{"id":12178,"date":"2019-09-27T20:50:26","date_gmt":"2019-09-27T20:50:26","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=12178"},"modified":"2019-09-27T20:50:26","modified_gmt":"2019-09-27T20:50:26","slug":"screaming-volcanoes-unraveling-the-mysteries-of-volcanic-noises","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/earth-science\/screaming-volcanoes-unraveling-the-mysteries-of-volcanic-noises\/","title":{"rendered":"K\u0159i\u010d\u00edc\u00ed sopky: Odhalte z\u00e1hadu jejich d\u011bsiv\u00fdch zvuk\u016f"},"content":{"rendered":"<h2 class=\"wp-block-heading\">K\u0159i\u010d\u00edc\u00ed sopky: Odhalujeme tajemstv\u00ed sope\u010dn\u00fdch zvuk\u016f<\/h2>\n\n<h2 class=\"wp-block-heading\">\u00davod<\/h2>\n\n<p>Sopky, ty\u010d\u00edc\u00ed se p\u0159\u00edrodn\u00ed ob\u0159i, jsou \u010dasto spojov\u00e1ny s ohniv\u00fdmi erupcemi a roztavenou l\u00e1vou. N\u011bkter\u00e9 sopky v\u0161ak skr\u00fdvaj\u00ed zvl\u00e1\u0161tn\u00ed tajemstv\u00ed: p\u0159ed erupc\u00ed dok\u00e1\u017e\u00ed vyd\u00e1vat zlov\u011bstn\u00e9 zvuky podobn\u00e9 sk\u0159ekotu konvice. V\u011bdci tento jev naz\u00fdvaj\u00ed \u201eharmonick\u00fdm t\u0159esem\u201c.<\/p>\n\n<h2 class=\"wp-block-heading\">Harmonick\u00e9 t\u0159esy: P\u0159edzv\u011bst erupce<\/h2>\n\n<p>V roce 2009 byli v\u011bdci sv\u011bdky pozoruhodn\u00e9 ud\u00e1losti na sopce Redoubt na Alja\u0161ce. P\u0159ed erupc\u00ed zaznamenali harmonick\u00fd t\u0159es, nep\u0159etr\u017eit\u00fd zvuk o vysok\u00e9 frekvenci. Tato nahr\u00e1vka, zkr\u00e1cen\u00e1 na 10 sekund, zachycuje zlov\u011bstn\u00e9 sk\u0159ehot\u00e1n\u00ed sopky, kter\u00e1 se p\u0159ipravuje uvolnit sv\u016fj ohniv\u00fd vztek.<\/p>\n\n<h2 class=\"wp-block-heading\">Zem\u011bt\u0159esn\u00e9 \u00fadery: Rytmick\u00e9 varov\u00e1n\u00ed<\/h2>\n\n<p>Spolu s harmonick\u00fdmi t\u0159esy v\u011bdci zaznamenali tak\u00e9 s\u00e9rii duniv\u00fdch zem\u011bt\u0159esen\u00ed p\u0159edch\u00e1zej\u00edc\u00edch erupci. Zrychlen\u00edm nahr\u00e1vky prom\u011bnili ka\u017ed\u00e9 zem\u011bt\u0159esen\u00ed v samostatn\u00fd \u00fader bubnu a vytvo\u0159ili tak hypnotizuj\u00edc\u00ed symfonii, kter\u00e1 se zrychlovala s bl\u00ed\u017e\u00edc\u00ed se erupc\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Z\u00e1hada sope\u010dn\u00fdch zvuk\u016f<\/h2>\n\n<p>P\u0159esn\u00fd zdroj t\u011bchto sope\u010dn\u00fdch zvuk\u016f z\u016fst\u00e1v\u00e1 p\u0159edm\u011btem v\u011bdeck\u00e9 debaty. Podle v\u00fdzkumn\u00edk\u016f z University of Washington mohou zvuky poch\u00e1zet z n\u011bkolika mechanism\u016f:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Rezonance magmatu:<\/strong> Kdy\u017e magma, roztaven\u00e1 sm\u011bs hornin, miner\u00e1l\u016f a plyn\u016f, stoup\u00e1 \u00fazk\u00fdmi trhlinami v zemsk\u00e9 k\u016f\u0159e, m\u016f\u017ee rezonovat a vytv\u00e1\u0159et hu\u010div\u00fd zvuk.<\/li>\n<li><strong>Pohyb magmatu:<\/strong> Dal\u0161\u00ed teorie nazna\u010duje, \u017ee harmonick\u00fd t\u0159es a zem\u011bt\u0159esen\u00ed nast\u00e1vaj\u00ed, kdy\u017e je magma vytla\u010dov\u00e1no \u00fazk\u00fdm potrub\u00edm pod obrovsk\u00fdm tlakem. Jak se magma p\u0159ichyt\u00e1v\u00e1 na st\u011bny potrub\u00ed, opakovan\u011b se uvol\u0148uje a vytv\u00e1\u0159\u00ed s\u00e9rii mal\u00fdch zem\u011bt\u0159esen\u00ed. Kdy\u017e ot\u0159esy nast\u00e1vaj\u00ed rychle, \u0441\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f do nep\u0159etr\u017eit\u00e9ho zvuku.