{"id":2654,"date":"2025-05-12T12:30:00","date_gmt":"2025-05-12T12:30:00","guid":{"rendered":"https:\/\/severnisij.si\/?p=2654"},"modified":"2025-05-12T12:40:53","modified_gmt":"2025-05-12T12:40:53","slug":"kako-pogosti-so-geomagnetni-viharji-in-severni-siji-kakrsen-je-bil-v-noci-iz-10-na-11-maj-2024","status":"publish","type":"post","link":"https:\/\/severnisij.si\/index.php\/2025\/05\/12\/kako-pogosti-so-geomagnetni-viharji-in-severni-siji-kakrsen-je-bil-v-noci-iz-10-na-11-maj-2024\/","title":{"rendered":"Kako pogosti so geomagnetni viharji in severni siji kakr\u0161en je bil v no\u010di iz 10. na 11. maj 2024?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">V no\u010di iz 10. na 11. maj 2024 je na\u0161e nebo razsvetlil osupljiv severni sij, dale\u010d najlep\u0161i in najsvetlej\u0161i v ve\u010d kot 20 letih. V \u017eelji po ponovitvi spektakla je pogosto vpra\u0161anje: kako pogosti so veliki geomagnetni viharji in kdaj lahko pri\u010dakujemo ponovitev tega izjemnega nebesnega spektakla?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kako izjemen?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Jakost<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Po jakosti je geomagnetni vihar 10. maja 2024 vsekakor zelo izstopajo\u010d. Planetarni K indeks (Kp) je dosegel najvi\u0161jo mo\u017eno vrednost 9. S tem se je geomagnetni vihar uvrstil na sam vrh lestvice s <a href=\"https:\/\/severnisij.si\/index.php\/2024\/04\/01\/kako-se-vidi-severni-sij-v-sloveniji-kategorije-viharjev\/\">stopnjo G5<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"912\" height=\"480\" src=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_Kpindeks.png\" alt=\"Kp indeks med geomagnetnim viharjem 10. - 11. maja 2024, za ugotavljanje kako pogosti so veliki geomagnetni viharji. Vir: Theusner.eu\" class=\"wp-image-2658\" style=\"width:800px\" srcset=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_Kpindeks.png 912w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_Kpindeks-300x158.png 300w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_Kpindeks-768x404.png 768w\" sizes=\"(max-width: 912px) 100vw, 912px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size wp-block-paragraph\"><em>Planetarni K indeks (Kp) od 9. do 13. maja 2024. Vrednost 9 je dosegel v dveh 3-urnih intervalih in sicer 11. maja ob 00-03h in 09-12h UTC. Graf: <a href=\"http:\/\/www.theusner.eu\/terra\/aurora\/kp_archive.php?year=2024&amp;month=5&amp;day=11&amp;ndays=5\">Theusner.eu<\/a>.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Podrobnej\u0161i vpogled v geomagnetno aktivnost podaja Hp30 indeks, prakti\u010dno Kp indeks a v 30-minutni namesto 3-urni lo\u010dljivosti. <a href=\"https:\/\/kp.gfz.de\/fileadmin\/hpo-archiv\/\/2024\/png\/Hp_030_2024-05-10.png\">Najvi\u0161jo vrednost Hp30=11.3<\/a> je dosegel v \u010dasovnem intervalu 10. maj 23:00-23:30 UTC, sovpadajo\u010dim z <a href=\"https:\/\/severnisij.si\/index.php\/2024\/05\/16\/severni-sij-10-maja-2024\/\">drugim in najintenzivnej\u0161im valom aktivnosti<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"740\" height=\"225\" data-src=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_DSTindeks.png\" alt=\"DST (Disturbance Storm Time) indeks med geomagnetnim viharjem 10. - 11. maja 2024, za ugotavljanje kako pogosti so veliki geomagnetni viharji. Vir: Theusner.eu\" class=\"wp-image-2661 lazyload\" data-srcset=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_DSTindeks.png 740w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/10_11_maj_2024_DSTindeks-300x91.png 300w\" data-sizes=\"(max-width: 740px) 100vw, 740px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 740px; --smush-placeholder-aspect-ratio: 740\/225;\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size wp-block-paragraph\"><em>Najni\u017eji DST indeks je dose\u017een 11. maja ob 03h UTC z vrednstjo -406 nT. Graf: <a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_provisional\/202405\/index.html\">World Data Center for Geomagnetism, Kyoto<\/a>.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">DST indeks je po za\u010detnem skoku ob prihodu fronte izbruha CME hitro za\u010del strmo padati. Ob koncu mraka ob 20h UTC je padel na -131 nT, do 23h pa \u017ee do -339 nT. Najni\u017ejo vrednost <strong>-406 nT<\/strong> je dosegel ob 3h UTC (5h zjutraj po srednjeevropskem poletnem \u010dasu). Nato se je le po\u010dasi ve\u010dal in nad -100 nT pri\u0161el \u0161ele dva dni kasneje, 12. maja ob 16h UTC!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Trajanje<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Skupno je geomagnetni vihar trajal <strong>39 ur<\/strong>; prvi\u010d je Kp&gt;5 dosegel 10. maja v intervalu 15-18h UTC (s Kp=8-), zadnji\u010d pa 12. maja v intervalu 03-06h UTC (s Kp=7).