{"id":35400,"date":"2020-01-10T23:59:43","date_gmt":"2020-01-10T23:59:43","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=35400"},"modified":"2020-02-18T19:11:11","modified_gmt":"2020-02-18T19:11:11","slug":"exploring-the-effect-of-parallax","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/35400","title":{"rendered":"Exploring the effect of parallax"},"content":{"rendered":"<p><div style=\"width: 652px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_goes16_visible_spcStormReports_parallax_KS_MO_OK_AR_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/G16_VIS_OK_MO_SVR_PLAX_10JAN2020_B2_2020010_205125_GOES-16_0001PANEL_FRAME00133.GIF\" alt=\"GOES-16 &quot;Red&quot; Visible (0.64 \u00b5m) images, including plot of SPC Storm Reports (with and without parallax correction) [click to play animation]\" width=\"642\" height=\"481\" \/><\/a><p class=\"wp-caption-text\">GOES-16 &#8220;Red&#8221; Visible <em>(0.64 \u00b5m)<\/em> images, including plot of SPC Storm Reports (with and without parallax correction) [click to play animation]<\/p><\/div>Overlapping 1-minute GOES-16 <em>(GOES-East)<\/em> <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/23225\"><strong>Mesoscale Domain Sectors<\/strong><\/a> provided images at 30-second intervals over the Kansas\/Missouri\/Oklahoma\/Arkansas area on <a href=\"https:\/\/www.wpc.ncep.noaa.gov\/dailywxmap\/index_20200110.html\"><strong>10 January 2019<\/strong><\/a> &#8212; and &#8220;Red&#8221; Visible (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band02.pdf\"><strong>0.64 \u00b5m)<\/strong><\/a> images <em><strong>(above)<\/strong><\/em> included plots of <a href=\"https:\/\/www.spc.noaa.gov\/climo\/reports\/200110_rpts.html\"><strong>SPC Storm Reports<\/strong><\/a> (with and without <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/217\"><strong>parallax<\/strong><\/a> correction) during the time period which produced the first 2 tornadoes (1 in southwestern Missouri, and 1 in northeastern Oklahoma) of a large-scale severe weather outbreak that continued into the subsequent nighttime hours and the following day.<\/p>\n<p>The GOES-16 Visible images for the times corresponding to the 2 tornado reports <em><strong>(below)<\/strong><\/em> include &#8220;parallax-corrected&#8221; &#8212; shifted upward to match a 13 km cloud top, the Maximum Parcel Level calculated from the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_18utc_ksgf_raob.png\"><strong>18 UTC Springfield, Missouri sounding<\/strong><\/a> &#8212; and actual surface locations for each report. For the Oklahoma tornado report, the parallax-corrected location more closely matches the location of overshooting tops; for the Missouri tornado report, the parallax-corrected location more closely matches the location where a cluster of overshooting tops had passed several minutes earlier.<\/p>\n<p><div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_2030utc_goes16_visible_spcStormReport_parallax_anim.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_2030utc_goes16_visible_spcStormReport_parallax_anim.gif\" alt=\"GOES-16 &quot;Red&quot; Visible (0.64 \u00b5m) image at 2030 UTC, including plot of SPC Storm Reports (with and without parallax correction) [click to enlarge]\" width=\"639\" height=\"479\" \/><\/a><p class=\"wp-caption-text\">GOES-16 &#8220;Red&#8221; Visible <em>(0.64 \u00b5m)<\/em> image at 2030 UTC, including a Tornado report in Missouri (with and without parallax correction) [click to enlarge]<\/p><\/div><div style=\"width: 651px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_2051utc_goes16_visible_spcStormReport_parallax_anim.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_2051utc_goes16_visible_spcStormReport_parallax_anim.gif\" alt=\"GOES-16 &quot;Red&quot; Visible (0.64 \u00b5m) image at 2051 UTC, including plot of Tornado report (with and without parallax correction) [click to enlarge]\" width=\"641\" height=\"481\" \/><\/a><p class=\"wp-caption-text\">GOES-16 &#8220;Red&#8221; Visible<em> (0.64 \u00b5m)<\/em> image at 2051 UTC, including a Tornado report in Oklahoma (with and without parallax correction) [click to enlarge]<\/p><\/div>GOES-16 parallax direction vectors and magnitude (km) for a cloud top feature at 50,000 feet (or 15.2 km) are shown below for select locations across the GOES-16 CONUS domain &#8212; a webapp that displays a current infrared image with user-selectable cloud heights is available <a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/webapps\/parallax\/overview_updated.html\"><strong>here<\/strong><\/a>. Circled is a vector and magnitude in an area close to that shown in the images above.\u00a0 Note: the length of the vectors does not correspond to the actual distance of parallax correction.<\/p>\n<p><div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_KS_MO_parallax.png\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/200110_KS_MO_parallax.png\" alt=\"GOES-16 parallax direction vectors and magnitude (km) for a cloud top feature at 15 km [click to enlarge]\" width=\"639\" height=\"377\" \/><\/a><p class=\"wp-caption-text\">GOES-16 parallax direction vectors and magnitude (km) for a cloud top feature at 50,000 feet (15.2 km) [click to enlarge]<\/p><\/div>Similar webapps are available for the <a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/webapps\/parallax\/goes16_fd.html\"><strong>GOES-16 Full Disk<\/strong><\/a>, <a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/webapps\/parallax\/goes17_conus.html\"><strong>GOES-17 CONUS<\/strong><\/a> and <a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/webapps\/parallax\/goes17_fd.html\"><strong>GOES-17 Full Disk<\/strong><\/a> sectors.<\/p>\n<div style=\"width: 651px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/goes17_parallax_fulldisk.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/01\/goes17_parallax_fulldisk.png\" alt=\"GOES-17 parallax correction direction vectors and magnitude (km) for a cloud top feature at 50,000 feet (15.2 km) [click to enlarge]\" width=\"641\" height=\"704\" \/><\/a><p class=\"wp-caption-text\">GOES-17 parallax direction vectors and magnitude (km) for a cloud top feature at 50,000 feet (15.2 km) [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Overlapping 1-minute GOES-16 (GOES-East) Mesoscale Domain Sectors provided images at 30-second intervals over the Kansas\/Missouri\/Oklahoma\/Arkansas area on 10 January 2019 &#8212; and &#8220;Red&#8221; Visible (0.64 \u00b5m) images (above) included plots of SPC Storm Reports (with and without parallax correction) during the time period which produced the first 2 tornadoes (1 in southwestern Missouri, and 1 [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":35402,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,3],"tags":[],"class_list":["post-35400","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35400","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=35400"}],"version-history":[{"count":5,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35400\/revisions"}],"predecessor-version":[{"id":35735,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35400\/revisions\/35735"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/35402"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=35400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=35400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=35400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}