{"id":756,"date":"2012-03-01T10:43:00","date_gmt":"2012-03-01T09:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/happy_birthday_envisat\/"},"modified":"2026-10-08T00:31:55","modified_gmt":"2026-10-07T22:31:55","slug":"happy_birthday_envisat","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/happy_birthday_envisat\/","title":{"rendered":"Hyv\u00e4\u00e4 syntym\u00e4p\u00e4iv\u00e4\u00e4, Envisat!"},"content":{"rendered":"<div class=\"lede\">\n<p>Kymmenen vuotta sitten, 1. maaliskuuta 2002, kaikkien aikojen suurin maapallon havainnointisatelliitti laukaistiin Kourousta, Ranskan Guayanasta. T\u00e4m\u00e4 kahdeksan tonnin painoinen satelliitti, nimelt\u00e4\u00e4n Envisat, on nyt kiert\u00e4nyt maapallon yli 50 000 kertaa. Kymmenen kehittyneen mittauslaitteen avulla se tarkkailee ja valvoo jatkuvasti maapallon maapintaa, ilmakeh\u00e4\u00e4, valtameri\u00e4 ja j\u00e4\u00e4peitteit\u00e4.<\/p>\n<\/div>\n<p>Envisatin erilaiset mittauslaitteet ovat antaneet meille mahdollisuuden oppia planeetastamme asioita, joita emme olisi koskaan tienneet ilman sit\u00e4. Esimerkiksi viime kes\u00e4n\u00e4 Envisatin tutka havaitsi enn\u00e4tyksellisen pienen merij\u00e4\u00e4peitteen arktisella alueella. Muiden laitteiden avulla olemme voineet havaita reiki\u00e4 planeetan ohenevassa otsonikerroksessa sek\u00e4 saasteita suurten teollisuuskaupunkien yll\u00e4 ja palavissa metsiss\u00e4.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA\/EJR-Quartz\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/12\/Envisat_for_Schools_Animation2\" 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\/2009\/12\/envisat_for_schools_animation2\/17868043-3-eng-GB\/Envisat_for_Schools_Animation.jpg\" alt=\"\"><\/figure>\n<p>Envisat tarjoaa my\u00f6s mahdollisuuden saada lis\u00e4tietoa ilmastonmuutoksesta sek\u00e4 maapallon maa- ja meril\u00e4mp\u00f6tiloista. Sen avulla voimme kartoittaa merij\u00e4\u00e4t\u00e4 ja seurata \u00f6ljyvuotoja.<\/p>\n<p>T\u00e4m\u00e4 10 vuotta vanha satelliitti jatkaa kaikkien n\u00e4iden t\u00e4rkeiden maapallon havainnointitietojen toimittamista meille ainakin vuoteen 2013 asti. Siihen menness\u00e4 seuraavan sukupolven satelliitit \u2013 Sentinel-satelliitit \u2013 ovat t\u00e4ysin toimintakunnossa ja ottavat haltuunsa roolin maapallon j\u00e4ttim\u00e4isen\u00e4 silm\u00e4n\u00e4 taivaalla!<\/p>","protected":false},"excerpt":{"rendered":"<p>Ten years ago, on 1 March 2002, the largest Earth observation satellite ever built was launched from Kourou , French Guiana. This eight-tonne satellite, called Envisat, has now circled the [&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\/2012\/03\/10birthday2\/18249324-2-eng-GB\/10birthday.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/03\/10birthday2","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-756","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\/fi\/wp-json\/wp\/v2\/posts\/756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=756"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/756\/revisions"}],"predecessor-version":[{"id":4666,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/756\/revisions\/4666"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=756"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=756"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=756"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=756"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=756"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=756"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=756"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}