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class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb" class=""><span>Doner</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=H%C3%B8ytrykk" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk" class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=H%C3%B8ytrykk" title="Du oppfordres til å logge inn, men det er ikke 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mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettsted"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innhold" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Til toppen)</div> </a> </li> <li id="toc-Høytrykksrygg" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Høytrykksrygg"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Høytrykksrygg</span> </div> </a> <ul id="toc-Høytrykksrygg-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_også" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_også"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Se også</span> </div> </a> <ul id="toc-Se_også-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Høytrykk</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 17 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-17" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">17 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/H%C3%B8gtrykk" title="Høgtrykk – norsk nynorsk" lang="nn" hreflang="nn" data-title="Høgtrykk" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%B1%D8%AA%D9%81%D8%B9_%D8%AC%D9%88%D9%8A" title="مرتفع جوي – arabisk" lang="ar" hreflang="ar" data-title="مرتفع جوي" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Zona_d%27alta_pressi%C3%B3" title="Zona d'alta pressió – katalansk" lang="ca" hreflang="ca" data-title="Zona d'alta pressió" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs badge-Q70893996 mw-list-item" title=""><a href="https://cs.wikipedia.org/wiki/Tlakov%C3%A1_v%C3%BD%C5%A1e" title="Tlaková výše – tsjekkisk" lang="cs" hreflang="cs" data-title="Tlaková výše" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A5%CF%88%CE%B7%CE%BB%CF%8C_%CE%92%CE%B1%CF%81%CE%BF%CE%BC%CE%B5%CF%84%CF%81%CE%B9%CE%BA%CF%8C" title="Υψηλό Βαρομετρικό – gresk" lang="el" hreflang="el" data-title="Υψηλό Βαρομετρικό" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437798 badge-goodarticle mw-list-item" title="anbefalt artikkel-merke"><a href="https://en.wikipedia.org/wiki/High-pressure_area" title="High-pressure area – engelsk" lang="en" hreflang="en" data-title="High-pressure area" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eu badge-Q70893996 mw-list-item" title=""><a href="https://eu.wikipedia.org/wiki/Goi_presioko_gune" title="Goi presioko gune – baskisk" lang="eu" hreflang="eu" data-title="Goi presioko gune" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D8%B1%DA%A9%D8%B2_%D9%BE%D8%B1%D9%81%D8%B4%D8%A7%D8%B1" title="مرکز پرفشار – persisk" lang="fa" hreflang="fa" data-title="مرکز پرفشار" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B3%A0%EA%B8%B0%EC%95%95" title="고기압 – koreansk" lang="ko" hreflang="ko" data-title="고기압" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%89%E0%A4%9A%E0%A5%8D%E0%A4%9A_%E0%A4%A6%E0%A4%BE%E0%A4%AC_%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A5%87%E0%A4%A4%E0%A5%8D%E0%A4%B0" title="उच्च दाब क्षेत्र – hindi" lang="hi" hreflang="hi" data-title="उच्च दाब क्षेत्र" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Wilayah_bertekanan_tinggi" title="Wilayah bertekanan tinggi – indonesisk" lang="id" hreflang="id" data-title="Wilayah bertekanan tinggi" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Wy%C5%BC_baryczny" title="Wyż baryczny – polsk" lang="pl" hreflang="pl" data-title="Wyż baryczny" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/%C3%81rea_de_alta_press%C3%A3o" title="Área de alta pressão – portugisisk" lang="pt" hreflang="pt" data-title="Área de alta pressão" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/High_pressure_area" title="High pressure area – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="High pressure area" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Y%C3%BCksek_bas%C4%B1n%C3%A7" title="Yüksek basınç – tyrkisk" lang="tr" hreflang="tr" data-title="Yüksek basınç" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Khu_v%E1%BB%B1c_%C3%A1p_su%E1%BA%A5t_cao" title="Khu vực áp suất cao – vietnamesisk" lang="vi" hreflang="vi" data-title="Khu vực áp suất cao" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%AB%98%E6%B0%A3%E5%A3%93" title="高氣壓 – kinesisk" lang="zh" hreflang="zh" data-title="高氣壓" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1709543#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/H%C3%B8ytrykk" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskusjon:H%C3%B8ytrykk" rel="discussion" title="Diskusjon om innholdssiden [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Bytt språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk bokmål</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/H%C3%B8ytrykk"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&action=history" title="Tidligere sideversjoner av denne siden [h]" accesskey="h"><span>Vis historikk</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/H%C3%B8ytrykk"><span>Les</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&action=history"><span>Vis historikk</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesial:Lenker_hit/H%C3%B8ytrykk" title="Liste over alle wikisider som lenker hit [j]" accesskey="j"><span>Lenker hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesial:Relaterte_endringer/H%C3%B8ytrykk" rel="nofollow" title="Siste endringer i sider som blir lenket fra denne siden [k]" accesskey="k"><span>Relaterte endringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=no" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Spesial:Spesialsider" title="Liste over alle spesialsider [q]" accesskey="q"><span>Spesialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&oldid=22658378" title="Permanent lenke til denne versjonen av siden"><span>Permanent lenke</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&action=info" title="Mer informasjon om denne siden"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesial:Siteringshjelp&page=H%C3%B8ytrykk&id=22658378&wpFormIdentifier=titleform" title="Informasjon om hvordan denne siden kan siteres"><span>Siter denne siden</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spesial:UrlShortener&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FH%25C3%25B8ytrykk"><span>Hent forkortet URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spesial:QrCode&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FH%25C3%25B8ytrykk"><span>Last ned QR-kode</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Skriv ut / eksporter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spesial:DownloadAsPdf&page=H%C3%B8ytrykk&action=show-download-screen"><span>Last ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=H%C3%B8ytrykk&printable=yes" title="Utskriftsvennlig versjon av denne siden [p]" accesskey="p"><span>Utskriftsvennlig versjon</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> På andre prosjekter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1709543" title="Lenke til koblet dataregisterelement [g]" accesskey="g"><span>Wikidata-element</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r24553676">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}html.client-js body.skin-minerva .mw-parser-output .mbox-text-span{margin-left:23px!important}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}</style><table class="plainlinks metadata ambox ambox-content ambox-Unsourced" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/Fil:Question_book-new.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Kildeløs</b>: Denne artikkelen mangler <a href="/wiki/Wikipedia:Bruk_av_kilder" title="Wikipedia:Bruk av kilder">kildehenvisninger</a>, og opplysningene i den kan dermed være vanskelige å <a href="/wiki/Wikipedia:Verifiserbarhet" title="Wikipedia:Verifiserbarhet">verifisere</a>. Kildeløst materiale kan bli <a href="/wiki/Wikipedia:Verifiserbarhet#Bevisbyrden" title="Wikipedia:Verifiserbarhet">fjernet</a>. Helt uten kilder. <span class="date-container"><i>(<span class="date">10. okt. 2015</span>)</i></span></div></td></tr></tbody></table> <div class="hatnote dablink noexcerpt">«Høytrykk» har <a href="/wiki/H%C3%B8ytrykk_(andre_betydninger)" class="mw-disambig" title="Høytrykk (andre betydninger)">flere betydninger</a>.</div> <p>Et <b>høytrykk</b> er et område der det <a href="/wiki/Jordatmosf%C3%A6ren" class="mw-redirect" title="Jordatmosfæren">atmosfæriske</a> <a href="/wiki/Lufttrykk" class="mw-redirect" title="Lufttrykk">lufttrykket</a> er større enn i de omkringliggende områdene. I enkelte land blir disse områdene kalt <i>antisykloner</i>. Atmosfæren prøver alltid å komme i likevekt med seg selv og derfor blir faktorer som lufttrykk og <a href="/wiki/Temperatur" title="Temperatur">temperatur</a> forsøkt utjevnet. Dette fører til at luften strømmer fra høytrykk mot <a href="/wiki/Lavtrykk" title="Lavtrykk">lavtrykk</a> for å utjevne trykkforskjellen. Høytrykk er assosiert med rolige <a href="/wiki/Vind" title="Vind">vindforhold</a> og <a href="/wiki/Subsidens" title="Subsidens">subsidens</a>. Subsidens er synkende luftbevegelser som gjør at luften blir <a href="/wiki/Adiabatisk_temperaturendring" title="Adiabatisk temperaturendring">adiabatisk</a> oppvarmet. Dermed vil eventuelle sky<a href="/wiki/Dr%C3%A5pe" title="Dråpe">dråper</a> fordampe i høytrykkssituasjoner og det blir lite <a href="/wiki/Sky" title="Sky">skyer</a> på himmelen. Mangelen på skyer fører til at temperaturforskjellen mellom dag og natt ofte øker i forhold til lavtrykkssituasjoner. Om dagen vil mer solinnstråling