{"id":401,"date":"2018-04-10T07:24:00","date_gmt":"2018-04-10T05:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_satellites_help_combat_plastic_pollution\/"},"modified":"2026-10-08T00:27:45","modified_gmt":"2026-10-07T22:27:45","slug":"esa_satellites_help_combat_plastic_pollution","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/esa_satellites_help_combat_plastic_pollution\/","title":{"rendered":"ESA satelliidid aitavad v\u00f5idelda plastireostuse vastu"},"content":{"rendered":"<div class=\"lede\">\n<p>Arvestades selle kauneid siniseid ookeane, pole ime, et Maad tuntakse Sinise Planeedina. Vesi on eluks h\u00e4davajalik, seega on oluline, et hoolitseme h\u00e4sti oma merede, ookeanide, j\u00f5gede ja j\u00e4rvede eest.<\/p>\n<\/div>\n<p>Selleks on ESA saatnud Maa orbiidile sellised kosmoses\u00f5idukid nagu Sentinelid. Need on loodud Maa j\u00e4lgimiseks kosmosest ja piltide saatmiseks maapinnal asuvatele teadlastele. Nende kogutud teavet kasutatakse veetaseme j\u00e4lgimiseks, \u00fcleujutusteks valmistumiseks ja selle tagamiseks, et k\u00f5igil oleks piisavalt vett kasutamiseks.<\/p>\n<p>N\u00fc\u00fcd oleme \u00fcha enam teadlikud suurest probleemist, millega meie ookeanid silmitsi seisavad: plastireostusest. Igal aastal heidetakse Maa ookeanidesse umbes 10 miljonit tonni plastij\u00e4\u00e4tmeid. Plastij\u00e4\u00e4tmeid on lihtne m\u00e4rgata, kui need randadele uhtuvad, kuid prahti v\u00f5ib leida ka kaugel avamerel. M\u00f5ningaid on avastatud isegi k\u00fclmunud polaarj\u00e4\u00e4s!<\/p>\n<\/p>\n<p>Uuri, kuidas ESA satelliidid aitavad veevarude haldamisel. Autori\u00f5igus: EO4SD-Water konsortsium.<\/p>\n<p>Laineid lagundavad j\u00e4rk-j\u00e4rgult meie ookeanides olevat plastikut. Seej\u00e4rel v\u00f5ivad kalad ja muud mereelukad seda kogemata alla neelata. Lisaks sellele, et see on kahjulik neile loomadele, satub plastik toiduahelasse, mis t\u00e4hendab, et see m\u00f5jutab ka teisi elusolendeid \u2013 sealhulgas inimesi.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA - ScienceOffice.org\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/04\/Remote_sensing_of_marine_plastic_litter\" 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\/2018\/04\/remote_sensing_of_marine_plastic_litter\/17873039-2-eng-GB\/Remote_sensing_of_marine_plastic_litter.jpg\" alt=\"Remote sensing of marine plastic litter\"><figcaption>Mereplastij\u00e4\u00e4tmete kaugseire<\/figcaption><\/figure>\n<p>Ookeanivoolude satelliitkaarte kasutatakse juba praegu selleks, et ennustada, kuhu koguneb praht Vaikse, Atlandi ja India ookeanis. Teadlased loodavad minna selles veel sammu edasi, uurides, kas satelliidid suudavad otseselt tuvastada Maa meredes ujuvat plastireostust. ESA satelliidid p\u00fc\u00fcaksid seda teha, uurides pr\u00fcgist peegeldunud infrapunakiirgust ja otsides spetsiaalset \u201cs\u00f5rmej\u00e4lge\u201d, mis n\u00e4itab plastiku olemasolu. Seda tehnoloogiat kasutatakse juba ringlussev\u00f5tutehastes erinevate plastiliikide eraldamiseks.<\/p>\n<p>Kui see h\u00e4sti toimib, saame koostada Maa ookeanide t\u00e4pse kaardi, millel on n\u00e4idatud, kus plastij\u00e4\u00e4tmed ujuvad. Kui oleme probleemi tegeliku ulatuse teada saanud, saame v\u00e4lja t\u00f6\u00f6tada parimad lahendused selle lahendamiseks!<\/p>\n<p>Huvitav fakt:<\/p>\n<p>Sentinel-satelliidid on saanud oma nime s\u00f5durite j\u00e4rgi, kelle \u00fclesandeks on ohtude eest valvet pidada. ESA Sentinel-satelliidid valvavad meie planeeti.<\/p>","protected":false},"excerpt":{"rendered":"<p>With its beautiful blue oceans, it is no wonder that Earth is known as the Blue Planet. Water is vital for life, so it is important that we take good [&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\/2018\/04\/ocean_plastic\/17881364-2-eng-GB\/Ocean_plastic.jpg","esa_banner_description":"Ocean plastic","esa_banner_credit":"J. 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