{"id":42429,"date":"2021-09-14T18:12:00","date_gmt":"2021-09-14T18:12:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=42429"},"modified":"2021-09-15T05:19:44","modified_gmt":"2021-09-15T05:19:44","slug":"acspo-ssts-off-the-oregon-coast","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/42429","title":{"rendered":"ACSPO SSTs off the Oregon Coast"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/VIIRSACSPOSSTs-20210912_to_0914step.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"1353\" height=\"1022\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/VIIRSACSPOSSTs-20210912_to_0914step.gif\" alt=\"\" class=\"wp-image-42430\" \/><\/a><figcaption>ACSPO SST values derived from VIIRS data, 12-14 September 2021, at times indicated (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>Clear skies to the west of Oregon and California in the past two days have allowed VIIRS data (VIIRS &#8212; the <a href=\"https:\/\/ncc.nesdis.noaa.gov\/NOAA-20\/NOAA20VIIRS.php\">Visible-Infrared Imaging Radiometer Suite<\/a> flying on both Suomi-NPP and NOAA-20) to produce compelling imagery of the Sea Surface using Advanced Clear Sky Processing for Ocean (ACSPO) algorithms.  VIIRS imagery is downlinked at the Direct Broadcast site at the UW-Madison; data are processed using <a href=\"https:\/\/cimss.ssec.wisc.edu\/cspp\/\">CSPP<\/a>.  Purple values are just a bit cooler than 50\u00ba F;  Yellow values are in the mid-60s \u00baF.<\/p>\n\n\n\n<p>ACSPO estimates of SSTs are important over the Pacific Northwest because the Level 2 SST GOES-16 product is not computed near the GOES-16 limb.  Level 2 Clear Sky mask is not computed out to the limb, as shown below, and GOES-16 SSTs (Full-Disk only products) are not computed out to the edge of the Clear Sky mask!  So, if you want satellite-derived SSTs (GOES-17 Level 2 products are not yet widely available), Polar-Orbiting data are the way to go.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1353\" height=\"1022\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022.png\" alt=\"\" class=\"wp-image-42432\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022.png 1353w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022-300x227.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022-1024x773.png 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/09\/G16ClearSkyMaskOceanSST-20210914_160022-768x580.png 768w\" sizes=\"auto, (max-width: 1353px) 100vw, 1353px\" \/><\/a><figcaption>GOES-16 Level Clear Sky Mask (white=clouds; black=no clouds) and derived SSTs, 1600 UTC on 14 September 2021 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p>AWIPS-ready ACSPO SST files are available from via an LDM feed from CIMSS.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Clear skies to the west of Oregon and California in the past two days have allowed VIIRS data (VIIRS &#8212; the Visible-Infrared Imaging Radiometer Suite flying on both Suomi-NPP and NOAA-20) to produce compelling imagery of the Sea Surface using Advanced Clear Sky Processing for Ocean (ACSPO) algorithms. VIIRS imagery is downlinked at the Direct [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":42430,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,8,48],"tags":[],"class_list":["post-42429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-marine-weather","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/42429","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=42429"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/42429\/revisions"}],"predecessor-version":[{"id":42441,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/42429\/revisions\/42441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/42430"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=42429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=42429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=42429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}