{"id":13092,"date":"2021-07-08T11:00:00","date_gmt":"2021-07-08T14:00:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=13092"},"modified":"2023-01-05T13:48:01","modified_gmt":"2023-01-05T16:48:01","slug":"arctic-sea-ice-thinning-in-the-fast-lane","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/et\/arktiline-see-jaa-vooras-kiirteel\/","title":{"rendered":"Arktilise merej\u00e4\u00e4 h\u00f5renemine, kiirkorras"},"content":{"rendered":"

Arktika h\u00f5reneb oodatust kaks korda kiiremini.<\/strong><\/h2>\n\n\n\n

Ajakohastatud mudel n\u00e4itab, et merej\u00e4\u00e4 Arktika rannikul h\u00f5reneb kaks korda kiiremini kui oodatud.<\/p>\n\n\n\n

Loodus halveneb seoses globaalse soojenemise ja kliimamuutustega. Kuna pooluste j\u00e4\u00e4 sulab kiiresti, p\u00f5hjustab see bioloogilise mitmekesisuse v\u00e4henemist ja tekitab muret ka meretaseme p\u00e4rast.<\/p>\n\n\n\n

Vaadake Mind the Graph galerii<\/a> merej\u00e4\u00e4ga seotud illustratsioonid. Kl\u00f5psake alloleval pildil!<\/p>\n\n\n\n

\"merej\u00e4\u00e4<\/a><\/figure>\n\n\n\n

Merej\u00e4\u00e4 paksus on baromeeter, mis aitab m\u00f5ista Arktika piirkonna olukorda. Mida paksem on j\u00e4\u00e4, seda rohkem soojusisolatsiooni annab see, takistades talvel ookeani pinnatemperatuuri t\u00f5usu ja kaitstes suvel kuumuse eest.<\/p>\n\n\n\n

Arktika suvine sulamine on ka v\u00e4hem t\u00f5en\u00e4oline, kuna j\u00e4\u00e4 on \u00f5hem.<\/p>\n\n\n\n

Seega on teadlased hinnanud hiljuti v\u00e4lja t\u00f6\u00f6tatud arvutiprogrammi tulemusi, mille eesm\u00e4rk on hinnata lume s\u00fcgavuse erinevust aastas, ja tuvastanud merej\u00e4\u00e4 h\u00f5renemine<\/strong> kiirenes oodatust palju rohkem.<\/p>\n\n\n\n

Uuringu eesm\u00e4rk ja \u00fclesanded<\/strong><\/h2>\n\n\n\n

Kuna merej\u00e4\u00e4kate reguleerib \u00f5hu ja vee vahetust ning soojus\u00fclekannet ookeanide ja atmosf\u00e4\u00e4ri vahel, m\u00f5jutab see piirkondlikke \u00f6kos\u00fcsteeme, poolkera tuulte mustreid ja globaalset kliimat.<\/p>\n\n\n\n

Paksema merej\u00e4\u00e4ga suureneb soojusisolatsioon, mist\u00f5ttu temperatuur j\u00e4\u00e4b talvel madalamaks.<\/p>\n\n\n\n

Samuti m\u00e4\u00e4rab merej\u00e4\u00e4 paksus lume kogunemise ajal merej\u00e4\u00e4 s\u00fcgavuse veepinnast allpool, mis aitab oluliselt kaasa merej\u00e4\u00e4 termod\u00fcnaamilisele kasvule. Seega on merej\u00e4\u00e4 paksus oluline n\u00e4itaja piirkonna tervise kohta. <\/p>\n\n\n\n

Teadlased kasutasid CryoSat-2<\/a> satelliitradarit, et m\u00f5\u00f5ta merej\u00e4\u00e4 paksust k\u00e4esoleva uuringu jaoks.<\/p>\n\n\n\n

Eesm\u00e4rk oli v\u00f5rrelda vanast mudelist k\u00e4ttesaadavaid andmeid uue mudeliga, mis h\u00f5lmas kliimamuutusi.<\/p>\n\n\n\n

