{"id":6322,"date":"2026-10-19T09:48:46","date_gmt":"2026-10-19T09:48:46","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-jardedlisfraedi-sara-sayyadi\/"},"modified":"2026-10-19T09:48:46","modified_gmt":"2026-10-19T09:48:46","slug":"doktorsvorn-i-jardedlisfraedi-sara-sayyadi","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-jardedlisfraedi-sara-sayyadi\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed jar\u00f0e\u00f0lisfr\u00e6\u00f0i &#8211; Sara Sayyadi"},"content":{"rendered":"<div class=\"field-items\">\n<div class=\"field-item even\" property=\"content:encoded\">\n<p>Streymi<\/p>\n<p><strong>Doktorsefni:<\/strong>\u00a0Sara Sayyadi<\/p>\n<p><strong>Heiti ritger\u00f0ar:<\/strong>\u00a0Surtseyjagosi\u00f0 1963-1967: Jar\u00f0e\u00f0lisfr\u00e6\u00f0ilegar skor\u00f0ur \u00e1 framgangi \u00feess og innri ger\u00f0 gosmyndana.<\/p>\n<p><strong>Andm\u00e6lendur:<\/strong>\u00a0Dr. Michael Ort, pr\u00f3fessor vi\u00f0 H\u00e1sk\u00f3lann \u00ed Nor\u00f0ur-Arizona og Dr. Stephen McNutt, pr\u00f3fessor vi\u00f0 H\u00e1sk\u00f3lann \u00ed Su\u00f0ur Fl\u00f3r\u00edda.<\/p>\n<p><strong>Lei\u00f0beinandi:<\/strong>\u00a0Dr. Magn\u00fas Tumi Gu\u00f0mundsson, pr\u00f3fessor \u00ed jar\u00f0e\u00f0lisfr\u00e6\u00f0i vi\u00f0 H\u00e1sk\u00f3la \u00cdslands.<\/p>\n<p><strong>Einnig \u00ed doktorsnefnd:<\/strong>\u00a0Dr. P\u00e1ll Einarsson, pr\u00f3fessor emeritus, Jar\u00f0v\u00edsindadeild H\u00cd og Dr. James D.L. White, pr\u00f3fessor vi\u00f0 University of Otago, N\u00fdja Sj\u00e1landi.\u00a0<\/p>\n<p><strong>Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr. Andri Stef\u00e1nsson, pr\u00f3fessor og deildarforseti Jar\u00f0v\u00edsindadeildar H\u00e1sk\u00f3la \u00cdslands.<\/p>\n<p><strong>\u00c1grip<\/strong><\/p>\n<p>Surtsey mynda\u00f0ist \u00ed eldgosi undan su\u00f0urstr\u00f6nd \u00cdslands \u00e1 \u00e1runum 1963-1967. Gosvirkni f\u00e6r\u00f0ist til nokkrum sinnum og alls gaus \u00e1 fimm st\u00f6\u00f0um, \u00ed Surti, Surtlu, Surtungi, Syrtlingi og J\u00f3lni. Myndanirnar eru samtals um 5.8 km \u00e1 lengd, mynda brei\u00f0an en slitr\u00f3ttan hrygg, a\u00f0 st\u00f3rum hluta ne\u00f0ansj\u00e1var. Greining gagna \u00far \u00fev\u00ed frumst\u00e6\u00f0a skj\u00e1lftam\u00e6lakerfi sem til var \u00e1 \u00cdslandi \u00e1 \u00feessum t\u00edma s\u00fdnir a\u00f0 ne\u00f0ri greiningarm\u00f6rk jar\u00f0skj\u00e1lfta voru ML=2,5 fyrir Surtsey. Hrina skj\u00e1lfta &lt;3 var\u00f0 s\u00ed\u00f0ustu n\u00edu dagana fyrir gosi\u00f0, \u00ed n\u00f3vember 1963. St\u00f6\u00f0ugur l\u00e1gt\u00ed\u00f0ni\u00f3r\u00f3i h\u00f3fst upp \u00far h\u00e1degi 12. n\u00f3vember og er hann talinn marka upphaf Surtseyjargossins, 40 t\u00edmum \u00e1\u00f0ur en gosi\u00f0 s\u00e1st \u00e1 yfirbor\u00f0i a\u00f0 morgni 14. n\u00f3vember. Jarskj\u00e1lftar vi\u00f0 Surtsey me\u00f0an \u00e1 gosinu st\u00f3\u00f0 voru a\u00f0 mestu tengdir innskotavirkni, d\u00f6gum