{"id":451,"date":"2017-03-06T12:08:00","date_gmt":"2017-03-06T11:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellite_images_warn_antarctic_scientists_to_evacuate_their_base\/"},"modified":"2026-10-08T00:28:21","modified_gmt":"2026-10-07T22:28:21","slug":"satellite_images_warn_antarctic_scientists_to_evacuate_their_base","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/satellite_images_warn_antarctic_scientists_to_evacuate_their_base\/","title":{"rendered":"Satelliittikuvat kehottavat Etel\u00e4mantereen tutkijoita evakuoimaan tukikohtansa!"},"content":{"rendered":"<div class=\"lede\">\n<p>Syv\u00e4ll\u00e4 Antarktikassa sijaitsee huipputeknologinen laboratorio nimelt\u00e4 Halley VI. T\u00e4\u00e4lt\u00e4 k\u00e4sin tutkijat tutkivat maailmanlaajuisia ongelmia, kuten ilmastonmuutosta ja merenpinnan nousua. Kaksi ESA:n satelliittia, Sentinel-1 ja Sentinel-2, tarkkailivat Halley VI -tukikohdan ymp\u00e4rist\u00f6\u00e4 kiertoradalta. Ne havaitsivat j\u00e4\u00e4h\u00e4n ilmestyneen suuren halkeaman! Koska halkeama l\u00f6ydettiin lokakuussa, sille annettiin lempinimi Halloween-halkeama. Tilanne oli vaarantamassa tutkijoiden hengen, joten p\u00e4\u00e4tettiin evakuoida heid\u00e4t ja sulkea Halley VI talveksi.<\/p>\n<\/div>\n<p>On melko tavallista, ett\u00e4 j\u00e4\u00e4hyllyille syntyy pieni\u00e4 halkeamia, ja toisinaan palasia irtoaa reunalta mereen ja muuttuu j\u00e4\u00e4vuoriksi. Mutta Sentinel-satelliittien havaitsema Halloween Crack oli suuri ja kasvoi koko ajan \u2013 jopa 600 metri\u00e4 p\u00e4iv\u00e4ss\u00e4! Halley VI -laboratorio on itse asiassa suunniteltu siten, ett\u00e4 se voidaan siirt\u00e4\u00e4 pois j\u00e4\u00e4halkeamien l\u00e4heisyydest\u00e4, mutta Halloween-halkeama kulki siksakkia vaikeasti ennustettavalla tavalla, mink\u00e4 vuoksi tutkijoiden pysyminen paikalla oli eritt\u00e4in vaarallista. Heid\u00e4n turvallisuutensa vuoksi heid\u00e4t siirrettiin pois laboratoriosta turvaan.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/02\/Halley_VI\" 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\/02\/halley_vi\/18248141-2-eng-GB\/Halley_VI.jpg\" alt=\"The entire Halley VI station has now been evacuated\"><figcaption>Koko Halley VI -asema on nyt evakuoitu<\/figcaption><\/figure>\n<p>Yleens\u00e4 Halley VI:ssa asuu ja ty\u00f6skentelee kes\u00e4kuukausina noin 70 ihmist\u00e4. Talvella, jolloin l\u00e4mp\u00f6tila voi laskea jopa -55 \u00b0C:een, siell\u00e4 on alle 20 ihmist\u00e4. T\u00e4m\u00e4 on itse asiassa ensimm\u00e4inen talvi, jolloin tukikohta on ollut kokonaan suljettuna!<\/p>\n<p>Sen lis\u00e4ksi, ett\u00e4 Sentinel-satelliittien ottamat kuvat saattavat pelastaa tutkijoiden hengen, ne auttavat meit\u00e4 oppimaan lis\u00e4\u00e4 j\u00e4\u00e4hyllyist\u00e4 sek\u00e4 siit\u00e4, miten ne kasvavat, kutistuvat ja halkeilevat.<\/p>\n<p>Mielenkiintoinen fakta: Sentinel-1:ss\u00e4 on tutkakuvausj\u00e4rjestelm\u00e4, jonka ansiosta se voi ottaa kuvia jopa pimein\u00e4 talvikuukausina, jolloin valoa ei ole tarpeeksi tavallisten valokuvien ottamiseen.<\/p>","protected":false},"excerpt":{"rendered":"<p>Deep in Antarctica is a cutting-edge laboratory called Halley VI. From here, scientists study global problems such as climate change and rising sea-levels. Two ESA satellites, Sentinel-1 and Sentinel-2, were [&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\/02\/sentinel-1_monitoring\/17884546-2-eng-GB\/Sentinel-1_monitoring.png","esa_banner_description":"Sentinel satellites scan the Earth","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/02\/Sentinel-1_monitoring","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-451","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\/451","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=451"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/451\/revisions"}],"predecessor-version":[{"id":4487,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/451\/revisions\/4487"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=451"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=451"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=451"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=451"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=451"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=451"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=451"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}