{"id":16472,"date":"2026-01-21T15:04:41","date_gmt":"2026-01-21T15:04:41","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=16472"},"modified":"2026-01-21T15:04:41","modified_gmt":"2026-01-21T15:04:41","slug":"landsat-mission-40-years-earth-observation","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/earth-science\/landsat-mission-40-years-earth-observation\/","title":{"rendered":"40 \u00e9ve figyeli a F\u00f6ldet a NASA Landsat-misszi\u00f3ja \u2013 leny\u0171g\u00f6z\u0151 m\u0171holdfot\u00f3k \u00e9s kl\u00edmav\u00e9delmi adatok"},"content":{"rendered":"<h2 class=\"wp-block-heading\">A NASA Landsat-k\u00fcldet\u00e9se: 40 \u00e9ve figyeli a F\u00f6ldet<\/h2>\n\n<h2 class=\"wp-block-heading\">A F\u00f6ld felsz\u00edn\u00e9nek folyamatos kr\u00f3nik\u00e1ja<\/h2>\n\n<p>A NASA Landsat-k\u00fcldet\u00e9se a F\u00f6ld felsz\u00edn\u00e9ben t\u00f6rt\u00e9n\u0151 v\u00e1ltoz\u00e1sok leghosszabb, folyamatos, \u0171rb\u0151l k\u00e9sz\u00edtett feljegyz\u00e9s\u00e9t szolg\u00e1ltatja. 1972 \u00f3ta a Landsat-m\u0171holdak k\u00e9peken r\u00f6gz\u00edtik bolyg\u00f3nkat, felt\u00e1rva az emberi tev\u00e9kenys\u00e9gek \u00e9s term\u00e9szeti katasztr\u00f3f\u00e1k k\u00f6rnyezeti hat\u00e1sait.<\/p>\n\n<p>A Landsat-sorozat leg\u00fajabb tagj\u00e1t, a Landsat 8-at 2013-ban ind\u00edtott\u00e1k fel, \u00e9s folytatja a F\u00f6ld felsz\u00edn\u00e9nek v\u00e1ltoz\u00e1sait k\u00f6vet\u0151 k\u00fcldet\u00e9st. A Landsat 8-n\u00e1l m\u00e9g prec\u00edzebb \u00e9rz\u00e9kel\u0151k vannak, mint el\u0151dein\u00e9l, \u00edgy r\u00e9szletesebb \u00e9s pontosabb k\u00f6rnyezeti v\u00e1ltoz\u00e1s-k\u00f6vet\u00e9sre k\u00e9pes.<\/p>\n\n<h2 class=\"wp-block-heading\">Landsat 8: a Landsat-adatfolytonoss\u00e1gi k\u00fcldet\u00e9s<\/h2>\n\n<p>A Landsat 8, m\u00e1s n\u00e9ven Landsat Data Continuity Mission, egy nagym\u00e9ret\u0171 \u0171rszonda, amely mintegy 700 kilom\u00e9teres magass\u00e1gban kering a F\u00f6ld k\u00f6r\u00fcl. Olyan \u00e9rz\u00e9kel\u0151kkel van felszerelve, amelyek 185 kilom\u00e9ter sz\u00e9les s\u00e1vban, egy pillanatfelv\u00e9tel sor\u00e1n 7000 \u00e9rz\u00e9kel\u0151t haszn\u00e1lva r\u00f6gz\u00edtik a F\u00f6ld k\u00e9p\u00e9t s\u00e1venk\u00e9nt.<\/p>\n\n<p>A Landsat 8 felv\u00e1ltotta az \u00f6reged\u0151 Landsat 5-\u00f6t \u00e9s Landsat 7-et, amelyek \u00e9vtizedekig szolg\u00e1ltak \u00e9rt\u00e9kes adatokkal, de \u00fczemidej\u00fck a v\u00e9g\u00e9hez k\u00f6zeledett. A Landsat 5 majdnem h\u00e1rom \u00e9vtizeden \u00e1t m\u0171k\u00f6d\u00f6tt, j\u00f3val t\u00fall\u00e9pve eredeti, h\u00e1rom\u00e9ves terv\u00e9rt\u00e9k\u00e9t.<\/p>\n\n<h2 class=\"wp-block-heading\">A F\u00f6ld felsz\u00edn\u00e9nek v\u00e1ltoz\u00e1sai<\/h2>\n\n<p>A Landsat-k\u00fcldet\u00e9s kulcsszerepet j\u00e1tszik a F\u00f6ld felsz\u00edn\u00e9nek v\u00e1ltoz\u00e1sainak nyomon k\u00f6vet\u00e9s\u00e9ben, t\u00f6bbek k\u00f6z\u00f6tt:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>v\u00edz- \u00e9s erd\u0151bor\u00edt\u00e1s<\/li>\n<li>v\u00e1rosiasod\u00e1s<\/li>\n<li>erd\u0151irt\u00e1s<\/li>\n<li>term\u00e9szeti katasztr\u00f3f\u00e1k (pl. f\u00f6ldreng\u00e9sek, hurrik\u00e1nok)<\/li>\n<li>kl\u00edmav\u00e1ltoz\u00e1s hat\u00e1sai (pl. gleccserek olvad\u00e1sa, tengerszint-emelked\u00e9s)<\/li>\n<\/ul>\n\n<p>A Landsat-adatokat tud\u00f3sok, d\u00f6nt\u00e9shoz\u00f3k \u00e9s f\u00f6ldhaszn\u00e1lati szakemberek haszn\u00e1lj\u00e1k k\u00f6rnyezeti probl\u00e9m\u00e1k \u2013 p\u00e9ld\u00e1ul kl\u00edmav\u00e1ltoz\u00e1s, v\u00edzhi\u00e1ny, erd\u0151irt\u00e1s \u2013 meg\u00e9rt\u00e9s\u00e9re \u00e9s kezel\u00e9s\u00e9re.