{"id":71148,"date":"2026-07-08T23:59:00","date_gmt":"2026-07-08T23:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=71148"},"modified":"2026-07-10T20:29:55","modified_gmt":"2026-07-10T20:29:55","slug":"solar-reflection-off-water-and-ice-in-the-chukchi-sea-and-beaufort-sea-north-of-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/71148","title":{"rendered":"Solar reflection off water and ice in the Chukchi Sea and Beaufort Sea north of Alaska"},"content":{"rendered":"\n<figure class=\"wp-block-video aligncenter\"><video autoplay controls loop muted src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/07\/260708_goes18_infraredWindow_shortwaveInfrared_visible_Arctic_Ocean_solar_reflectance.mp4\" playsinline><\/video><figcaption class=\"wp-element-caption\"><em>10-minute GOES-18 Infrared Window images (top), Shortwave Infrared images (middle) and Visible images (bottom), from 0820-0950 UTC on 08 July<\/em><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">10-minute Full Disk scan GOES-18 <em>(GOES-West)<\/em> images <strong><em>(above<\/em>)<\/strong> showed notable signatures of the strong reflection of solar radiation off either open water or mixed water\/ice across the Chukchi Sea and Beaufort Sea north of Alaska on 08 July 2026. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cursor samples near the center of strong reflection at 0900 UTC and 0910 UTC <strong><em>(below<\/em>)<\/strong> revealed shortwave infrared brightness temperatures of 137.88 C &#8212; which is the saturation temperature of GOES-18 ABI Band 07 detectors. Even the Infrared Window brightness temperatures were as warm as 68.18 C.<\/p>\n\n\n\n<figure class=\"wp-block-video aligncenter\"><video autoplay controls loop muted src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/07\/260708_goes18_infraredWindow_shortwaveInfrared_visible_Beaufort_Sea_solar_reflectance_cursor_samples_anim.mp4\" playsinline><\/video><figcaption class=\"wp-element-caption\"><em>GOES-18 Infrared Window mages (top), Shortwave Infrared images (middle) and Visible images (bottom) at 0900 UTC and 0910 UTC on 08 July, with cursor samples near the center of the solar reflectance signatures<\/em><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Looking at a 16-panel display of all GOES-18 ABI spectral bands <strong><em>(below<\/em>)<\/strong>, it could be seen that bright reflectance signatures were evident in all Visible and Near-Infrared bands (01-06, including the Cirrus band 04), and warm thermal signatures were apparent in all Infrared bands 07-16 (although the signatures were rather subtle in the Water Vapor bands 08-10).<\/p>\n\n\n\n<figure class=\"wp-block-video aligncenter\"><video autoplay controls loop muted src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/07\/260708_goes18_16panel_Beaufort_Sea_solar_reflectance.mp4\" playsinline><\/video><figcaption class=\"wp-element-caption\"><em>16-panel display of all ABI spectral bands on GOES-18, from 0820-0950 UTC on 08 July<\/em><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A sequence of Suomi-NPP VIIRS Visible images <strong>(<em>below<\/em>)<\/strong> displayed the widespread ice that remained throughout much of Chukchi Sea and Beaufort Sea on 08 July.<\/p>\n\n\n\n<figure class=\"wp-block-video aligncenter\"><video autoplay controls loop muted src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2026\/07\/260708_suomiNPP_viirs_visible_Arctic_Ocean_anim.mp4\" playsinline><\/video><figcaption class=\"wp-element-caption\"><em>Suomi-NPP VIIRS Visible images, from 1348-2201 UTC on 08 July<\/em><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>10-minute Full Disk scan GOES-18 (GOES-West) images (above) showed notable signatures of the strong reflection of solar radiation off either open water or mixed water\/ice across the Chukchi Sea and Beaufort Sea north of Alaska on 08 July 2026. Cursor samples near the center of strong reflection at 0900 UTC and 0910 UTC (below) revealed [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":71152,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37,108,10,114,49,48],"tags":[],"class_list":["post-71148","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arctic","category-cryosphere","category-general-interpretation","category-goes-18","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/71148","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=71148"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/71148\/revisions"}],"predecessor-version":[{"id":71194,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/71148\/revisions\/71194"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/71152"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=71148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=71148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=71148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}