{"id":245633,"date":"2023-02-26T11:52:40","date_gmt":"2023-02-26T10:52:40","guid":{"rendered":"https:\/\/climatescience.press\/?p=245633"},"modified":"2023-02-26T11:52:46","modified_gmt":"2023-02-26T10:52:46","slug":"a-chain-reaction-explosion-on-the-sun","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=245633","title":{"rendered":"A \u201eChain Reaction\u201c Explosion on the Sun"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"489\" data-attachment-id=\"245638\" data-permalink=\"https:\/\/climatescience.press\/?attachment_id=245638\" data-orig-file=\"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?fit=836%2C566&amp;ssl=1\" data-orig-size=\"836,566\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"0Screenshot-2023-02-26-115130\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?fit=723%2C489&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?resize=723%2C489&#038;ssl=1\" alt=\"\" class=\"wp-image-245638\" srcset=\"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?w=836&amp;ssl=1 836w, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?resize=300%2C203&amp;ssl=1 300w, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?resize=768%2C520&amp;ssl=1 768w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From <a href=\"http:\/\/spaceweatherarchive.com\/2023\/02\/26\/a-chain-reaction-explosion-on-the-sun\/\">Spaceweather.com<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By <a href=\"https:\/\/spaceweatherarchive.com\/author\/drtonyphillips\/\">DR.TONY PHILLIPS<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Feb. 25, 2023:<\/strong>\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A magnetic filament connected to sunspot AR3229 erupted on Feb. 24th, producing a chain reaction of events that could lead to a geomagnetic storm on Earth. The action began at 1949 UTC when the filament rose up and sliced through the sun\u2019s atmosphere:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/i0.wp.com\/spaceweather.com\/images2023\/24feb23\/slice.gif?ssl=1\"><img decoding=\"async\" src=\"https:\/\/i0.wp.com\/spaceweather.com\/images2023\/24feb23\/slice_strip_opt.gif?ssl=1\" alt=\"\"\/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The violent liftoff destabilized sunspot AR3229, sparking a&nbsp;<a href=\"https:\/\/spaceweather.com\/images2023\/24feb23\/longdurationflare.jpg\">long duration M3-class<\/a>&nbsp;solar flare (2030 UTC). Radiation from the flare, in turn, ionized the top of Earth\u2019s atmosphere, blacking out shortwave radio transmissions around the Pacific Ocean:&nbsp;<a href=\"https:\/\/spaceweather.com\/images2023\/24feb23\/blackoutmap.jpg\">map<\/a>. Mariners and ham radio operators may have noticed loss of signal at frequencies below 25 MHz for as much as an hour after the explosion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Next, a CME emerged from the blast site. Coronagraph images from SOHO show a lopsided halo with an Earth-directed component:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i0.wp.com\/spaceweather.com\/images2023\/24feb23\/cme_c3_anim_opt.gif?ssl=1\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Type II solar radio emissions from the leading edge of the CME suggest a departure speed of 1200 km\/s (2.7 million mph). The flank of the fast-moving cloud could reach Earth on Feb. 27th. NOAA analysts are modeling the CME now, so stay tuned for a refined forecast.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There\u2019s more: Shock waves inside the CME accelerated protons to nearly light speed, and they have&nbsp;<a href=\"https:\/\/spaceweather.com\/images2023\/24feb23\/detectedthem.jpg\">already reached Earth<\/a>. Our planet\u2019s magnetic field is funneling the particles toward the poles where a second type of radio blackout is underway\u2013a polar cap absorption (<a href=\"https:\/\/www.windows2universe.org\/spaceweather\/polar_com.html\">PCA<\/a>) event. Airplanes flying over these regions may find that their shortwave radios won\u2019t work due to the ionizing effect of infalling protons:&nbsp;<a href=\"https:\/\/spaceweather.com\/images2023\/24feb23\/pca_map.jpg\">map<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>This story was brought to you by&nbsp;<a href=\"https:\/\/spaceweather.com\/\">Spaceweather.com<\/a><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A magnetic filament connected to sunspot AR3229 erupted on Feb. 24th, producing a chain reaction of events that could lead to a geomagnetic storm on Earth. The action began at 1949 UTC when the filament rose up and sliced through the sun\u2019s atmosphere<\/p>\n","protected":false},"author":121246920,"featured_media":245638,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":{"0":"post-245633","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","9":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/02\/0Screenshot-2023-02-26-115130.png?fit=836%2C566&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-11TP","jetpack-related-posts":[{"id":195815,"url":"https:\/\/climatescience.press\/?p=195815","url_meta":{"origin":245633,"position":0},"title":"Dead Sunspot Explodes, Hurls Debris Toward Earth","author":"uwe.roland.gross","date":"13\/04\/2022","format":false,"excerpt":"April 11, 2022:\u00a0 The corpse of old sunspot AR2987 exploded today, April 11, 2022, hurling debris directly toward Earth. NASA\u2019s Solar Dynamics Observatory recorded the eruption: The\u00a0S-shaped\u00a0magnetic filament at the base of the explosion is a classic \u201esigmoid structure.