{"id":1072,"date":"2010-02-03T15:55:00","date_gmt":"2010-02-03T14:55:00","guid":{"rendered":"https:\/\/kids.esa.int\/first_satellite_maps_of_haiti_earthquake\/"},"modified":"2026-10-08T00:35:38","modified_gmt":"2026-10-07T22:35:38","slug":"first_satellite_maps_of_haiti_earthquake","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/first_satellite_maps_of_haiti_earthquake\/","title":{"rendered":"Ensimm\u00e4iset satelliittikuvat Haitin maanj\u00e4ristyksest\u00e4"},"content":{"rendered":"
\n

Tutkijat eiv\u00e4t viel\u00e4 kykene ennustamaan katastrofaalisia maanj\u00e4ristyksi\u00e4. Satelliittiteknologia voi kuitenkin olla suureksi avuksi pelastushenkil\u00f6st\u00f6lle suuren maanj\u00e4ristyksen j\u00e4lkeen, kuten sen j\u00e4lkeen, joka koetteli Haitin saarta 12. tammikuuta. Magneitudiltaan 7 ollut j\u00e4ristys iski Haitin p\u00e4\u00e4kaupunkiin Port-au-Princeen ja sen l\u00e4hialueille aiheuttaen tuhansia uhreja ja laajoja rakennusvaurioita.<\/p>\n<\/div>\n

T\u00e4llaisen tuhoisan tapahtuman j\u00e4lkeen olemassa olevat kartat vanhentuvat yht\u00e4kki\u00e4, mik\u00e4 vaikeuttaa entisest\u00e4\u00e4n kent\u00e4ll\u00e4 ty\u00f6skentelevien ty\u00f6ntekij\u00f6iden toimintaa. Satelliittikuvien avulla voidaan kuitenkin saada nopeasti k\u00e4ytt\u00f6\u00f6n ajantasaiset n\u00e4kym\u00e4t vahingoittuneista alueista.<\/p>\n

Haitin tapauksessa avaruudesta otetut optiset ja tutkakuvat olivat pian saatavilla. Tutkasatelliittien etuna on, ett\u00e4 ne n\u00e4kev\u00e4t pilvien l\u00e4pi ja pystyv\u00e4t kuvaamaan maanpintaa y\u00f6ll\u00e4. Tutkakuvien avulla voidaan tunnistaa vaaratilanteita, kuten maanvy\u00f6rymi\u00e4, joita maanj\u00e4ristykset saattavat laukaista. Pitk\u00e4ll\u00e4 aikav\u00e4lill\u00e4 tutkatietoja voidaan k\u00e4ytt\u00e4\u00e4 my\u00f6s pinnanmuutosten kartoittamiseen ja ne auttavat tutkijoita ymm\u00e4rt\u00e4m\u00e4\u00e4n t\u00e4llaisia tapahtumia.<\/p>\n

Kansainv\u00e4lisen satelliittij\u00e4rjestelm\u00e4n, johon kuuluvat muun muassa ESA:n ERS-2- ja Envisat-satelliitit, ottamia kuvia toimitetaan ilmaiseksi Haitin pelastusjoukoille. V\u00e4litt\u00f6m\u00e4sti katastrofin j\u00e4lkeen otettuja kuvia k\u00e4ytet\u00e4\u00e4n alueen h\u00e4t\u00e4karttojen laatimiseen. N\u00e4iden karttojen avulla tunnistetaan pahiten k\u00e4rsineet alueet ja m\u00e4\u00e4ritet\u00e4\u00e4n avustus- ja pelastushenkil\u00f6st\u00f6n kulkukelpoiset reitit. Niiden avulla voidaan my\u00f6s paikantaa alueet, jotka soveltuvat avustuskeskusten perustamiseen ja joissa voidaan tarjota l\u00e4\u00e4ketieteellist\u00e4 apua ja suojaa.<\/p>","protected":false},"excerpt":{"rendered":"

Scientists are not yet able to predict catastrophic earthquakes. However, satellite technology can be a great help to rescue workers after a major quake, such as the one which hit […]<\/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\/2010\/01\/damage_around_port-au-prince_haiti2\/17876406-2-eng-GB\/Damage_around_Port-au-Prince_Haiti.jpg","esa_banner_description":"Damage around Port-au-Prince, Haiti","esa_banner_credit":"CNES, JAXA, GeoEye, SERTIT","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/01\/Damage_around_Port-au-Prince_Haiti2","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":[42,10,59],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1072","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-natural-disasters"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1072","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=1072"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1072\/revisions"}],"predecessor-version":[{"id":2215,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1072\/revisions\/2215"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=1072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=1072"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=1072"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=1072"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=1072"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=1072"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=1072"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=1072"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=1072"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=1072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}