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Obseg severnega sija<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Obseg severnega sija med geomagnetnim viharjem v no\u010di iz 10. na 11. maj 2024 je bil izjemen tako na na\u0161em nebu kot v svetovnem merilu. Pri nas je v jutranjih urah severni sij pokrival kar 3\/4 neba! \u0160e ve\u010d, severni sij je tokrat bil viden globoko v tropskih krajih, z opazovanji svetlega severnega sija celo v Namibiji in tihomorski Novi Kaledoniji. To je na le 23\u00b0 geomagnetne \u0161irine!<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-wp-embed is-provider-severnisij-si wp-block-embed-severnisij-si\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"X8GImMU5Do\"><a href=\"https:\/\/severnisij.si\/index.php\/severni-in-juzni-sij-10-in-11-maja-2024-vidna-iz-tropskih-krajev\/\">Severni in ju\u017eni sij 10. in 11. maja 2024 vidna iz tropskih krajev<\/a><\/blockquote><iframe class=\"wp-embedded-content lazyload\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Severni in ju\u017eni sij 10. in 11. maja 2024 vidna iz tropskih krajev&#8221; &#8212; Severnisij.si\" data-src=\"https:\/\/severnisij.si\/index.php\/severni-in-juzni-sij-10-in-11-maja-2024-vidna-iz-tropskih-krajev\/embed\/#?secret=D9Y0pyCRAX#?secret=X8GImMU5Do\" data-secret=\"X8GImMU5Do\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-load-mode=\"1\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Kako pogosti so veliki geomagnetni viharji?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Primerjava z viharji v 25. son\u010devem ciklu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Veliki geomagnetni vihar v no\u010di iz 10. na 11. maj 2024 je najve\u010dji v 25. son\u010devem ciklu doslej. Po mo\u010di je primerljiv \u0161e veliki geomagnetni vihar v no\u010di iz 10. na 11. oktobra 2024, ki je bil pribli\u017eno 20% manj intenziven. Ostali geomagnetni viharji tega cikla doslej so bistveno manj\u0161i.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:16px\"><strong>Najmo\u010dnej\u0161i geomagnetni viharji v trenutnem, 25. son\u010devem ciklu (doslej).<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Mesto<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Datum<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>DSTmin (nT)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Kp<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>G stopnja<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/05\/16\/severni-sij-10-maja-2024\/\">10. &#8211; 11. maj 2024<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-406<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/10\/22\/severni-sij-10-oktobra-2024\/\">10. &#8211; 11. oktober 2024<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-333<\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2025\/01\/05\/severni-sij-1-januarja-2025\/\">1. januar 2025<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-215<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/04\/03\/severni-sij-23-aprila-2023\/\">23. &#8211; 24. april 2023<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-213<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/08\/13\/severni-sij-12-avgusta-2024\/\">11. &#8211; 12. avgust 2024<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-203<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/04\/03\/severni-sij-5-novembra-2023\/\">5. november 2023<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-172<\/td><td class=\"has-text-align-center\" data-align=\"center\">7+<\/td><td class=\"has-text-align-center\" data-align=\"center\">G3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/04\/03\/severni-sij-23-marca-2023\/\">23. &#8211; 24. marec 2023<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-163<\/td><td class=\"has-text-align-center\" data-align=\"center\">8+<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/10\/10\/severni-sij-8-oktobra-2024\/\">8. oktober 2024<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">-153<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td class=\"has-text-align-center\" data-align=\"center\">G3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">27. februar 2023<\/td><td class=\"has-text-align-center\" data-align=\"center\">-132<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td class=\"has-text-align-center\" data-align=\"center\">G3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10-<\/td><td class=\"has-text-align-center\" data-align=\"center\">24. marec 2024<\/td><td class=\"has-text-align-center\" data-align=\"center\">-128<\/td><td class=\"has-text-align-center\" data-align=\"center\">8+<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Veliki geomagnetni vihar v no\u010di iz 10. na 11. maj 2024 je drugi najve\u010dji v zadnjih treh son\u010devih ciklih (#23, #24, #25). Po DST indeksu je bil bolj intenziven le veliki geomagnetni vihar 20. novembra 2003. Le malce \u0161ibkej\u0161ih je bilo kar nekaj geomagnetnih viharjev. