{"id":5432,"date":"2011-03-07T09:37:11","date_gmt":"2011-03-07T08:37:11","guid":{"rendered":"http:\/\/www.slometeo.net\/zaplana\/blog\/?p=5432"},"modified":"2011-11-06T19:02:43","modified_gmt":"2011-11-06T18:02:43","slug":"temperaturne-razmere-v-mraziscu-dolinca-leta-2010","status":"publish","type":"post","link":"http:\/\/www.slometeo.net\/zaplana\/blog\/?p=5432","title":{"rendered":"Temperaturne razmere v mrazi\u00c5\u00a1\u00c4\u008du Dolinca leta 2010"},"content":{"rendered":"

V mrazi\u00c5\u00a1\u00c4\u008du Dolinca potekajo stalne meritve temperature od leta 2004.\u00c2\u00a0Za to kra\u00c5\u00a1ko vrta\u00c4\u008do, ki le\u00c5\u00bei 21 m ni\u00c5\u00beje in 150 m\u00c2\u00a0stran od\u00c2\u00a0meteorolo\u00c5\u00a1ke postaje Zaplana,\u00c2\u00a0so zna\u00c4\u008dilne\u00c2\u00a0mrazi\u00c5\u00a1\u00c4\u008dne razmere. Mrazi\u00c5\u00a1\u00c4\u008de je odprtega in travni\u00c5\u00a1kega tipa z velikimi temperaturnimi nihanji\u00c2\u00a0med dnevom in no\u00c4\u008djo ter zelo nizkimi no\u00c4\u008dnimi temperaturami, medtem ko so najvi\u00c5\u00a1je dnevne temperature v mrazi\u00c5\u00a1\u00c4\u008du\u00c2\u00a0ve\u00c4\u008dji del leta podobne tistim v neposredni okolici. V Dolinci potekajo ve\u00c4\u008dletne meritve temperature, dodatno vrednost pa predstavljajo tudi meritve temperature nad samim mrazi\u00c5\u00a1\u00c4\u008dem, saj je s\u00c2\u00a0tem mo\u00c5\u00bena medsebojna primerjava obeh merilnih mest. Hkratne meritve v mrazi\u00c5\u00a1\u00c4\u008du in nad njim\u00c2\u00a0so posebnost\u00c2\u00a0v slovenskem prostoru. Raziskovanje mrazi\u00c5\u00a1\u00c4\u008d je pomembno iz vidika kmetijstva, prometa, nenazadnje tudi iz vidika na\u00c4\u008drtovanja rabe prostora. Zlasti na Notranjskem,\u00c2\u00a0v pokrajini z veliko kra\u00c5\u00a1kega reliefa in konkavnih reliefnih oblik prihaja do stika poselitve\u00c2\u00a0s hladnimi mrazi\u00c5\u00a1\u00c4\u008di,\u00c2\u00a0v katerih\u00c2\u00a0je veliko temperaturnih prehodov pod in nad 0 \u00c2\u00b0C. Vi\u00c5\u00a1ja vla\u00c5\u00benost ozra\u00c4\u008dja, pogostej\u00c5\u00a1e pojavljanje megle in dalj\u00c5\u00a1e trajanje s sne\u00c5\u00beno odejo so le posledice temperaturne inverzije v mrazi\u00c5\u00a1\u00c4\u008du. Mrazi\u00c5\u00a1\u00c4\u008da pa\u00c2\u00a0se od okolice ne razlikujejo le po klimatskih razmerah, temve\u00c4\u008d tudi po samo\u00c4\u008distilnih sposobnostih ozra\u00c4\u008dja. Pogosta temperaturna inverzija v mrazi\u00c5\u00a1\u00c4\u008dih namre\u00c4\u008d onemogo\u00c4\u008da vertikalno izmenjavo zraka, s tem pa lahko \u00c5\u00bee manj\u00c5\u00a1i vir onesna\u00c5\u00beenja v mrazi\u00c5\u00a1\u00c4\u008du z majhno prostornino\u00c2\u00a0povzro\u00c4\u008di pove\u00c4\u008dano koncentracijo \u00c5\u00a1kodljivih polutantov v ozra\u00c4\u008dju.<\/p>\n