J\u00e4\u00e4 k\u00f5rgus vee kohal on v\u00f5imalik kindlaks teha, m\u00f5\u00f5tes, kui kaua v\u00f5tab aega radarilainete peegeldumine, mille tulemusena saab hinnata j\u00e4\u00e4 paksust.<\/p>\n\n\n\n

Lumemudel-LG, Lagrange'i lumekogunemise mudel, kasutati lume kogus\u00fcgavuse ja -tiheduse prognoosimiseks erinevates kohtades P\u00f5hja-J\u00e4\u00e4mere \u00fcmbruses, v\u00f5ttes arvesse tuule, temperatuuri, sademete ja j\u00e4\u00e4 liikumise anal\u00fc\u00fcsi.<\/p>\n\n\n\n

Sellele j\u00e4rgnes lumemudeli tulemuste kombineerimine satelliitradari andmetega, et hinnata, kui kiiresti merej\u00e4\u00e4 paksus Arktikas v\u00e4heneb ja kuidas see v\u00f5ib aja jooksul muutuda.<\/p>\n\n\n\n

\"suur<\/a>
Pildi allikas: Unsplash<\/a> poolt Cassie Matias<\/a><\/figcaption><\/figure>\n\n\n\n

Selle tulemusena:<\/strong><\/h2>\n\n\n\n

Merij\u00e4\u00e4 paksuse varieeruvusele \u00e4\u00e4repoolseimate merede puhul lisati 50-protsendiline tegur, kaasates lumekatte varieeruvuse.<\/p>\n\n\n\n

Nende uuringu kohaselt moodustab lumekatte k\u00f5ikumine \u00fcha suurema osa merej\u00e4\u00e4 paksuse varieeruvusest, kasvades hooajaliselt umbes 20%-lt rohkem kui 70%-ni.<\/p>\n\n\n\n

SnowModel-LG andmete p\u00f5hjal t\u00e4heldati suundumusi ka merej\u00e4\u00e4 paksuse statistikas, mis v\u00f5imendas langust piirkondades, kus see juba olemas oli, ja t\u00f5i kaasa m\u00e4rkimisv\u00e4\u00e4rse v\u00e4henemise kohtades, kus seda veel ei olnud.<\/p>\n\n\n\n

Kasvav s\u00fcsinikujalaj\u00e4lg viib j\u00e4\u00e4kihi v\u00e4henemiseni, sest inimesed on oluliselt suurendanud keskkonda m\u00f5jutavate tegevuste arvu. Ka mitmed loomaliigid polaaraladel on selle sulamise t\u00f5ttu kaotanud elupaiku. Terviklik l\u00e4henemine merej\u00e4\u00e4 paksuse hindamiseks antakse nende integreeritud mudeli abil, mis t\u00e4idab vananenud anal\u00fc\u00fcsis\u00fcsteemide l\u00fcnka ja h\u00f5lmab selliseid tegureid nagu kliimamuutus.<\/p>\n\n\n\n

Nende uuring on oluline verstapost, mis v\u00f5ib kindlasti aidata kaasa suuremale pildile, et uurida tegelikku p\u00f5hjust.<\/p>\n\n\n\n

Kui soovite rohkem teada nende uuringute kohta, vaadake allpool nimetatud viidet. <\/p>\n\n\n\n

