{"id":419,"date":"2017-12-05T12:27:00","date_gmt":"2017-12-05T11:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/earth_s_air_pollution_seen_from_orbit\/"},"modified":"2026-10-08T00:27:59","modified_gmt":"2026-10-07T22:27:59","slug":"earth_s_air_pollution_seen_from_orbit","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/earth_s_air_pollution_seen_from_orbit\/","title":{"rendered":"La pollution atmosph\u00e9rique visible en orbite"},"content":{"rendered":"<div class=\"lede\">\n<p>Apr\u00e8s son lancement, qui a eu lieu le 13 octobre dernier, le satellite Sentinelle 5P de l\u2019ESA est actuellement en phase de tests op\u00e9rationnels. M\u00eame si sa mission n\u2019a pas encore officiellement commenc\u00e9, il collecte d\u00e9j\u00e0 de pr\u00e9cieuses donn\u00e9es qui vont nous aider \u00e0 mieux comprendre notre plan\u00e8te !<\/p>\n<\/div>\n<p>Le satellite Sentinelle 5P a \u00e9t\u00e9 con\u00e7u pour \u00e9tudier l\u2019atmosph\u00e8re (la couche d\u2019air qui entoure notre plan\u00e8te). L\u2019atmosph\u00e8re, que nous respirons chaque jour, est un composant essentiel des syst\u00e8mes climatiques de la Terre. Mieux la conna\u00eetre est donc d\u2019une importance capitale ! Sentinelle 5P est sp\u00e9cialis\u00e9 dans l\u2019analyse de la pollution atmosph\u00e9rique. Les premi\u00e8res images que nous avons re\u00e7ues rentrent dans le cadre de cette mission.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2421\" data-credit=\"KNMI\/ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/12\/Sentinel-5P_created_this_map_of_air_pollution_levels_over_Europe\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/12\/sentinel-5p_created_this_map_of_air_pollution_levels_over_europe\/17883473-2-eng-GB\/Sentinel-5P_created_this_map_of_air_pollution_levels_over_Europe.jpg\" alt=\"Sentinel-5P created this map of air pollution levels over Europe\"><figcaption>Sentinel-5P a r\u00e9alis\u00e9 cette carte des niveaux de pollution atmosph\u00e9rique en Europe<\/figcaption><\/figure>\n<p>Le satellite a d\u00e9tect\u00e9 d\u2019importants niveaux d\u2019oxyde d\u2019azote en Europe. L\u2019oxyde d\u2019azote est un gaz \u00e9mis par les bus, les camions et d\u2019autres v\u00e9hicules. Il est \u00e9galement produit lors de la combustion de carburants fossiles comme le charbon. Sentinelle 5P a relev\u00e9 des concentrations \u00e9lev\u00e9es de ce gaz n\u00e9faste \u00e0 plusieurs endroits des Pays-Bas, dans la r\u00e9gion de la Ruhr en Allemagne occidentale, dans la vall\u00e9e italienne du P\u00f4 et dans plusieurs zones de l\u2019Espagne.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"356\" data-credit=\"SRON\/ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/12\/Red_shows_the_densest_areas_of_carbon_monoxide\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/12\/red_shows_the_densest_areas_of_carbon_monoxide\/17892723-2-eng-GB\/Red_shows_the_densest_areas_of_carbon_monoxide.jpg\" alt=\"Red shows the densest areas of carbon monoxide\"><figcaption>La couleur rouge indique les zones o\u00f9 la concentration en monoxyde de carbone est la plus \u00e9lev\u00e9e<\/figcaption><\/figure>\n<p>Le monoxyde de carbone est un autre gaz qui peut s\u2019av\u00e9rer dangereux si nous en respirons trop. Sentinelle 5P a cr\u00e9\u00e9 une carte mondiale des niveaux de monoxyde de carbone et en a trouv\u00e9 d\u2019importantes concentrations en Asie, en Afrique et en Am\u00e9rique du Sud. La pollution de l\u2019air est par ailleurs critique en Inde, o\u00f9 l\u2019on trouve un grand nombre d\u2019usines.<\/p>\n<p>Le satellite Sentinelle 5P nous transmet des relev\u00e9s tr\u00e8s pr\u00e9cis gr\u00e2ce \u00e0 Tropomi, son capteur de haute technologie qui lui permet de cartographier les polluants atmosph\u00e9riques \u00e0 travers l\u2019ensemble de notre plan\u00e8te. D\u00e8s que nous conna\u00eetrons avec pr\u00e9cision l\u2019ampleur de la pollution de l\u2019air, nous pourrons prendre des mesures appropri\u00e9es pour r\u00e9duire cette pollution.<\/p>\n<p>Stefan Dech est le directeur des programmes d\u2019observation de la Terre du Centre allemand pour l\u2019a\u00e9ronautique et l\u2019a\u00e9rospatiale (DLR). Il se d\u00e9clare tr\u00e8s satisfait des performances du satellite Sentinelle 5P : \u00ab Ces premi\u00e8res images sont stup\u00e9fiantes, d\u2019autant plus que le satellite se trouve encore dans les \u00e9tapes initiales de son d\u00e9ploiement op\u00e9rationnel. L\u2019instrument Tropomi du satellite r\u00e9pond \u00e0 toutes ses promesses et va nous fournir des images de la pollution atmosph\u00e9rique dans une r\u00e9solution encore jamais vue. \u00bb<\/p>\n<p>Que pensez-vous de la qualit\u00e9 de l\u2019air \u00e0 l\u2019endroit o\u00f9 vous vivez ? Selon vous, le satellite Sentinelle 5P pourrait-il y trouver des traces de pollution ?<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> Sentinel-5P est capable de balayer l'ensemble de la Terre \u00e0 la recherche de pollution atmosph\u00e9rique une fois toutes les 24 heures !<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s Sentinel-5P satellite was launched into space on 13 October, and is still undergoing tests before its mission can begin properly. However, it is already gathering exceptional data that is [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/12\/sentinel-5p_is_in_orbit_around_earth\/17896793-2-eng-GB\/Sentinel-5P_is_in_orbit_around_Earth.jpg","esa_banner_description":"Sentinel-5P is in orbit around Earth","esa_banner_credit":"ESA\/ATG medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/12\/Sentinel-5P_is_in_orbit_around_Earth","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-419","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=419"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/419\/revisions"}],"predecessor-version":[{"id":4459,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/419\/revisions\/4459"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=419"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=419"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=419"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=419"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=419"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=419"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=419"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}