Izdelana\u00c2\u00a0je bila\u00c2\u00a0primerjava temperatur za leto 2010\u00c2\u00a0med mrazi\u00c5\u00a1\u00c4\u008dem Dolinca\u00c2\u00a0in zgornjo meteorolo\u00c5\u00a1ko postajo Zaplana. Meritve temperature\u00c2\u00a0na zgornji postaji potekajo na minuto, v mrazi\u00c5\u00a1\u00c4\u008du pa na pet minut in tako je bilo\u00c2\u00a0v celotnem letu za ve\u00c4\u008d kot pol milijona\u00c2\u00a0izmerjenih podatkov. Kot je razvidno iz primerjave je temperatura\u00c2\u00a0v mrazi\u00c5\u00a1\u00c4\u008du ob\u00c2\u00a0obla\u00c4\u008dnih ali vetrovnih dneh enaka\u00c2\u00a0temperaturi na zgornji meteorolo\u00c5\u00a1ki postaji, izrazito pa izstopajo\u00c2\u00a0obdobja jasnih no\u00c4\u008di, saj se takrat temperaturne razlike med mrazi\u00c5\u00a1\u00c4\u008dem in okolico izrazito pove\u00c4\u008dajo.<\/p>\n

<\/em>\"\"<\/a><\/em>Potek temperature v mrazi\u00c5\u00a1\u00c4\u008du Dolinca in\u00c2\u00a0na meteorolo\u00c5\u00a1ki postaji Zaplana v letu 2010.<\/em><\/p>\n

V\u00c2\u00a0hladni polovici je lahko v mrazi\u00c5\u00a1\u00c4\u008du\u00c2\u00a0celo sredi dneva hladneje kot v okolici. Ta pojav je v\u00c4\u008dasih opazen tudi ob obla\u00c4\u008dnem vremenu s padavinami, ko jugozahodni veter dose\u00c5\u00bee zgornjo postajo,\u00c2\u00a0ne pa tudi mrazi\u00c5\u00a1\u00c4\u008da. Tak primer se je zgodil ob obeh mo\u00c4\u008dnih odjugah okoli 8. in 23. decembra, ko je temperatura v mrazi\u00c5\u00a1\u00c4\u008du mo\u00c4\u008dno nihala v odvisnosti od jugozahodnega vetra. Mesec november je bil obla\u00c4\u008den mesec, kar potrjujejo tudi precej majhna temperaturna nihanja v mrazi\u00c5\u00a1\u00c4\u008du. Zaradi suhega in jasnega\u00c2\u00a0vremena so bile v povpre\u00c4\u008dju\u00c2\u00a0najve\u00c4\u008dje temperaturne\u00c2\u00a0amplitude zabele\u00c5\u00beene v juniju in juliju. Najni\u00c5\u00beja temperatura v poletju 2010 je bila -0,2 \u00c2\u00b0C,\u00c2\u00a0izmerjena 31. avgusta, sicer pa se je\u00c2\u00a0v poletju temperatura\u00c2\u00a0kar nekajkrat spustila\u00c2\u00a0v bli\u00c5\u00beino\u00c2\u00a0ledi\u00c5\u00a1\u00c4\u008da. V sredini junija\u00c2\u00a0so bile na zgornji meteorolo\u00c5\u00a1ki postaji zaradi zati\u00c5\u00a1ne lege ob jugozahodnem vetru vi\u00c5\u00a1je dnevne temperature, kot v bolj prevetrenem mrazi\u00c5\u00a1\u00c4\u008du.<\/p>\n

