{"@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/"},"author":{"name":"Wisse Hettinga","@id":"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/c6b626c6c65f5e1e7794ce2d17b2ca82"},"headline":"Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou","datePublished":"2025-05-02T07:48:29+00:00","dateModified":"2025-05-02T07:48:29+00:00","mainEntityOfPage":{"@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/"},"wordCount":615,"publisher":{"@id":"https:\/\/www.eenewseurope.com\/en\/#organization"},"keywords":["Biomasse","ESA","satellite"],"articleSection":["Nouvelles","Technologies"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/","url":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/","name":"Le satellite Biomass mesure les arbres \u00e0 666 km d'altitude","isPartOf":{"@id":"https:\/\/www.eenewseurope.com\/en\/#website"},"datePublished":"2025-05-02T07:48:29+00:00","dateModified":"2025-05-02T07:48:29+00:00","description":"L'objectif est de comprendre comment les for\u00eats affectent le climat et comment le changement climatique affecte les for\u00eats.","breadcrumb":{"@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.ecinews.fr\/fr\/le-satellite-biomass-de-lesa-a-ete-lance-depuis-kourou\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.ecinews.fr\/fr\/"},{"@type":"ListItem","position":2,"name":"Le satellite Biomass de l’ESA a \u00e9t\u00e9 lanc\u00e9 depuis Kourou"}]},{"@type":"WebSite","@id":"https:\/\/www.eenewseurope.com\/en\/#website","url":"https:\/\/www.eenewseurope.com\/en\/","name":"EENewsEurope","description":"Just another WordPress site","publisher":{"@id":"https:\/\/www.eenewseurope.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.eenewseurope.com\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.eenewseurope.com\/en\/#organization","name":"EENewsEurope","url":"https:\/\/www.eenewseurope.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.eenewseurope.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2022\/02\/logo-1.jpg","contentUrl":"https:\/\/www.ecinews.fr\/wp-content\/uploads\/2022\/02\/logo-1.jpg","width":283,"height":113,"caption":"EENewsEurope"},"image":{"@id":"https:\/\/www.eenewseurope.com\/en\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/c6b626c6c65f5e1e7794ce2d17b2ca82","name":"Wisse Hettinga","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.eenewseurope.com\/en\/#\/schema\/person\/image\/5dc5f564ca306d7cb8b22735be49a465","url":"https:\/\/secure.gravatar.com\/avatar\/24a36fe68de56eac2a45cbaf9aa4bb58?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/24a36fe68de56eac2a45cbaf9aa4bb58?s=96&d=mm&r=g","caption":"Wisse Hettinga"}}]}},"authors":[{"term_id":1139,"user_id":7,"is_guest":0,"slug":"wisse-hettinga","display_name":"Wisse Hettinga","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/24a36fe68de56eac2a45cbaf9aa4bb58?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":1153,"user_id":34,"is_guest":0,"slug":"adelapalisse","display_name":"A Delapalisse","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/ad45a8c5da24bc9c7c4940dd1c48a695?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923"}],"collection":[{"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/comments?post=478923"}],"version-history":[{"count":0,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/478923\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/media\/478856"}],"wp:attachment":[{"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/media?parent=478923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/categories?post=478923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/tags?post=478923"},{"taxonomy":"domains","embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/domains?post=478923"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/ppma_author?post=478923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}