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Odhalov\u00e1n\u00ed tajemstv\u00ed potrub\u00ed<\/h2>\n\n<p>Paige Hotovec-Ellisov\u00e1, vulkanolo\u017eka, se domn\u00edv\u00e1, \u017ee harmonick\u00fd t\u0159es a zem\u011bt\u0159esen\u00ed pozorovan\u00e9 na sopce Redoubt byly prim\u00e1rn\u011b zp\u016fsobeny pohybem magmatu v \u00fazk\u00e9m potrub\u00ed. P\u0159edpokl\u00e1d\u00e1, \u017ee hust\u00e9 magma ulp\u00edvalo na st\u011bn\u00e1ch potrub\u00ed a k jeho uvoln\u011bn\u00ed a vytla\u010den\u00ed vzh\u016fru byl zapot\u0159eb\u00ed zna\u010dn\u00fd tlak. Poka\u017ed\u00e9, kdy\u017e se magma pohnulo, vyvolalo mal\u00e9 zem\u011bt\u0159esen\u00ed a se zvy\u0161uj\u00edc\u00ed se frekvenc\u00ed zem\u011bt\u0159esen\u00ed nakonec vznikl harmonick\u00fd t\u0159es.<\/p>\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n<p>Studium sope\u010dn\u00fdch zvuk\u016f poskytuje cenn\u00e9 poznatky o vnit\u0159n\u00edm fungov\u00e1n\u00ed t\u011bchto geologick\u00fdch behemoth\u016f. Odhalen\u00edm tajemstv\u00ed harmonick\u00fdch t\u0159es\u016f a zem\u011bt\u0159esn\u00fdch \u00fader\u016f z\u00edsk\u00e1vaj\u00ed v\u011bdci lep\u0161\u00ed pochopen\u00ed proces\u016f vedouc\u00edch k sope\u010dn\u00fdm erupc\u00edm. Tyto znalosti jsou z\u00e1sadn\u00ed pro v\u00fdvoj syst\u00e9m\u016f v\u010dasn\u00e9ho varov\u00e1n\u00ed a zm\u00edr\u0148ov\u00e1n\u00ed rizik spojen\u00fdch se sope\u010dnou \u010dinnost\u00ed. Vzhledem k tomu, \u017ee v\u00fdzkum pokra\u010duje, m\u016f\u017eeme o\u010dek\u00e1vat odhalen\u00ed dal\u0161\u00edch tajemstv\u00ed skryt\u00fdch v hlubin\u00e1ch t\u011bchto fascinuj\u00edc\u00edch p\u0159\u00edrodn\u00edch div\u016f.<\/p>","protected":false},"excerpt":{"rendered":"<p>K\u0159i\u010d\u00edc\u00ed sopky: Odhalujeme tajemstv\u00ed sope\u010dn\u00fdch zvuk\u016f \u00davod Sopky, ty\u010d\u00edc\u00ed se p\u0159\u00edrodn\u00ed ob\u0159i, jsou \u010dasto spojov\u00e1ny s ohniv\u00fdmi erupcemi a roztavenou l\u00e1vou. N\u011bkter\u00e9 sopky v\u0161ak skr\u00fdvaj\u00ed zvl\u00e1\u0161tn\u00ed tajemstv\u00ed: p\u0159ed erupc\u00ed dok\u00e1\u017e\u00ed&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[16450,16449,16452,7435,16451,568,572,342],"class_list":["post-12178","post","type-post","status-publish","format-standard","hentry","category-earth-science","tag-earthquake-drumbeats","tag-harmonic-tremors","tag-magma-movement","tag-volcanic-eruptions","tag-volcanic-noises","tag-volcanoes","tag-earth-science","tag-life-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/12178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=12178"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/12178\/revisions"}],"predecessor-version":[{"id":12179,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/12178\/revisions\/12179"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=12178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=12178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=12178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}