Robbie D. C. Mallett, Julienne C. Stroeve, Michel Tsamados, Jack C. Landy, Rosemary Willatt, Vishnu Nandan, Glen E. Liston. Arktika \u00e4\u00e4repoolsete merede merej\u00e4\u00e4 paksuse kiirem v\u00e4henemine ja suurem varieeruvus d\u00fcnaamilise lumekatte arvestamisel. The Cryosphere, 2021; 15 (5): 2429<\/a> DOI: 10.5194\/tc-15-2429-2021<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Arktika h\u00f5reneb oodatust kaks korda kiiremini. Ajakohastatud mudel n\u00e4itab, et merej\u00e4\u00e4 Arktika rannikul h\u00f5reneb kaks korda kiiremini kui oodatud. Loodus halveneb seoses globaalse soojenemise ja kliimamuutustega. Kuna pooluste j\u00e4\u00e4 sulab kiiresti, p\u00f5hjustab see bioloogilise mitmekesisuse v\u00e4henemist ja tekitab muret [...]<\/p>","protected":false},"author":18,"featured_media":13111,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\nArctic Sea Ice Thinning, in the Fast Lane - MTG<\/title>\n<meta name=\"description\" content=\"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/et\/arktiline-see-jaa-vooras-kiirteel\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arctic Sea Ice Thinning, in the Fast Lane\" \/>\n<meta property=\"og:description\" content=\"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/et\/arktiline-see-jaa-vooras-kiirteel\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-08T14:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-05T16:48:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic-sea-facebook-01.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bruna Soldera\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Arctic Sea Ice Thinning, in the Fast Lane\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bruna Soldera\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Arctic Sea Ice Thinning, in the Fast Lane - MTG","description":"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mindthegraph.com\/blog\/et\/arktiline-see-jaa-vooras-kiirteel\/","og_locale":"et_EE","og_type":"article","og_title":"Arctic Sea Ice Thinning, in the Fast Lane","og_description":"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.","og_url":"https:\/\/mindthegraph.com\/blog\/et\/arktiline-see-jaa-vooras-kiirteel\/","og_site_name":"Mind the Graph Blog","article_published_time":"2021-07-08T14:00:00+00:00","article_modified_time":"2023-01-05T16:48:01+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic-sea-facebook-01.jpg","type":"image\/jpeg"}],"author":"Bruna Soldera","twitter_card":"summary_large_image","twitter_title":"Arctic Sea Ice Thinning, in the Fast Lane","twitter_image":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic.jpg","twitter_misc":{"Written by":"Bruna Soldera","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mindthegraph.com\/blog\/arctic-sea-ice-thinning-in-the-fast-lane\/","url":"https:\/\/mindthegraph.com\/blog\/arctic-sea-ice-thinning-in-the-fast-lane\/","name":"Arctic Sea Ice Thinning, in the Fast Lane - MTG","isPartOf":{"@id":"https:\/\/mindthegraph.com\/blog\/#website"},"datePublished":"2021-07-08T14:00:00+00:00","dateModified":"2023-01-05T16:48:01+00:00","author":{"@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/6a3f0be2cd19879e0b9b54457a069602"},"description":"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.","breadcrumb":{"@id":"https:\/\/mindthegraph.com\/blog\/arctic-sea-ice-thinning-in-the-fast-lane\/#breadcrumb"},"inLanguage":"et","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mindthegraph.com\/blog\/arctic-sea-ice-thinning-in-the-fast-lane\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mindthegraph.com\/blog\/arctic-sea-ice-thinning-in-the-fast-lane\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mindthegraph.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Arctic Sea Ice Thinning, in the Fast Lane"}]},{"@type":"WebSite","@id":"https:\/\/mindthegraph.com\/blog\/#website","url":"https:\/\/mindthegraph.com\/blog\/","name":"Mind the Graph Blog","description":"Your science can be beautiful!","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mindthegraph.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"et"},{"@type":"Person","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/6a3f0be2cd19879e0b9b54457a069602","name":"Bruna Soldera","image":{"@type":"ImageObject","inLanguage":"et","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/93afc55eb938f215d2b7a23322de49be?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/93afc55eb938f215d2b7a23322de49be?s=96&d=mm&r=g","caption":"Bruna Soldera"},"sameAs":["http:\/\/mindthegraph.com","https:\/\/www.linkedin.com\/in\/bruna-soldera-826426126\/"],"url":"https:\/\/mindthegraph.com\/blog\/et\/author\/bruna\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/posts\/13092"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/comments?post=13092"}],"version-history":[{"count":3,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/posts\/13092\/revisions"}],"predecessor-version":[{"id":26009,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/posts\/13092\/revisions\/26009"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/media\/13111"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/media?parent=13092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/categories?post=13092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/et\/wp-json\/wp\/v2\/tags?post=13092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}