{"id":46092,"date":"2022-05-04T13:55:00","date_gmt":"2022-05-04T13:55:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=46092"},"modified":"2022-05-04T16:10:17","modified_gmt":"2022-05-04T16:10:17","slug":"comparisons-of-lis-and-glm-lightning-observations","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/46092","title":{"rendered":"Comparisons of LIS and GLM Lightning observations"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/05\/LIS_GLM4-20220504_131845_to_132045anim.gif\" alt=\"\" class=\"wp-image-46093\" width=\"840\" height=\"552\" \/><figcaption>GOES-16 5-minute Flash Extent Density (updated every minute) and ISS LIS Flash Events, 1318-1320 UTC on 4 May 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>The Geostationary Lightning Mapper (GLM) on GOES-16 and the Lightning Imaging Sensor (<a href=\"https:\/\/earthdata.nasa.gov\/earth-observation-data\/near-real-time\/download-nrt-data\/lis-nrt\">LIS<\/a>, additional information <a href=\"https:\/\/eoportal.org\/web\/eoportal\/satellite-missions\/content\/-\/article\/iss-utilization-lis\">here<\/a>) on the International Space Station (ISS) both observe lightning.  The GLM has nadir resolution of approximately 8 km, and is in geostationary orbit, about 36000 km above the Earth&#8217;s surface.  In contrast, the LIS has a resolution of approximately 4 km, and it&#8217;s on the ISS, only 400 km above the Earth&#8217;s surface.  Both sensors detect the optical signal of the lightning.  The animation above shows 2 minutes of LIS Flash Events plotted (in yellow) on top of 5-minute aggregates of GLM Flash Extent Density (updated at 1-minute time-steps).  The animation below shows the same LIS observations, but plotted in black, on top of GOES-16 ABI Band 13 imagery.  Many of the LIS flash events are colocated with cold cloud top as defined by the GOES-16 Band 13 (10.3 \u00b5m) brightness temperatures &#8212; meaning that the optical signal is strongest there.  That&#8217;s not always the case though, as shown in <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/05\/LIS_G16ABIBand13-20220504_131948.png\">this image with LIS data from 13:19:48<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1180\" height=\"776\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/05\/LIS_G16ABIBand13-20220504_131845_to_132045anim.gif\" alt=\"\" class=\"wp-image-46095\" \/><figcaption>GOES-16 Band 13 Infrared (10.3 \u00b5m) imagery and LIS Flash Events, 1318-1320 UTC on 4 May 2022 (Click to enlarge) <\/figcaption><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Geostationary Lightning Mapper (GLM) on GOES-16 and the Lightning Imaging Sensor (LIS, additional information here) on the International Space Station (ISS) both observe lightning. The GLM has nadir resolution of approximately 8 km, and is in geostationary orbit, about 36000 km above the Earth&#8217;s surface. In contrast, the LIS has a resolution of approximately [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":46096,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76,74,30,47],"tags":[],"class_list":["post-46092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glm","category-goes-16","category-lightning","category-other-satellites"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46092","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\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=46092"}],"version-history":[{"count":3,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46092\/revisions"}],"predecessor-version":[{"id":46098,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46092\/revisions\/46098"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/46096"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=46092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=46092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=46092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}