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Veliki viharji v zadnjih 25 letih<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Zanimiva je tudi \u010dasovna razporeditev viharjev v spodnji tabeli: le dva v 25. son\u010devem ciklu, nobenega (!!) med 24. son\u010devim ciklom in kar deset med 23. son\u010devim ciklom. \u0160tevilo velikih geomagnetnih viharjev sovpada z velikostjo oz. aktivnostjo posameznega son\u010devega cikla. Najaktivnej\u0161i je bil 23. cikel, najmanj aktiven 24. cikel, medtem ko je 25. cikel po velikosti med obema.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:16px\"><strong>Geomagnetni superviharji (DSTmin \u2264 -250 nT, po (<a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/full\/10.1029\/2018JA026425\">Meng in sod., 2019<\/a>)) v zadnjih treh son\u010devih ciklih, od leta 2000 naprej.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Mesto<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Datum<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>DSTmin (nT)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Kp<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>G stopnja<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.<\/td><td class=\"has-text-align-center\" data-align=\"center\">20. november 2003<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200311\/index.html\">-422<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.<\/td><td class=\"has-text-align-center\" data-align=\"center\">10. &#8211; 11. maj 2024<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_provisional\/202405\/index.html\">-406<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.<\/td><td class=\"has-text-align-center\" data-align=\"center\">31. marec 2001<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200103\/index.html\">-387<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4.<\/td><td class=\"has-text-align-center\" data-align=\"center\">30. &#8211; 31. oktober 2003<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200310\/index.html\">-383<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5.<\/td><td class=\"has-text-align-center\" data-align=\"center\">8. november 2004<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200411\/index.html\">-374<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6.<\/td><td class=\"has-text-align-center\" data-align=\"center\">29. &#8211; 30. oktober 2003<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200310\/index.html\">-353<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7.<\/td><td class=\"has-text-align-center\" data-align=\"center\">10. &#8211; 11. oktober 2024<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_provisional\/202410\/index.html\">-333<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8.<\/td><td class=\"has-text-align-center\" data-align=\"center\">15. &#8211; 16. julij 2000<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200007\/index.html\">-300<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">6. november 2001<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200111\/index.html\">-292<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10.<\/td><td class=\"has-text-align-center\" data-align=\"center\">6. &#8211; 7. april 2000<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200004\/index.html\">-292<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">11.<\/td><td class=\"has-text-align-center\" data-align=\"center\">11. april 2001<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200104\/index.html\">-271<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">8+<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">12.<\/td><td class=\"has-text-align-center\" data-align=\"center\">10. november 2004<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200411\/index.html\">-263<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Tako je v zadnjih 25 letih bil le en mo\u010dnej\u0161i geomagnetni vihar in vsaj trije ali \u0161tirje le malce \u0161ibkej\u0161i, primerljivi. Kako pogosti pa so mo\u010dnej\u0161i geomagnetni viharji?