{"id":1040,"date":"2019-03-17T09:12:44","date_gmt":"2019-03-17T08:12:44","guid":{"rendered":"http:\/\/www.is0pgf.it\/?page_id=1040"},"modified":"2019-06-22T07:29:40","modified_gmt":"2019-06-22T05:29:40","slug":"il-sole","status":"publish","type":"page","link":"https:\/\/www.is0pgf.it\/?page_id=1040","title":{"rendered":"Il Sole"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1040\" class=\"elementor elementor-1040\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-02bc514 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"02bc514\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3ac8ffe\" data-id=\"3ac8ffe\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98d9654 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"98d9654\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img fetchpriority=\"high\" decoding=\"async\" width=\"580\" height=\"290\" src=\"https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/image_6983-Solar-Proton-Event.jpg\" class=\"attachment-full size-full wp-image-1043\" alt=\"\" srcset=\"https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/image_6983-Solar-Proton-Event.jpg 580w, https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/image_6983-Solar-Proton-Event-300x150.jpg 300w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">Sun Big Flare<\/h3><p class=\"elementor-image-box-description\">Foto by NASA<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0dcb442 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0dcb442\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9630547\" data-id=\"9630547\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e1264af elementor-widget elementor-widget-text-editor\" data-id=\"e1264af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il Sole \u00e8 il regista assoluto dell&#8217;Universo.<\/p>\n<p>Il nostro Pianeta ne \u00e8 inevitabilmente coinvolto a tutti i livelli, nella foto sopra viene artisticamente illustrata una eruzione solare di intensit\u00e0 elevata, si nota il grosso Flare che diffonde una quantit\u00e0 elevata di Plasma nella direzione della Terra dando origine ad una notevole distorsione del campo Geomagnetico, gran parte di questo plasma sar\u00e0 di vitale importanza per la ionizzazione degli strati Ionosferici i quali ci consentiranno di effettuare collegamenti (qso),a grande distanza (dx).<\/p>\n<p>Per noi Radioamatori il sole \u00e8 il responsabile principale della propagazione delle onde Radio, viene tenuto costantemente sotto controllo, in modo particolare questi ultimi decenni tramite l&#8217;osservazione e l&#8217;analisi dei dati rilevati dagli strumenti molto sofisticati utilizzati da diversi enti scientifici sparsi per il Mondo.<\/p>\n<p>L&#8217;Osservazione e l&#8217;andamento dei cicli solari&nbsp; del&nbsp; secolo scorso ha evidenziato il 19\u00b0&nbsp; come quello pi\u00f9 rilevante dando il suo massimo nel 1959 con flussi solari molto intensi mentre i successivi sono in diminuzione progressiva fino ad arrivare all&#8217;attuale 24\u00b0 ormai in letargo prematuramente da un anno (oggi \u00e8 il 17Mar2019).<\/p>\n<p>Quest&#8217;ultimo ciclo sta presentando un anomalia molto simile al periodo del minimo di Maunder iniziato nel 1645 dando inizio ad una piccola era glaciale conclusasi nel 1715; la particolarit\u00e0 di questo 24\u00b0 ciclo solare sta nel fatto che l&#8217;assenza di macchie solari si protrae da ormai troppo tempo e si ripercuote in scarsa propagazione delle onde radio in particolare nella porzione HF da noi utilizzata nei collegamenti a lunga distanza. Siamo in attesa dell&#8217;inizio del 25\u00b0 ciclo che dovremmo veder nascere proprio nel 2019 verso l&#8217;ultimo trimestre salvo eventuali ritardi.<\/p>\n<p>Durante questi due ultimi cicli (23\u00b0 e 24\u00b0), ho eseguito delle osservazioni nella porzione delle frequenze vhf e uhf in particolare nella propagazione troposferica e le riflessioni sporadiche dallo strato E, dove ho potuto rilevare delle variazioni inaspettate a queste altezze in quanto fino ad ora si pensava che l&#8217;attivit\u00e0 solare incideva solo sulla porzione HF. La scarsa attivit\u00e0 solare influenza anche la porzione bassa della Ionosfera in particolare lo strato troposferico che alle nostre latitudini raggiunge i 10-12km dal suolo, ricordiamoci che in questa fascia avviene la vita terrestre dove noi viviamo e dove la maggior parte dei fenomeni atmosferici hanno origine ed evoluzione.<\/p>\n<p>work in progress&#8230;.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e877c75 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e877c75\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5b9a5dd\" data-id=\"5b9a5dd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-249aa72 elementor-widget elementor-widget-image\" data-id=\"249aa72\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"474\" height=\"150\" src=\"https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/minimo-di-Maunder.jpg\" class=\"attachment-large size-large wp-image-1058\" alt=\"\" srcset=\"https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/minimo-di-Maunder.jpg 906w, https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/minimo-di-Maunder-300x95.jpg 300w, https:\/\/www.is0pgf.it\/wp-content\/uploads\/2019\/03\/minimo-di-Maunder-768x242.jpg 768w\" sizes=\"(max-width: 474px) 100vw, 474px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Pubblico dominio, <a href=\"https:\/\/commons.wikimedia.org\/w\/index.php?curid=142648\">Collegamento<\/a><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Sun Big Flare Foto by NASA Il Sole \u00e8 il regista assoluto dell&#8217;Universo. Il nostro Pianeta ne \u00e8 inevitabilmente coinvolto a tutti i livelli, nella foto sopra viene artisticamente illustrata una eruzione solare di intensit\u00e0 elevata, si nota il grosso Flare che diffonde una quantit\u00e0 elevata di Plasma nella direzione della Terra dando origine ad &hellip; <a href=\"https:\/\/www.is0pgf.it\/?page_id=1040\" class=\"more-link\">Continua la lettura di <span class=\"screen-reader-text\">Il Sole<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1040","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Il Sole - is0pgf<\/title>\n<meta name=\"description\" content=\"ARI radioamatori cagliari is0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.is0pgf.it\/?page_id=1040\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Il Sole - 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