{"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\/sk\/arkticke-more-lad-v-rychlom-pruhu\/","title":{"rendered":"Zmen\u0161ovanie arktick\u00e9ho morsk\u00e9ho \u013eadu v r\u00fdchlom slede"},"content":{"rendered":"

Arkt\u00edda sa sten\u010duje dvakr\u00e1t r\u00fdchlej\u0161ie, ne\u017e sa o\u010dak\u00e1valo.<\/strong><\/h2>\n\n\n\n

Aktualizovan\u00fd model nazna\u010duje, \u017ee morsk\u00fd \u013ead pozd\u013a\u017e pobre\u017eia Arkt\u00eddy sa sten\u010duje dvakr\u00e1t r\u00fdchlej\u0161ie, ako sa o\u010dak\u00e1valo.<\/p>\n\n\n\n

Pr\u00edroda sa zhor\u0161uje v d\u00f4sledku glob\u00e1lneho otep\u013eovania a klimatick\u00fdch zmien. R\u00fdchle topenie \u013eadu na p\u00f3loch sp\u00f4sobuje stratu biodiverzity a vyvol\u00e1va obavy aj o hladinu mor\u00ed.<\/p>\n\n\n\n

Pozrite si Mind the Graph Gal\u00e9ria<\/a> pre ilustr\u00e1cie t\u00fdkaj\u00face sa morsk\u00e9ho \u013eadu. Kliknite na obr\u00e1zok ni\u017e\u0161ie!<\/p>\n\n\n\n

\"ilustr\u00e1cie<\/a><\/figure>\n\n\n\n

Hr\u00fabka morsk\u00e9ho \u013eadu sl\u00fa\u017ei ako barometer na pochopenie stavu arktickej oblasti. \u010c\u00edm je \u013ead hrub\u0161\u00ed, t\u00fdm viac tepelne izoluje, zabra\u0148uje zvy\u0161ovaniu teploty povrchu oce\u00e1nu v zime a v lete poskytuje ochranu pred teplom.<\/p>\n\n\n\n

Je tie\u017e menej pravdepodobn\u00e9, \u017ee letn\u00e9 topenie v Arkt\u00edde udr\u017e\u00ed ten\u0161\u00ed \u013ead.<\/p>\n\n\n\n

Preto v\u00fdskumn\u00edci vyhodnotili v\u00fdsledky novo vyvinut\u00e9ho po\u010d\u00edta\u010dov\u00e9ho programu ur\u010den\u00e9ho na odhad rozdielu v ro\u010dnej v\u00fd\u0161ke snehu a identifikovali rednutie morsk\u00e9ho \u013eadu<\/strong> zr\u00fdchlil ove\u013ea viac, ne\u017e sa o\u010dak\u00e1valo.<\/p>\n\n\n\n

\u00da\u010del a ciele \u0161t\u00fadie<\/strong><\/h2>\n\n\n\n

Ke\u010f\u017ee morsk\u00fd \u013ead zmier\u0148uje v\u00fdmenu vzduchu a vody a prenos tepla medzi oce\u00e1nmi a atmosf\u00e9rou, m\u00e1 to vplyv na region\u00e1lne ekosyst\u00e9my, vzorce vetrov na pologuli a glob\u00e1lnu kl\u00edmu.<\/p>\n\n\n\n

Tepeln\u00e1 izol\u00e1cia sa zvy\u0161uje pri hrub\u0161om morskom \u013eade, tak\u017ee teploty v zime zost\u00e1vaj\u00fa ni\u017e\u0161ie.<\/p>\n\n\n\n

Pr\u00e1ve hr\u00fabka morsk\u00e9ho \u013eadu po\u010das hromadenia snehu ur\u010duje aj h\u013abku morsk\u00e9ho \u013eadu pod vodnou hladinou, \u010do v\u00fdznamne prispieva k termodynamick\u00e9mu rastu morsk\u00e9ho \u013eadu. Hr\u00fabka morsk\u00e9ho \u013eadu je preto d\u00f4le\u017eit\u00fdm ukazovate\u013eom zdravia regi\u00f3nu. <\/p>\n\n\n\n

V\u00fdskumn\u00edci pou\u017eili CryoSat-2<\/a> satelitn\u00fd radar na meranie hr\u00fabky morsk\u00e9ho \u013eadu pre t\u00fato \u0161t\u00fadiu.<\/p>\n\n\n\n

Cie\u013eom bolo porovna\u0165 dostupn\u00e9 \u00fadaje zo star\u00e9ho modelu s nov\u00fdm modelom, ktor\u00fd zah\u0155\u0148al zmenu kl\u00edmy.<\/p>\n\n\n\n

V\u00fd\u0161ku \u013eadu nad vodou mo\u017eno zisti\u0165 na z\u00e1klade \u010dasu, za ktor\u00fd sa radarov\u00e9 vlny odrazia, \u010d\u00edm sa odhadne jeho hr\u00fabka.<\/p>\n\n\n\n

Na predpovedanie celkovej v\u00fd\u0161ky a hustoty snehu na r\u00f4znych miestach v okol\u00ed Severn\u00e9ho \u013eadov\u00e9ho oce\u00e1nu sa pou\u017eil Lagrangeov model akumul\u00e1cie snehu SnowModel-LG, ktor\u00fd zoh\u013ead\u0148uje vietor, teplotu, zr\u00e1\u017eky a anal\u00fdzu pohybu \u013eadu.<\/p>\n\n\n\n