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Med najmo\u010dnej\u0161imi viharji v zadnjih 125 letih<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">V zadnjih 125 letih se je skupno zgodilo enajst geomagnetnih viharjev, mo\u010dnej\u0161ih od viharja 10. &#8211; 11. maja 2024. Med njimi so \u0161tevilni bistveno mo\u010dnej\u0161i. Dale\u010d najmo\u010dnej\u0161i je vihar 15. maja 1921, geomagnetni vihar Carringtonovega kalibra, kakr\u0161nega odtedaj \u0161e nismo videli. Tretji na seznamu, veliki vihar 13. marca 1989, je znan po tem da je povzro\u010dil izpad elektroenergetskega omre\u017eja Hydro-Quebec v Kanadi.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:16px\"><strong>Najmo\u010dnej\u0161i geomagnetni viharji od leta 1900 do danes.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Mesto<\/td><td class=\"has-text-align-center\" data-align=\"center\">Datum<\/td><td class=\"has-text-align-center\" data-align=\"center\">DSTmin (nT)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Kp<\/td><td class=\"has-text-align-center\" data-align=\"center\">G stopnja<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cikel<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.<\/td><td class=\"has-text-align-center\" data-align=\"center\">15. maj 1921<\/td><td class=\"has-text-align-center\" data-align=\"center\">-900 \u00b1 150<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_15\">15<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.<\/td><td class=\"has-text-align-center\" data-align=\"center\">25. september 1909<\/td><td class=\"has-text-align-center\" data-align=\"center\">-595<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_14\">14<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.<\/td><td class=\"has-text-align-center\" data-align=\"center\">13. marec 1989<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/198903\/index.html\">-589<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_22\">22<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4.<\/td><td class=\"has-text-align-center\" data-align=\"center\">31. oktober 1903<\/td><td class=\"has-text-align-center\" data-align=\"center\">-531<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_14\">14<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5.<\/td><td class=\"has-text-align-center\" data-align=\"center\">28. marec 1946<\/td><td class=\"has-text-align-center\" data-align=\"center\">-512<\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_18\">18<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6.<\/td><td class=\"has-text-align-center\" data-align=\"center\">1. marec 1941<\/td><td class=\"has-text-align-center\" data-align=\"center\">-469<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_17\">17<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7.<\/td><td class=\"has-text-align-center\" data-align=\"center\">5. julij 1941<\/td><td class=\"has-text-align-center\" data-align=\"center\">-447<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_17\">17<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8.<\/td><td class=\"has-text-align-center\" data-align=\"center\">15. julij 1959<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/195907\/index.html\">-429<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_19\">19<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">9.<\/td><td class=\"has-text-align-center\" data-align=\"center\">14. september 1957<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/195709\/index.html\">-427<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_19\">19<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10.<\/td><td class=\"has-text-align-center\" data-align=\"center\">11. februar 1958<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/195802\/index.html\">-426<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_19\">19<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">11.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/04\/03\/severni-sij-20-novembra-2003\/\">20. november 2003<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_final\/200311\/index.html\">-422<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9-<\/td><td class=\"has-text-align-center\" data-align=\"center\">G4<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_23#:~:text=Solar%20cycle%2023%20was%20the,and%20ending%20in%20December%202008.\">23<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">12.<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/severnisij.si\/index.php\/2024\/05\/16\/severni-sij-10-maja-2024\/\">10. &#8211; 11. maj 2024<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/wdc.kugi.kyoto-u.ac.jp\/dst_provisional\/202405\/index.html\">-406<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><td class=\"has-text-align-center\" data-align=\"center\">G5<\/td><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Solar_cycle_25#:~:text=Solar%20cycle%2025%20is%20the,to%20continue%20until%20about%202030.