e\u00f0a vikum \u00e1\u00f0ur en gosvirknin f\u00e6r\u00f0ist til. Ranns\u00f3kn \u00e1 skj\u00e1lfta\u00f3r\u00f3a \u00ed Surtseyjargosinu s\u00fdnir a\u00f0 samband hans vi\u00f0 gosvirkni og kvikufl\u00e6\u00f0i ekki einfalt. \u00d3r\u00f3i var tilt\u00f6lulega l\u00edtill fyrstu 10-20 dagana \u00feegar kvikufl\u00e6\u00f0i var mest. \u00d3r\u00f3inn var \u00ed h\u00e1marki vikurnar \u00fear \u00e1 eftir, \u00feegar verulega haf\u00f0i degi\u00f0 \u00far kvikufl\u00e6\u00f0i. Engin fylgni finnst milli sprengivirkni og \u00f3r\u00f3a \u00e1 skemmri t\u00edmaskala (m\u00edn\u00fatur-klukkustundir). Flugsegulm\u00e6lingar \u00ed \u00fe\u00e9ttu m\u00e6lineti voru ger\u00f0ar 2021. Tv\u00edv\u00ed\u00f0 t\u00ed\u00f0nigreining, Euler-aff\u00f6ldun og l\u00edk\u00f6n af v\u00f6ldum segulfr\u00e1vikum s\u00fdnir a\u00f0 uppt\u00f6k \u00feeirra liggja a\u00f0 langmestu leyti \u00ed efstu 300 metrum jar\u00f0skorpunnar. Hraunin \u00e1 su\u00f0urhluta Surtseyjar orsaka st\u00e6rstu fr\u00e1vikin. Engin merki sj\u00e1st um a\u00f0 b\u00f3lstraberg hafi myndast \u00ed upphafi goss \u00e1 neinum gossta\u00f0anna. Ekki sj\u00e1st heldur merki um a\u00f0 umtalsvert magn innskota s\u00e9 \u00ed e\u00f0a undir t\u00faffmyndunum fr\u00e1 1963-1967. \u00deessar ni\u00f0urst\u00f6\u00f0ur sta\u00f0festa a\u00f0 tv\u00edstrun kviku var r\u00e1\u00f0andi \u00ed upphafsfasa gosvirkninnar \u00e1 sj\u00e1varbotni.<\/p>\n<p><strong>Um doktorsefni\u00f0<\/strong><\/p>\n<p>Sara lauk BA-gr\u00e1\u00f0u hennar \u00ed e\u00f0lisfr\u00e6\u00f0i en s\u00ed\u00f0an sneri h\u00fan s\u00e9r a\u00f0 jar\u00f0e\u00f0lisfr\u00e6\u00f0i og \u00fatskrifa\u00f0ist me\u00f0 meistaragr\u00e1\u00f0u fr\u00e1 h\u00e1sk\u00f3lanum \u00ed Teheran. Sara kom til \u00cdslands \u00e1ri\u00f0 2017 og h\u00f3f \u00fe\u00e1 doktorsn\u00e1m.<\/p>\n<\/div><\/div>","protected":false},"featured_media":5606,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2023-01-04T13:00:00+00:00","_phd_date_end":"2023-01-04T15:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0asalur","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"Surtseyjagosi\u00f0 1963-1967: Jar\u00f0e\u00f0lisfr\u00e6\u00f0ilegar skor\u00f0ur \u00e1 framgangi \u00feess og innri ger\u00f0 gosmyndana","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_jardedlisfraedi_sara_sayyadi","_phd_source_node_id":"391964","_phd_source_type":"vidburdir","_phd_member_id":858,"footnotes":""},"phd_school":[113,93],"phd_discipline":[114],"class_list":["post-6322","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-jardvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-jardedlisfraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6322\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/5606"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6322"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6322"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}