{"id":615,"date":"2008-03-03T23:59:57","date_gmt":"2008-03-03T23:59:57","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/615"},"modified":"2008-03-08T01:51:16","modified_gmt":"2008-03-08T01:51:16","slug":"the-gulf-stream-modis-vs-model-derived-sea-surface-temperature","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/615","title":{"rendered":"The Gulf Stream: MODIS vs. RTG_SST_HR model Sea Surface Temperature"},"content":{"rendered":"<p><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/03\/080303_modis_sst_anim.gif\" title=\"MODIS + RGT_SST analysis (Animated GIF)\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/03\/080303_modis_sst_anim.gif\" title=\"MODIS + RGT_SST analysis (Animated GIF)\" alt=\"MODIS + RGT_SST analysis (Animated GIF)\" align=\"middle\" height=\"451\" width=\"480\" \/><\/a><\/p>\n<p>Minimal cloud cover <strong>(<a href=\"http:\/\/www.ssec.wisc.edu\/modis-today\/index.php?satellite=a1&amp;product=true_color&amp;date=2008_03_03_063&amp;overlay_sector=false&amp;overlay_state=true&amp;overlay_coastline=true\" title=\"MODIS true color image\" target=\"_blank\">MODIS true color image<\/a>)<\/strong> off the US East Coast and over the western North Atlantic Ocean on <a href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20080303.html\" title=\"03 March 2008 daily weather map\" target=\"_blank\"><strong>03 March 2008<\/strong><\/a> allowed a nice view of the ribbon of warm water temperatures associated with the <a href=\"http:\/\/en.wikipedia.org\/wiki\/Gulf_Stream\" title=\"Gulf Stream (Wikipedia)\" target=\"_blank\"><strong>Gulf Stream<\/strong><\/a>, as shown on an AWIPS image of the MODIS Sea Surface Temperature (SST) product at 17:56 UTC <em><strong>(above)<\/strong><\/em>. MODIS SST values along the Gulf Stream were generally in the <strong>72-79\u00c2\u00ba F (22-26\u00c2\u00ba C)<\/strong> range <em>(yellow to orange colors);<\/em> clouds over water are depicted with as black on the MODIS SST product. A comparison with the  SST analysis field from the High Resolution Real Time Global <strong>(<a href=\"http:\/\/polar.ncep.noaa.gov\/sst\/ophi\/Welcome.html\" title=\"RTG_SST_HR analysis\" target=\"_blank\">RTG_SST_HR<\/a>)<\/strong> model 18 hours earlier <em>(at 00:00 UTC)<\/em> demonstrated the advantage of the 1-km resolution MODIS data for resolving the small-scale detail in the structure of warm and cold water eddies that existed on either side of the Gulf Stream axis.<\/p>\n<p>In particular, note Buoy 41002, located south of Cape Hatteras, North Carolina (or about 250 nautical miles east of Charleston, South Carolina): the <a href=\"http:\/\/www.ndbc.noaa.gov\/station_page.php?station=41002\" title=\"National Data Buoy Center\" target=\"_blank\"><strong>National Data Buoy Center<\/strong><\/a> water temperature data for 41002  <em><strong>(below)<\/strong><\/em> revealed  that the SST had increased 7-8\u00c2\u00ba F since 29 February 2008 as an eddy of warm water drifted across the buoy location, and the water temperature was in the <strong>74-75\u00c2\u00ba F<\/strong> range during the daytime hours on 03 March. The 17:56 UTC MODIS SST value of <strong>74.2\u00c2\u00ba F<\/strong> in the vicinity of Buoy 41002 was in much better agreement with the NDBC water temperature data <em>(compared to the SST value of less than <strong>69\u00c2\u00ba F<\/strong> at Buoy 41002 indicated by the RTG_SST_HR analysis at 00:00 UTC).<\/em><\/p>\n<p><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/03\/080303_41002.jpg\" title=\"Buoy 41002 SST data\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/03\/080303_41002.jpg\" title=\"Buoy 41002 SST data\" alt=\"Buoy 41002 SST data\" align=\"middle\" height=\"418\" width=\"481\" \/><\/a><\/p>\n<p>At its greatest, the Gulf Stream is about 100 miles wide and several hundred feet deep &#8212; much larger than any river on Earth. It also moves much <em>faster<\/em> than any river, moving as much as about 140 miles in a single day; in terms of volume per second, the Gulf Stream moves about 1000 times faster than the Mississippi River.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Minimal cloud cover (MODIS true color image) off the US East Coast and over the western North Atlantic Ocean on 03 March 2008 allowed a nice view of the ribbon of warm water temperatures associated with the Gulf Stream, as shown on an AWIPS image of the MODIS Sea Surface Temperature (SST) product at 17:56 [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8,12],"tags":[],"class_list":["post-615","post","type-post","status-publish","format-standard","hentry","category-marine-weather","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/615","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=615"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/615\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}