\">25<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kdaj lahko pri\u010dakujemo naslednjega?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Kdaj lahko pri\u010dakujemo naslednji podobno mo\u010den geomagnetni vihar? To je zelo aktualno vpra\u0161anje. Mo\u010dni geomagnetni viharji niso le izjemne svetlobne predstave, ampak lahko predstavljajo tudi resno gro\u017enjo navigacijski, telekomunikacijskim in elektroenergetskim sistemom. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">V zadnjih 125 letih se je zgodilo enajst mo\u010dnej\u0161ih geomagnetnih viharjev od viharja 10. &#8211; 11. maja 2024. Tako lahko tak\u0161en ali mo\u010dnej\u0161i vihar v povpre\u010dju pri\u010dakujemo enkat vsakih 10 let oz. enkrat na son\u010dev cikel. Pojavljanje ni \u010dasovno enakomerno, oz. homogeno. Pogosteje se pojavljajo med mo\u010dnej\u0161imi son\u010devimi cikli. Tako so se kar trije od dvanajstih pojavili v izjemno aktivnem 19. son\u010devem ciklu. Med \u0161ibkima 16. in 24. ciklom pa jih sploh ni bilo. 25. son\u010dev cikel je pribli\u017eno povpre\u010den oz. malce pod povpre\u010djem son\u010devih ciklov od leta 1750 naprej.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"905\" data-src=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/solar-cycle-sunspot-numb-1024x905.jpg\" alt=\"\" class=\"wp-image-2692 lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/905;width:800px\" data-srcset=\"https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/solar-cycle-sunspot-numb-1024x905.jpg 1024w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/solar-cycle-sunspot-numb-300x265.jpg 300w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/solar-cycle-sunspot-numb-768x678.jpg 768w, https:\/\/severnisij.si\/wp-content\/uploads\/2025\/05\/solar-cycle-sunspot-numb.jpg 1200w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-small-font-size wp-block-paragraph\"><em>Stanje 25. son\u010devega cikla v maju 2025. Graf: <a href=\"https:\/\/www.swpc.noaa.gov\/products\/solar-cycle-progression\">NOAA SWPC.<\/a><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Mo\u010dni geomagnetni viharji se pojavljajo ve\u010dinoma med son\u010devim maksimumom in v upadajo\u010dem delu cikla. <a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/full\/10.1029\/2018JA026425\">Raziskava<\/a> mo\u010dnih geomagnetnih viharjev med leti 1957 in 2019 je pokazala, da je 46% viharjev zgodilo med maksimumom in 44% v upadajo\u010dem delu cikla. Le 8% viharjev se je zgodilo med rasto\u010dim delom v cikla in le 2% med son\u010devim minimumom. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Obstajajo namigi, da so lihi son\u010devi cikli povezani z ve\u010d son\u010devimi bli\u0161\u010di in mo\u010dnimi geomagnetnimi viharji. Med najmo\u010dnej\u0161imi geomagnetnimi viharji od leta 1900 se jih je 8 zgodilo med lihimi cikli in le 4 med sodimi cikli.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">V letu 2025 vstopamo v upadajo\u010di del 25. son\u010devega cikla. Zagotovo nas v prihodnjih letih \u010daka \u0161e obilo son\u010deve in geomagnetne aktivnosti. Statistika sicer narekuje, da smo z velikim geomagnetnim viharjem 10. &#8211; 11. maja 2024 morda \u017ee porabili kvoto za 25. son\u010dev cikel. Morda nam bo liha \u0161tevilka son\u010devega cikla pomagala. Bomo videli \u0161e en tak vihar? Morda. Zagotovo pa lahko v prihodnjih letih pri\u010dakujemo ve\u010d mo\u010dnih geomagnetnih viharjev, ki se mu bodo po jakosti pribli\u017eali.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V no\u010di iz 10. na 11. maj 2024 je na\u0161e nebo razsvetlil osupljiv severni sij, dale\u010d najlep\u0161i in najsvetlej\u0161i v ve\u010d kot 20 letih. V \u017eelji po ponovitvi spektakla je pogosto vpra\u0161anje: kako pogosti so veliki geomagnetni viharji in kdaj lahko pri\u010dakujemo ponovitev tega izjemnega nebesnega spektakla? Kako izjemen? Jakost Po jakosti je geomagnetni vihar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2680,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2654","post","type-post","status-publish","format-standard","has-post-thumbnail","category-novice-in-blog","czr-hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kako pogosti so veliki geomagnetni viharji kot je bil 10. maja 2024<\/title>\n<meta name=\"description\" content=\"Kako pogosti so veliki geomagnetni viharji kakr\u0161en je bil 10. maja 2024, kako kmalu lahko pri\u010dakujemo ponovitev tega spektakla?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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