Zelo povedna je tudi\u00c2\u00a0primerjava \u00c5\u00a1tevila zna\u00c4\u008dilnih meteorolo\u00c5\u00a1kih dni, v katerih temperatura\u00c2\u00a0dose\u00c5\u00bee dolo\u00c4\u008den temperaturni prag. Na grafikonu so prikazani doslej obdelani temperaturni podatki iz mrazi\u00c5\u00a1\u00c4\u008da, ni pa \u00c5\u00a1e upo\u00c5\u00a1tevano kasnej\u00c5\u00a1e\u00c2\u00a0umerjanje termometra za -0,3 \u00c2\u00b0C.\u00c2\u00a0V primerjavi z zgornjo meteorolo\u00c5\u00a1ko postajo je v mrazi\u00c5\u00a1\u00c4\u008du veliko ve\u00c4\u008d hladnih\u00c2\u00a0dni, ko pade temperatura pod ledi\u00c5\u00a1\u00c4\u008de. Na 150 m razdalje\u00c2\u00a0in\u00c2\u00a021 m vi\u00c5\u00a1inske razlike\u00c2\u00a0se torej obdobje z negativnimi temperaturami podalj\u00c5\u00a1a za\u00c2\u00a0dva do tri mesece.\u00c2\u00a0\u00c2\u00a0\u00c2\u00a0Ve\u00c4\u008d je dni s temperaturo pod -10 \u00c2\u00b0C, hkrati pa tudi toplih dni s temperaturo nad 25 \u00c2\u00b0C. V mrazi\u00c5\u00a1\u00c4\u008du\u00c2\u00a0je\u00c2\u00a0 v primerjavi z okolico vi\u00c5\u00a1ja temperatura ob vzhodnem vetru, ki mrazi\u00c5\u00a1\u00c4\u008da ne dose\u00c5\u00bee in kjer se ozra\u00c4\u008dje bolj segreje. Ob jugozahodnem vetru je ozra\u00c4\u008dje bolj preme\u00c5\u00a1ano in v mrazi\u00c5\u00a1\u00c4\u008du je lahko\u00c2\u00a0celo hladneje kot na zgornji postaji.\u00c2\u00a0V letu 2010 je vro\u00c4\u008dinski val sovpadal z jugozahodnimi vetrovih in tako je bilo na zgornji meteorolo\u00c5\u00a1ki\u00c2\u00a0postaji zabele\u00c5\u00beeno celo ve\u00c4\u008d vro\u00c4\u008dih\u00c2\u00a0dni s temperaturo nad 30 \u00c2\u00b0C, kot v mrazi\u00c5\u00a1\u00c4\u008du. Povpre\u00c4\u008dna letna temperatura je bila v mrazi\u00c5\u00a1\u00c4\u008du najni\u00c5\u00beja ravno v minulem letu, hkrati pa je bilo \u00c5\u00a1tevilo hladnih dni najmanj\u00c5\u00a1e v primerjavi\u00c2\u00a0s preteklimi\u00c2\u00a0leti. Razliko lahko pojasnimo\u00c2\u00a0s tipom vremena, ki je prevladoval v letu 2010. Najve\u00c4\u008dje temperaturne razlike med mrazi\u00c5\u00a1\u00c4\u008di in okolico namre\u00c4\u008d niso v obdobjih hladnega vremena, temve\u00c4\u008d v suhih in jasnih obdobjih, ki pa so najve\u00c4\u008dkrat tudi topla. Takrat\u00c2\u00a0so no\u00c4\u008dne temperature zaradi morebitnega vetra na splo\u00c5\u00a1no visoke, v zati\u00c5\u00a1nih\u00c2\u00a0mrazi\u00c5\u00a1\u00c4\u008dih pa so precej ni\u00c5\u00beje. Primer je rekordno suh in topel april 2007, ko se je na zgornji meteorolo\u00c5\u00a1ki postaji le enkrat ohladilo pod 0 \u00c2\u00b0C, v mrazi\u00c5\u00a1\u00c4\u008du Dolinca\u00c2\u00a0pa kar v 25. dneh. Toliko hladnih dni v mrazi\u00c5\u00a1\u00c4\u008du ni bilo niti v precej\u00c2\u00a0hladnej\u00c5\u00a1em marcu 2007.<\/p>\n

\"\"<\/a>\u00c5\u00a0tevilo zna\u00c4\u008dilnih meteorolo\u00c5\u00a1kih dni na meteorolo\u00c5\u00a1ki postaji Zaplana in v mrazi\u00c5\u00a1\u00c4\u008du Dolinca.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

V mrazi\u00c5\u00a1\u00c4\u008du Dolinca potekajo stalne meritve temperature od leta 2004.\u00c2\u00a0Za to kra\u00c5\u00a1ko vrta\u00c4\u008do, ki le\u00c5\u00bei 21 m ni\u00c5\u00beje in 150 m\u00c2\u00a0stran od\u00c2\u00a0meteorolo\u00c5\u00a1ke postaje Zaplana,\u00c2\u00a0so zna\u00c4\u008dilne\u00c2\u00a0mrazi\u00c5\u00a1\u00c4\u008dne razmere. Mrazi\u00c5\u00a1\u00c4\u008de je odprtega in travni\u00c5\u00a1kega tipa z velikimi temperaturnimi nihanji\u00c2\u00a0med dnevom in no\u00c4\u008djo ter zelo nizkimi no\u00c4\u008dnimi temperaturami, medtem ko so najvi\u00c5\u00a1je dnevne temperature v mrazi\u00c5\u00a1\u00c4\u008du\u00c2\u00a0ve\u00c4\u008dji del leta podobne […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5432"}],"collection":[{"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5432"}],"version-history":[{"count":55,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5432\/revisions"}],"predecessor-version":[{"id":6381,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=\/wp\/v2\/posts\/5432\/revisions\/6381"}],"wp:attachment":[{"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5432"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.slometeo.net\/zaplana\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}