{"id":33542,"date":"2019-06-16T23:59:22","date_gmt":"2019-06-16T23:59:22","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=33542"},"modified":"2019-06-17T19:49:57","modified_gmt":"2019-06-17T19:49:57","slug":"wildfire-in-the-seward-peninsula-of-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/33542","title":{"rendered":"Wildfire in the Seward Peninsula of Alaska"},"content":{"rendered":"

\"GOES-17<\/a>

GOES-17 “Red” Visible (0.64 \u00b5m)<\/em> and Shortwave Infrared (3.9 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-17 (GOES-West)<\/em> “Red” Visible (0.64 \u00b5m<\/strong><\/a>) and Shortwave Infrared (3.9 \u00b5m)<\/strong><\/a> images (above)<\/strong><\/em> showed a smoke plume and pyrocumulus clouds in addition to the thermal anomaly (or “hot spot”) associated with the lightning-initiated North River wildfire burning in the far eastern Seward Peninsula of Alaska on 16 June 2019. It is interesting to note that shortly after the wildfire exhibited a peak Shortwave Infrared brightness temperature of 94.5\u00baC at 2124 UTC<\/strong><\/a>, a distinct pyrocumulus cloud “jump” was seen in the Visible imagery (which appeared to peak in vertical extent around 2131 UTC<\/strong><\/a>, as seen in this short animation<\/strong><\/a>).<\/p>\n

A sequence of 3 Suomi NPP VIIRS Shortwave Infrared (3.74 \u00b5m) and Visible (0.64 \u00b5m) images (below)<\/strong><\/em> also showed the fire thermal anomaly (black to red pixels)<\/em> and the smoke plume.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS Shortwave Infrared (3.74 \u00b5m) and Visible (0.64 \u00b5m) images, with surface observations plotted in yellow [click to enlarge]<\/p><\/div>In fact, the south-southwestward transport of smoke restricted the surface visibility to 5 miles at Unalakeet and 4 miles at St. Michael (below),<\/em><\/strong> located about 100 to 150 miles from the fire respectively.<\/p>\n

\"Time<\/a>

Time series plot of surface observation data from Unalakeet [click to enlarge]<\/p><\/div>

\"Time<\/a>

Time series plot of surface observation data from St. Michael [click to enlarge]<\/p><\/div>A NOAA-20 VIIRS True Color Red-Green-Blue (RGB) image viewed using RealEarth<\/strong><\/a> (below)<\/strong> <\/em>showed significant residual smoke aloft (from the previous day of that wildfire’s growth) arcing westward then southward over the Bering Sea; however, since smoke is effectively transparent at the 11.45 \u00b5m Infrared Window wavelength, there was no smoke signature seen in that particular image.<\/p>\n

\"NOAA-20<\/a>

NOAA-20 VIIRS True Color RGB and Infrared Window (11.45 \u00b5m)<\/em> images [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 \u00b5m) and Shortwave Infrared (3.9 \u00b5m) images (above) showed a smoke plume and pyrocumulus clouds in addition to the thermal anomaly (or “hot spot”) associated with the lightning-initiated North River wildfire burning in the far eastern Seward Peninsula of Alaska on 16 June 2019. It is […]<\/p>\n","protected":false},"author":18,"featured_media":33544,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80,78,53,45,49,48],"tags":[],"class_list":["post-33542","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-17","category-noaa-20","category-real-earth","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/33542","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=33542"}],"version-history":[{"count":5,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/33542\/revisions"}],"predecessor-version":[{"id":33548,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/33542\/revisions\/33548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/33544"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=33542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=33542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=33542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}