{"id":17690,"date":"2021-05-13T09:20:13","date_gmt":"2021-05-13T09:20:13","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=17690"},"modified":"2021-05-13T09:20:13","modified_gmt":"2021-05-13T09:20:13","slug":"winter-storm-uri-arctic-blast-impacts-us","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/ro\/science\/climate-and-weather\/winter-storm-uri-arctic-blast-impacts-us\/","title":{"rendered":"Furtuna de iarn\u0103 Uri: O vijelie arctic\u0103 devastatoare"},"content":{"rendered":"

Furtuna de iarn\u0103 Uri: O vijelie arctic\u0103 devastatoare<\/h2>\n\n

Temperaturi \u0219i ninsori record<\/h2>\n\n

Furtuna de iarn\u0103 Uri a adus temperaturi record \u0219i ninsori \u00een 26 de state s\u0103pt\u0103m\u00e2na aceasta, l\u0103s\u00e2nd milioane de oameni f\u0103r\u0103 electricitate \u0219i ap\u0103. Pe 16 februarie, peste 73% din cele 48 de state inferioare ale Statelor Unite erau acoperite de z\u0103pad\u0103, cel mai mare procent de c\u00e2nd NOAA a \u00eenceput s\u0103 urm\u0103reasc\u0103 stratul de z\u0103pad\u0103 \u00een 2011. Ninsori record au lovit Salt Lake City, Detroit \u0219i c\u00e2teva ora\u0219e din Texas, inclusiv Austin, Abilene \u0219i San Angelo.<\/p>\n\n

Temperaturi extreme<\/h2>\n\n

Vijelia arctic\u0103 ce a cuprins SUA \u00ee\u0219i are originea \u00een Siberia. \u00cen mod normal, un inel de aer cu mi\u0219care rapid\u0103 numit curentul de jet men\u021bine aerul \u00eenghe\u021bat al Arcticii la locul lui \u00een partea de sus a globului, unde formeaz\u0103 v\u00e2rtejul polar. \u00cens\u0103 \u00eenc\u0103lzirea climei sl\u0103be\u0219te curentul de jet, permi\u021b\u00e2ndu-i s\u0103 se \u00eendoaie \u0219i s\u0103 trimit\u0103 aer rece spre sud. Drept urmare, Kansas City a \u00eenregistrat minime de minus zece grade Fahrenheit mar\u021bi diminea\u021b\u0103, \u00een timp ce Anchorage, Alaska, s-a confruntat cu minime de plus 20 de grade Fahrenheit.<\/p>\n\n

Impactul asupra infrastructurii \u0219i utilit\u0103\u021bilor<\/h2>\n\n

Friul extrem a avut un impact devastator asupra infrastructurii \u0219i utilit\u0103\u021bilor, \u00een special \u00een statele din sud, neobi\u0219nuite cu condi\u021biile severe de iarn\u0103. Peste patru milioane de oameni au r\u0103mas f\u0103r\u0103 electricitate \u00een statele din sud, dintre care 3,5 milioane de \u00eentreruperi au avut loc \u00een Texas. Re\u021beaua electric\u0103 izolat\u0103 a statului, \u00een mare parte independent\u0103 de re\u021belele estice \u0219i vestice ale \u021b\u0103rii, a fost deosebit de vulnerabil\u0103. Mormane de c\u0103rbune \u00eenghe\u021bate, conducte de gaz natural blocate \u0219i turbine eoliene \u00eenghe\u021bate au paralizat produc\u021bia de energie, \u00een timp ce centralele nucleare au fost \u00eenchise din cauza unor probleme legate de vreme.<\/p>\n\n

Pe m\u0103sur\u0103 ce oamenii se chinuiau s\u0103-\u0219i \u00eenc\u0103lzeasc\u0103 locuin\u021bele, cererea de energie electric\u0103 a crescut brusc, ating\u00e2nd un nou record de v\u00e2rf de cerere de iarn\u0103 de 69.150 de megawa\u021bi \u00een Texas. Statul a implementat \u00eentreruperi de curent rotative pentru a ra\u021bionaliza alimentarea cu energie, \u00eens\u0103 unii oameni au r\u0103mas f\u0103r\u0103 curent timp de c\u00e2teva zile la temperaturi sub zero.<\/p>\n\n