\u201c Solar magnetic fields often assume this shape just before they explode.\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/00Screenshot-2022-04-13-205030.png?fit=1048%2C390&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/00Screenshot-2022-04-13-205030.png?fit=1048%2C390&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/00Screenshot-2022-04-13-205030.png?fit=1048%2C390&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/00Screenshot-2022-04-13-205030.png?fit=1048%2C390&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":195371,"url":"https:\/\/climatescience.press\/?p=195371","url_meta":{"origin":245633,"position":1},"title":"\u201eCanyon of Fire\u201c CME","author":"uwe.roland.gross","date":"10\/04\/2022","format":false,"excerpt":"April 3, 2022:\u00a0A filament of magnetism whipsawed out of the sun\u2019s atmosphere today. On the way out it carved a gigantic\u00a0canyon of fire. NASA\u2019s Solar Dynamics Observatory recorded the eruption: The glowing walls of the canyon are at least 20,000 km high and 10 times as long. They trace the\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/0cof_anim.gif?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/0cof_anim.gif?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/0cof_anim.gif?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/04\/0cof_anim.gif?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":213777,"url":"https:\/\/climatescience.press\/?p=213777","url_meta":{"origin":245633,"position":2},"title":"Dark Plasma Eruption from a Reversed Polarity Sunspot","author":"uwe.roland.gross","date":"16\/08\/2022","format":false,"excerpt":"Traveling faster than 600 km\/s (1.3 million mph), the plume tore through the sun\u2019s outer atmosphere, creating a coronal mass ejection (CME).","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/08\/0dramatic_strip.gif?fit=520%2C382&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":422345,"url":"https:\/\/climatescience.press\/?p=422345","url_meta":{"origin":245633,"position":3},"title":"X-CLASS SOLAR FLARE \u2013 CME headed toward Earth","author":"uwe.roland.gross","date":"21\/01\/2026","format":false,"excerpt":"A full-halo CME is heading for Earth following a long-duration X1.9-class solar flare on Jan. 18th. The CME\u2019s\u00a0arrival on Jan. 20th\u00a0could spark strong geomagnetic storms with\u00a0auroras at mid-latitudes.","rel":"","context":"In \"auroras at mid-latitudes\"","block_context":{"text":"auroras at mid-latitudes","link":"https:\/\/climatescience.press\/?tag=auroras-at-mid-latitudes"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/00Screenshot-2026-01-21-090947.png?fit=965%2C954&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/00Screenshot-2026-01-21-090947.png?fit=965%2C954&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/00Screenshot-2026-01-21-090947.png?fit=965%2C954&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/00Screenshot-2026-01-21-090947.png?fit=965%2C954&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":171377,"url":"https:\/\/climatescience.press\/?p=171377","url_meta":{"origin":245633,"position":4},"title":"A CANNIBAL CME","author":"uwe.roland.gross","date":"05\/11\/2021","format":false,"excerpt":"Nov. 2, 2021:\u00a0The CME heading for Earth is a cannibal. SOHO coronagraphs caught the storm cloud leaving the sun on Nov. 2nd following a\u00a0slow-motion solar flare\u00a0(M1.7) in the magnetic canopy of sunspot AR2891: This CME is a cannibal because it ate others of its own kind.\u00a0Cannibal CMEs\u00a0are fast coronal mass\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2021\/11\/0enlil2_strip_opt.gif?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":193917,"url":"https:\/\/climatescience.press\/?p=193917","url_meta":{"origin":245633,"position":5},"title":"A Cannibal CME is Approaching Earth","author":"uwe.roland.gross","date":"30\/03\/2022","format":false,"excerpt":"March 29, 2022:\u00a0On March 28th, sunspot AR2975 unleashed a frenzy of solar flares\u2013more than 17 in all. There were 11\u00a0C-class\u00a0flares and 6\u00a0M-flares. At least two full-halo CMEs emerged from the chaos: Above:\u00a0A\u00a0SOHO\u00a0coronagraph\u00a0movie of multiple CMEs on March 28, 2022. The first CME in this movie was produced by an M4-class\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/03\/0Screenshot-2022-03-30-192754.png?fit=1047%2C587&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/03\/0Screenshot-2022-03-30-192754.png?fit=1047%2C587&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/03\/0Screenshot-2022-03-30-192754.png?fit=1047%2C587&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/03\/0Screenshot-2022-03-30-192754.png?fit=1047%2C587&ssl=1&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/245633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/users\/121246920"}],"replies":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=245633"}],"version-history":[{"count":3,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/245633\/revisions"}],"predecessor-version":[{"id":245639,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/245633\/revisions\/245639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/media\/245638"}],"wp:attachment":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=245633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=245633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=245633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}