{"id":400,"date":"2005-10-17T12:07:00","date_gmt":"2005-10-17T10:07:00","guid":{"rendered":"https:\/\/kids.esa.int\/aeolus_esa_s_wind_watcher\/"},"modified":"2026-10-08T00:27:44","modified_gmt":"2026-10-07T22:27:44","slug":"aeolus_esa_s_wind_watcher","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/aeolus_esa_s_wind_watcher\/","title":{"rendered":"Aeolus, ESAn tuulenseuranta-satelliitti"},"content":{"rendered":"<div class=\"lede\">\n<p>Tuulen nopeuden ja suunnan mittaaminen on helppoa yhdess\u00e4 paikassa maanpinnalla, mutta millaiset tuulet puhaltavat eri korkeuksilla koko maapallon alueella? Upea uusi eurooppalainen satelliitti nimelt\u00e4 Aeolus antaa pian vastauksen t\u00e4h\u00e4n kysymykseen.<\/p>\n<\/div>\n<p>T\u00e4m\u00e4 avaruusluotain, jota yleens\u00e4 kutsutaan yksinkertaisesti nimell\u00e4 \u201cAeolus\u201d, on nimetty kreikkalaisen mytologian jumalan mukaan, joka nimettiin \u201ctuulien vartijaksi\u201d. Vuonna 2008 laukaisunsa suunnitellun avaruusluotaimen on tarkoitus viett\u00e4\u00e4 kolme vuotta tarkkailemalla Maata ja mittaamalla planeettamme ymp\u00e4rill\u00e4 puhaltavia tuulia.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3000\" data-credit=\"ESA\/AOES Medialab\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/09\/Aeolus_with_laser_beam2\" 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\/2005\/09\/aeolus_with_laser_beam2\/17866749-3-eng-GB\/Aeolus_with_laser_beam.jpg\" alt=\"Aeolus with laser beam\"><figcaption>Aeolus ja laser s\u00e4de<\/figcaption><\/figure>\n<p>ESAn tuulitutkimuslaitteessa on yksi suuri mittalaite (ALADIN), joka tutkii ilmakeh\u00e4n kaikkia kerroksia 30 km:n korkeuteen asti. ALADIN koostuu tehokkaasta laserista ja suuresta kaukoputkesta, joka on kytketty eritt\u00e4in herkk\u00e4\u00e4n vastaanottimeen. Laser l\u00e4hett\u00e4\u00e4 ilmakeh\u00e4\u00e4n lyhyit\u00e4, voimakkaita valopulsseja. T\u00e4m\u00e4 valo hajoaa kaasumolekyylien, p\u00f6lyhiukkasten ja vesipisaroiden vaikutuksesta.<\/p>\n<p>Osa takaisinsironneesta valosta ker\u00e4t\u00e4\u00e4n avaruusaluksen kaukoputkella ja l\u00e4hetet\u00e4\u00e4n aluksella olevaan vastaanottimeen. Signaalia analysoimalla voidaan laskea liikkuvan ilman nopeus ja suunta ilmakeh\u00e4n eri korkeuksilla.<\/p>\n<\/p>\n<p>Tulevaisuus on jo t\u00e4\u00e4ll\u00e4: laserit. Tekij\u00e4noikeus: ESA.<\/p>\n<p>Tarkkojen tuulihavaintojen saamiseksi monet mittaustulokset on keskiarvoitettava. Jokaista 700 laserpulssia kohti saadaan yksi tuuliprofiili. Aeolus-satelliittiin tallennetut tiedot l\u00e4hetet\u00e4\u00e4n 90 minuutin v\u00e4lein maanp\u00e4\u00e4lliseen asemalle Svalbardissa, Norjassa. T\u00e4m\u00e4 valtava tietom\u00e4\u00e4r\u00e4 auttaa paitsi parantamaan s\u00e4\u00e4ennusteita my\u00f6s edist\u00e4m\u00e4\u00e4n pitk\u00e4n aikav\u00e4lin ilmastotutkimusta.<\/p>\n<nav class=\"related\" aria-label=\"Aiheeseen liittyv\u00e4t\">\n<h2 class=\"related__heading\">Aiheeseen liittyv\u00e4t<\/h2>\n<div class=\"grid related__grid\">\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"http:\/\/esamultimedia.esa.int\/docs\/build_your_own_aeolus_model.pdf\" target=\"_blank\" rel=\"noopener\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Aeolus-paperimalli<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<\/div>\n<\/nav>","protected":false},"excerpt":{"rendered":"<p>It is easy to measure wind speed and direction at one place on the ground, but what are the winds like at different heights over the entire Earth? A remarkable [&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\/2005\/06\/aeolus\/17899533-2-eng-GB\/Aeolus.jpg","esa_banner_description":"Aeolus","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/06\/Aeolus","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":[64,42,10],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-400","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/400","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=400"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/400\/revisions"}],"predecessor-version":[{"id":4443,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/400\/revisions\/4443"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=400"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=400"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=400"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=400"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=400"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=400"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=400"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}