Situa\u021bia a fost agravat\u0103 de o lips\u0103 de ap\u0103 potabil\u0103. Locuitorii au l\u0103sat robinetele s\u0103 picure pentru a preveni \u00eenghe\u021barea conductelor, ceea ce a dus la \u00eentreruperi generalizate ale apei \u0219i la notific\u0103ri de fierbere a apei. Doisprezece milioane de oameni au fost afecta\u021bi, iar spitalele \u0219i pompierii s-au confruntat cu penurii periculoase.<\/p>\n\n

Rolul schimb\u0103rilor climatice<\/h2>\n\n

Exist\u0103 o dezbatere continu\u0103 \u00een r\u00e2ndul cercet\u0103torilor climatici cu privire la faptul dac\u0103 evenimentele de frig extrem, precum furtuna de iarn\u0103 Uri, vor deveni mai frecvente pe m\u0103sur\u0103 ce schimb\u0103rile climatice continu\u0103. Unii oameni de \u0219tiin\u021b\u0103 cred c\u0103 temperaturile \u00een cre\u0219tere vor face ca astfel de evenimente s\u0103 fie mai pu\u021bin frecvente, \u00een timp ce al\u021bii sus\u021bin c\u0103 un curent de jet sl\u0103bit ar putea duce la valuri de frig mai frecvente, cel pu\u021bin pe termen scurt. Cu toate acestea, \u00een prezent, anomaliile vremii calde dep\u0103\u0219esc cazurile neobi\u0219nuite de frig extrem \u00eentr-un ritm de dou\u0103 sau trei la unu.<\/p>\n\n

Recuperare \u0219i rezilien\u021b\u0103<\/h2>\n\n

Pe m\u0103sur\u0103 ce furtuna de iarn\u0103 Uri se domole\u0219te, eforturile de recuperare sunt \u00een curs de desf\u0103\u0219urare. Statul a cerut oamenilor s\u0103 nu mai lase robinetele s\u0103 picure pentru a conserva apa pentru serviciile esen\u021biale. Repara\u021biile la infrastructura \u0219i utilit\u0103\u021bile avariate sunt \u00een curs de desf\u0103\u0219urare \u0219i nu este \u00eenc\u0103 clar c\u00e2nd cei afecta\u021bi de furtun\u0103 vor primi ajutor.<\/p>\n\n

Pustiirea cauzat\u0103 de furtuna de iarn\u0103 Uri subliniaz\u0103 importan\u021ba rezisten\u021bei comunit\u0103\u021bii \u0219i a preg\u0103tirii pentru viitoarele evenimente meteorologice extreme. Prin investi\u021bii \u00een infrastructur\u0103 care poate rezista la temperaturi extreme, dezvoltarea unor planuri solide de r\u0103spuns la urgen\u021be \u0219i educarea publicului cu privire la importan\u021ba conserv\u0103rii, putem atenua mai bine impactul unor astfel de evenimente \u0219i asigura siguran\u021ba \u0219i bun\u0103starea comunit\u0103\u021bilor noastre.<\/p>","protected":false},"excerpt":{"rendered":"

Furtuna de iarn\u0103 Uri: O vijelie arctic\u0103 devastatoare Temperaturi \u0219i ninsori record Furtuna de iarn\u0103 Uri a adus temperaturi record \u0219i ninsori \u00een 26 de state s\u0103pt\u0103m\u00e2na aceasta, l\u0103s\u00e2nd milioane…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23223],"tags":[23222,23219,19464,23221,23220,34,7071,19465,23218],"class_list":["post-17690","post","type-post","status-publish","format-standard","hentry","category-climate-and-weather","tag-jet-stream","tag-arctic-blast","tag-extreme-cold","tag-water-disruptions","tag-power-outages","tag-climate-change","tag-snowstorm","tag-polar-vortex","tag-winter-storm-uri"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/17690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/comments?post=17690"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/17690\/revisions"}],"predecessor-version":[{"id":17691,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/17690\/revisions\/17691"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media?parent=17690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/categories?post=17690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/tags?post=17690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}