Nasledovalo spojenie v\u00fdsledkov snehov\u00e9ho modelu s \u00fadajmi zo satelitn\u00e9ho radaru s cie\u013eom odhadn\u00fa\u0165, ako r\u00fdchlo sa hr\u00fabka morsk\u00e9ho \u013eadu v Arkt\u00edde zmen\u0161uje a ako sa m\u00f4\u017ee v \u010dase meni\u0165.<\/p>\n\n\n\n

\"ve\u013ek\u00fd<\/a>
Zdroj obr\u00e1zku: Unsplash<\/a> pod\u013ea Cassie Matias<\/a><\/figcaption><\/figure>\n\n\n\n

V\u00fdsledkom je:<\/strong><\/h2>\n\n\n\n

K variabilite hr\u00fabky morsk\u00e9ho \u013eadu v okrajov\u00fdch moriach sa pripo\u010d\u00edtal 50-percentn\u00fd faktor vr\u00e1tane variability snehovej pokr\u00fdvky.<\/p>\n\n\n\n

Pod\u013ea ich \u0161t\u00fadie sa kol\u00edsanie snehovej pokr\u00fdvky podie\u013ea \u010doraz v\u00e4\u010d\u0161ou mierou na variabilite odhadovanej hr\u00fabky morsk\u00e9ho \u013eadu, ktor\u00e1 sa v sez\u00f3nnom meradle zv\u00fd\u0161ila z pribli\u017ene 20% na viac ako 70%.<\/p>\n\n\n\n

V \u0161tatistik\u00e1ch hr\u00fabky morsk\u00e9ho \u013eadu boli tie\u017e pozorovan\u00e9 trendy zalo\u017een\u00e9 na \u00fadajoch SnowModel-LG, ktor\u00e9 zosilnili pokles v oblastiach, kde u\u017e existoval, a priniesli v\u00fdrazn\u00e9 straty v lokalit\u00e1ch, kde e\u0161te nebol.<\/p>\n\n\n\n

Zvy\u0161uj\u00faca sa uhl\u00edkov\u00e1 stopa vedie k zmen\u0161ovaniu \u013eadovej pokr\u00fdvky, preto\u017ee \u013eudia v\u00fdrazne zv\u00fd\u0161ili po\u010det \u010dinnost\u00ed, ktor\u00e9 ovplyv\u0148uj\u00fa \u017eivotn\u00e9 prostredie. V d\u00f4sledku topenia \u013eadovcov pri\u0161lo o svoje \u017eivotn\u00e9 prostredie aj nieko\u013eko druhov \u017eivo\u010d\u00edchov v pol\u00e1rnych oblastiach. Holistick\u00fd pr\u00edstup k hodnoteniu hr\u00fabky morsk\u00e9ho \u013eadu poskytne ich integrovan\u00fd model, ktor\u00fd preklenuje medzeru zastaran\u00fdch syst\u00e9mov anal\u00fdzy a zah\u0155\u0148a faktory, ako je zmena kl\u00edmy.<\/p>\n\n\n\n

Ich v\u00fdskum je v\u00fdznamn\u00fdm m\u00ed\u013enikom, ktor\u00fd ur\u010dite m\u00f4\u017ee prispie\u0165 k \u0161ir\u0161iemu poh\u013eadu na skuto\u010dn\u00fa pr\u00ed\u010dinu.<\/p>\n\n\n\n

Ak sa chcete dozvedie\u0165 viac o ich v\u00fdskume, pozrite si odkaz uveden\u00fd ni\u017e\u0161ie. <\/p>\n\n\n\n

Robbie D. C. Mallett, Julienne C. Stroeve, Michel Tsamados, Jack C. Landy, Rosemary Willatt, Vishnu Nandan, Glen E. Liston. R\u00fdchlej\u0161\u00ed pokles a vy\u0161\u0161ia variabilita hr\u00fabky morsk\u00e9ho \u013eadu v okrajov\u00fdch arktick\u00fdch moriach pri zoh\u013eadnen\u00ed dynamickej snehovej pokr\u00fdvky. The Cryosphere, 2021; 15 (5): 2429<\/a> DOI: 10.5194\/tc-15-2429-2021<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Arkt\u00edda sa sten\u010duje dvakr\u00e1t r\u00fdchlej\u0161ie, ne\u017e sa o\u010dak\u00e1valo. Aktualizovan\u00fd model nazna\u010duje, \u017ee morsk\u00fd \u013ead pozd\u013a\u017e pobre\u017eia Arkt\u00eddy sa sten\u010duje dvakr\u00e1t r\u00fdchlej\u0161ie, ne\u017e sa o\u010dak\u00e1valo. Pr\u00edroda sa zhor\u0161uje s rast\u00facim glob\u00e1lnym otep\u013eovan\u00edm a klimatick\u00fdmi zmenami. R\u00fdchle topenie \u013eadu na p\u00f3loch sp\u00f4sobuje \u00fabytok biodiverzity a vyvol\u00e1va obavy, \u017ee sa [...]<\/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\/sk\/arkticke-more-lad-v-rychlom-pruhu\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\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\/sk\/arkticke-more-lad-v-rychlom-pruhu\/\" \/>\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 - 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