{"id":14161,"date":"2013-10-19T23:59:18","date_gmt":"2013-10-19T23:59:18","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=14161"},"modified":"2013-10-20T19:08:25","modified_gmt":"2013-10-20T19:08:25","slug":"super-typhoon-francisco","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/14161","title":{"rendered":"Super Typhoon Francisco"},"content":{"rendered":"<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131017-19_mtsat_ir_francisco_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"MTSAT-2 10.8 \u00c2\u00b5m IR channel images (click to play animation)\" alt=\"MTSAT-2 10.8 \u00c2\u00b5m IR channel images (click to play animation)\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131017-19_MTSAT_IR_FRANCISCO_62.GIF\" width=\"480\" height=\"360\" \/><\/a><p class=\"wp-caption-text\">MTSAT-2 10.8 \u00c2\u00b5m IR channel images (click to play animation)<\/p><\/div>\n<p>Super Typhoon Francisco became the third Category 5 tropical cyclone of 2013 on 19 October 2013, as it intesified over the West Pacific Ocean northwest of Guam. 4-km resolution MTSAT-2 10.8 \u00c2\u00b5m IR channel images <em><strong>(above; click image to play animation)<\/strong><\/em> showed the evolution and track of the eye of Francisco during the 17-19 October period <em>(the island of Guam is in the lower right corner of the images)<\/em>. Note the trochoidal motion or &#8220;wobble&#8221; that is exhibited by the eye of the tropical cyclone as it tracked northwestward &#8211; this is caused by changes within the inner core structure of the storm, such as convective asymmetries.<\/p>\n<p>1-km resolution MTSAT-2 0.73 \u00c2\u00b5m visible channel images <em><strong>(below; click image to play animation)<\/strong><\/em> revealed better details of the eye and eyewall structure during the daylight portion of 18-19 October. The lowering October sun angle tended to more brightly illumimate the sloped surface of the northern quadrant of the eye.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131018-19_mtsat_vis_francisco_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"  \" title=\"MTSAT-2 0.73 \u00c2\u00b5m visible channel images (click to play animation)\" alt=\"MTSAT-2 0.73 \u00c2\u00b5m visible channel images (click to play animation)\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131018-19_MTSAT_VIS_FRANCISCO_10.GIF\" width=\"480\" height=\"360\" \/><\/a><p class=\"wp-caption-text\">MTSAT-2 0.73 \u00c2\u00b5m visible channel images (click to play animation)<\/p><\/div>\n<p>A McIDAS-V comparison of 375-meter resolution Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band and 11.45 \u00c2\u00b5m thermal IR channel images at 15:48 UTC on 18 October <em><strong>(below; images courtesy of William Straka, CIMSS)<\/strong><\/em> showed a good example of the so-called &#8220;stadium effect&#8221;: the eye diameter appeared larger on the VIIRS IR image than on the corresponding &#8220;visible image at night&#8221; from the VIIRS Day\/Night Band, because the clouds along the edges of the eye were steeply sloping outward with height.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131018_1548z_suomi_npp_viirs_dnb_ir_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and 11.45 \u00c2\u00b5m IR channel images\" alt=\"Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and 11.45 \u00c2\u00b5m IR channel images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/10\/131018_1548z_suomi_npp_viirs_dnb_ir_anim.gif\" width=\"480\" height=\"332\" \/><\/a><p class=\"wp-caption-text\">Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and 11.45 \u00c2\u00b5m IR channel images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Super Typhoon Francisco became the third Category 5 tropical cyclone of 2013 on 19 October 2013, as it intesified over the West Pacific Ocean northwest of Guam. 4-km resolution MTSAT-2 10.8 \u00c2\u00b5m IR channel images (above; click image to play animation) showed the evolution and track of the eye of Francisco during the 17-19 October [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":14162,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[51,20,49,2,48],"tags":[],"class_list":["post-14161","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mcidas-v","category-mtsat","category-suomi_npp","category-tropical-cyclones","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=14161"}],"version-history":[{"count":14,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14161\/revisions"}],"predecessor-version":[{"id":14176,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14161\/revisions\/14176"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/14162"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=14161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=14161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=14161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}