føre til økt temperatur, mens overflaten blir avkjølt ved langbølget utstråling om natten. </p><p>Klimatologisk oppstår høytrykkene oftest i subtropiske områder (omtrent 25-35° N eller S). Over ekvator fører kraftig solinnstråling til at <a href="/wiki/Luftmasse" title="Luftmasse">luftmassene</a> blir løftet opp i høyden og ført enten nordover eller sørover. Denne luften blir så avkjølt, og begynner å synke ned mot overflaten i subtropiske strøk. Denne sirkulasjonen er kjent som <a href="/wiki/Hadleycelle" title="Hadleycelle">Hadleyceller</a>. Den synkende, tørre luften er hovedårsaken til at vi finner de fleste <a href="/wiki/%C3%98rken" title="Ørken">ørkener</a> på disse <a href="/wiki/Breddegrad" title="Breddegrad">breddegrader</a>. </p><p>Høytrykk dekker ofte et større område og har svakere overflatevind enn lavtrykk, fordi større overflate<a href="/wiki/Friksjon" title="Friksjon">friksjon</a> på <a href="/wiki/Trykkgradient" title="Trykkgradient">trykkgradienten</a> og <a href="/wiki/Corioliskraft" class="mw-redirect" title="Corioliskraft">corioliskraften</a> hindrer sirkulasjonen rundt høytrykket. Luften strømmer alltid motsatt vei rundt et høytrykk og et lavtrykk på samme halvkule. På den nordlige halvkule strømmer luften med klokka rundt et høytrykk, mens det er motsatt på den sørlige halvkule. </p><p>Noen høytrykk varer så lenge at de får spesielle navn. <a href="/wiki/Det_sibirske_h%C3%B8ytrykket" class="mw-redirect" title="Det sibirske høytrykket">Det sibirske høytrykket</a> er et tilnærmet stasjonært høytrykk som kan vare lenger enn en måned om vinteren. Her i Europa kjenner vi til <a href="/wiki/Azoreh%C3%B8ytrykket" title="Azorehøytrykket">Azorehøytrykket</a>, som amerikanerne kaller <a href="/wiki/Bermuda" title="Bermuda">Bermudahøgtrykket</a>. Dette er et kraftig høytrykk som ofte gir fint vær i <a href="/wiki/Atlanterhavet" title="Atlanterhavet">Nord-Atlanteren</a>. I de sørlige områdene av dette høytrykket vil den østlige vinden ofte føre <a href="/wiki/Havb%C3%B8lger" class="mw-redirect" title="Havbølger">havbølgene</a> inn mot østkysten av Nord-Amerika i løpet av <a href="/wiki/Orkan" title="Orkan">orkansesongen</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Høytrykksrygg"><span id="H.C3.B8ytrykksrygg"></span>Høytrykksrygg</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=H%C3%B8ytrykk&veaction=edit&section=1" title="Rediger avsnitt: Høytrykksrygg" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=H%C3%B8ytrykk&action=edit&section=1" title="Rediger kildekoden til seksjonen Høytrykksrygg"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En <i>høytrykksrygg</i> (eller <i>høytrykkskil</i>) er et oftest smalt, V-formet område med forholdsvis høyt lufttrykk, vanligvis mellom to <a href="/wiki/Lavtrykk" title="Lavtrykk">lavtrykk</a>. Den er ofte en utløper fra et høytrykk og gir mye av det samme været, men vinden kan av og til bli ganske kraftig hvis trykksystemene er sterke. Siden vinden på den nordlige halvkule blåser med urviserne rundt et høytrykk, vil du når høytrykksryggen passerer ha høytrykkets sentrum til høyre hvis du stiller deg med ryggen mot vinden. I Norge kommer værsystemene oftest fra vest eller sørvest. Under slike forhold gir høytrykksryggene gjerne avtagende vind omkring nordvest, som så dreier vestlig eller sørvestlig, og til slutt sørlig eller sørøstlig når neste lavtrykk nærmer seg. Samtidig driver ev. <a href="/wiki/Byge" title="Byge">byger</a> vekk eller går i oppløsning, og været blir lettere, ofte med full oppklarning. Som regel gjør høytrykksryggen seg gjeldende bare et døgn eller to, men av og til kan den bygge seg opp til et høytrykk (jf. <a href="/wiki/Blokkerende_h%C3%B8ytrykk" title="Blokkerende høytrykk">blokkerende høytrykk</a>) og bli liggende en stund. Hvis ryggen stikker ut fra et høytrykk i nord, f.eks. over Nord-Norge, blir vinden i Sør-Norge nordøstlig til sørøstlig, med mulighet for litt snø om vinteren østafjells (<a href="/wiki/Orografisk_nedb%C3%B8r" class="mw-redirect" title="Orografisk nedbør">orografisk nedbør</a>). – En tilsvarende utløper fra et lavtrykk kalles et <a href="/wiki/Tr%C3%A5g" title="Tråg">tråg</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=H%C3%B8ytrykk&veaction=edit&section=2" title="Rediger avsnitt: Se også" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=H%C3%B8ytrykk&action=edit&section=2" title="Rediger kildekoden til seksjonen Se også"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Lavtrykk" title="Lavtrykk">Lavtrykk</a></li> <li><a href="/wiki/Blokkerende_h%C3%B8ytrykk" title="Blokkerende høytrykk">Blokkerende høytrykk</a></li> <li><a href="/wiki/Atmosf%C3%A6risk_sirkulasjon" title="Atmosfærisk sirkulasjon">Atmosfærisk sirkulasjon</a></li> <li><a href="/wiki/Okklusjon" class="mw-redirect" title="Okklusjon">Okklusjon</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul 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