<\/p>\n\n<h2 class=\"wp-block-heading\">Szakad\u00e1s a Landsat-\u00f6r\u00f6kfolyamban<\/h2>\n\n<p>A Landsat-adatsorban keletkez\u0151 szakad\u00e1s katasztrof\u00e1lis lenne a k\u00f6rnyezetfigyel\u00e9s szempontj\u00e1b\u00f3l. 1993-ban a Landsat 6 nem \u00e9rte el a p\u00e1ly\u00e1t, ami r\u00e9st okozott az adatsorban. Hasonl\u00f3 szakad\u00e1s k\u00f6vetkezhetne be, ha a Landsat 8 meghib\u00e1sodna, vagy id\u0151ben nem \u00e1llna rendelkez\u00e9sre ut\u00f3dm\u0171hold a folytonoss\u00e1g fenntart\u00e1s\u00e1hoz.<\/p>\n\n<h2 class=\"wp-block-heading\">Landsat: m\u0171v\u00e9szet \u00e9s tudom\u00e1ny<\/h2>\n\n<p>Tudom\u00e1nyos \u00e9rt\u00e9k\u00e9n t\u00fal a Landsat-k\u00e9pek meg is ragadt\u00e1k a k\u00f6zv\u00e9lem\u00e9ny k\u00e9pzelet\u00e9t. Az Amerikai Posta b\u00e9lyegsorozatot adott ki a m\u0171hold leny\u0171g\u00f6z\u0151 felv\u00e9telei alapj\u00e1n. A Landsat-k\u00e9peket m\u0171v\u00e9szetben, oktat\u00e1sban \u00e9s ismeretterjeszt\u00e9sben is haszn\u00e1lj\u00e1k a k\u00f6rnyezeti k\u00e9rd\u00e9sek ir\u00e1nti figyelemfelkelt\u00e9sre.<\/p>\n\n<h2 class=\"wp-block-heading\">Landsat 8 fell\u00f6v\u00e9se \u00e9s \u00e9l\u0151 k\u00f6zvet\u00edt\u00e9se<\/h2>\n\n<p>A Landsat 8-at 2013. febru\u00e1r 11-\u00e9n, 10:00-kor PST-kor (13:00 EST) ind\u00edtott\u00e1k a kaliforniai Vandenberg l\u00e9git\u00e1maszpontr\u00f3l. K\u00f6vetheted a Landsat-k\u00fcldet\u00e9st a Twitteren, vagy n\u00e9zheted a fell\u00f6v\u00e9st \u00e9l\u0151ben a NASA honlapj\u00e1n.<\/p>\n\n<h2 class=\"wp-block-heading\">A Landsat \u00f6r\u00f6ks\u00e9ge<\/h2>\n\n<p>A Landsat-k\u00fcldet\u00e9s forradalmas\u00edtotta a F\u00f6ld felsz\u00edn\u00e9r\u0151l \u00e9s az azon v\u00e9gbemen\u0151 v\u00e1ltoz\u00e1sokr\u00f3l alkotott ismereteinket. A Landsat-adatokat haszn\u00e1lt\u00e1k az Amazonas es\u0151erd\u0151inek irt\u00e1s\u00e1ra, az antarktiszi gleccserek visszah\u00faz\u00f3d\u00e1s\u00e1ra \u00e9s a vil\u00e1g v\u00e1rosi ter\u00fcleteinek n\u00f6veked\u00e9s\u00e9re val\u00f3 figyel\u00e9sre.<\/p>\n\n<p>Ahogy a Landsat 8 folytatja k\u00fcldet\u00e9s\u00e9t, m\u00e9g \u00e9rt\u00e9kesebb adatokkal l\u00e1tja el a tud\u00f3sokat \u00e9s a d\u00f6nt\u00e9shoz\u00f3kat a 21. sz\u00e1zad k\u00f6rnyezeti kih\u00edv\u00e1sainak kezel\u00e9s\u00e9hez.<\/p>","protected":false},"excerpt":{"rendered":"<p>A NASA Landsat-k\u00fcldet\u00e9se: 40 \u00e9ve figyeli a F\u00f6ldet A F\u00f6ld felsz\u00edn\u00e9nek folyamatos kr\u00f3nik\u00e1ja A NASA Landsat-k\u00fcldet\u00e9se a F\u00f6ld felsz\u00edn\u00e9ben t\u00f6rt\u00e9n\u0151 v\u00e1ltoz\u00e1sok leghosszabb, folyamatos, \u0171rb\u0151l k\u00e9sz\u00edtett feljegyz\u00e9s\u00e9t szolg\u00e1ltatja. 1972 \u00f3ta a&hellip;<\/p>\n","protected":false},"author":2,"featured_media":25231,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[34,99,876,8012,890,21805,21804,1557,1945,2046,282],"class_list":["post-16472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earth-science","tag-climate-change","tag-lifescienceart","tag-deforestation","tag-earth-observation","tag-environmental-monitoring","tag-land-use-change","tag-landsat","tag-remote-sensing","tag-natural-disasters","tag-urbanization","tag-water-resources"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/16472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=16472"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/16472\/revisions"}],"predecessor-version":[{"id":25232,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/16472\/revisions\/25232"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media\/25231"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=16472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=16472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=16472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}