{"id":26165,"date":"2017-11-21T23:59:04","date_gmt":"2017-11-21T23:59:04","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=26165"},"modified":"2018-09-03T18:36:12","modified_gmt":"2018-09-03T18:36:12","slug":"interesting-contrail-in-north-dakota","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/26165","title":{"rendered":"Interesting contrail in North Dakota"},"content":{"rendered":"<p><center><\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p dir=\"ltr\" lang=\"en\">Satellites have the capability of allowing us to see things that may otherwise have gone unnoticed. The numerous bands available on <a href=\"https:\/\/twitter.com\/hashtag\/GOES16?src=hash&amp;ref_src=twsrc%5Etfw\">#GOES16<\/a> shows an unusually shaped contrail over Barnes County ND, most noticeable in the water vapor bands. <a href=\"https:\/\/twitter.com\/hashtag\/ndwx?src=hash&amp;ref_src=twsrc%5Etfw\">#ndwx<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/mnwx?src=hash&amp;ref_src=twsrc%5Etfw\">#mnwx<\/a> <a href=\"https:\/\/t.co\/OHqCF0bO6s\">pic.twitter.com\/OHqCF0bO6s<\/a><\/p>\n<p>\u2014 NWS Grand Forks (@NWSGrandForks) <a href=\"https:\/\/twitter.com\/NWSGrandForks\/status\/933097749737701377?ref_src=twsrc%5Etfw\">November 21, 2017<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/center><\/p>\n<p><em>* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing *<\/em><\/p>\n<p>As mentioned in a Tweet from NWS Grand Forks<em><strong> (above),<\/strong><\/em> an interesting <a href=\"https:\/\/en.wikipedia.org\/wiki\/Contrail\"><strong>contrail<\/strong><\/a> was seen over eastern North Dakota on <a href=\"http:\/\/www.wpc.ncep.noaa.gov\/dailywxmap\/index_20171121.html\"><strong>21 November 2017<\/strong><\/a>. They noted that the contrail was most easily seen using imagery from the water vapor bands.<\/p>\n<p>A comparison of GOES-16 <a href=\"http:\/\/www.goes-r.gov\/spacesegment\/abi.html\"><strong>ABI<\/strong><\/a> Lower-level (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band10.pdf\"><strong>7.3 \u00b5m<\/strong><\/a>), Mid-level (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band09.pdf\"><strong>6.9 \u00b5m<\/strong><\/a>) and Upper-level (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band08.pdf\"><strong>6.2 \u00b5m<\/strong><\/a>) Water Vapor images<em><strong> (below)<\/strong> <\/em>showed the formation and motion of the contrail feature (which was likely caused by military aircraft, based in Grand Forks and\/or Minot, performing training exercises).<\/p>\n<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/171121_goes16_WaterVapor_ND_contrail_amim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/G16_WATER_VAPOR_ND_CONTRAIL_21NOV2017_EXP_960x427_B1098_2017325_214712_0003PANELS_00001.GIF\" alt=\"GOES-16 Lower-level (10.3 \u00b5m, left), Mid-level (6.9 \u00b5m, center) and Upper-level (6.2 \u00b5m, right) Water Vapor images, with surface station identifiers plotted in cyan [click to play animation]\" width=\"640\" height=\"479\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Lower-level (10.3 \u00b5m, left), Mid-level (6.9 \u00b5m, center) and Upper-level (6.2 \u00b5m, right) Water Vapor images [click to play animation]<\/p><\/div>A comparison of three of the GOES-16 Near-Infrared bands<em><strong> (below)<\/strong><\/em> showed that the high-altitude ice crystal contrail feature was also very apparent in &#8220;Cirrus&#8221; (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band04.pdf\"><strong>1.37 \u00b5m<\/strong><\/a>) images; the contrails themselves were very subtle in the &#8220;Vegetation&#8221; (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band03.pdf\"><strong>0.86 \u00b5m<\/strong><\/a>) and &#8220;Snow\/Ice&#8221; (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band05.pdf\"><strong>1.61 \u00b5m<\/strong><\/a>) images, but their darker shadows which were cast upon the surface<em> (to the east-northeast)<\/em> were more obvious &#8212; for example, on the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/960x427_AGOES16_B345_G16_VEGETTION_CIRRUS_SNOWICE_ND_CONTRAIL_21NOV2017_2017325_213212_0003PANELS.GIF\"><strong>2132 UTC images<\/strong><\/a>.<\/p>\n<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/171121_goes16_Vegetation_Cirrus_SnowIce_ND_contrail_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/960x427_AGOES16_B345_G16_VEGETTION_CIRRUS_SNOWICE_ND_CONTRAIL_21NOV2017_2017325_214212_0003PANELS.GIF\" alt=\"GOES-16 Vegetation (0.86 \u00b5m, left), Cirrus (1.37 \u00b5m, center) and Snow\/Ice (1.61 \u00b5m, right) images [click to play animation]\" width=\"640\" height=\"479\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Vegetation (0.86 \u00b5m, left), Cirrus (1.37 \u00b5m, center) and Snow\/Ice (1.61 \u00b5m, right) images [click to play animation]<\/p><\/div>A similar contrail feature was noted over North Dakota in <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/7648\"><strong>March 2011<\/strong><\/a>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Satellites have the capability of allowing us to see things that may otherwise have gone unnoticed. The numerous bands available on #GOES16 shows an unusually shaped contrail over Barnes County ND, most noticeable in the water vapor bands. #ndwx #mnwx pic.twitter.com\/OHqCF0bO6s \u2014 NWS Grand Forks (@NWSGrandForks) November 21, 2017 * GOES-16 data posted on this [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":26171,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21,74],"tags":[],"class_list":["post-26165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aviation","category-goes-16"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26165","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=26165"}],"version-history":[{"count":11,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26165\/revisions"}],"predecessor-version":[{"id":29676,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26165\/revisions\/29676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/26171"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=26165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=26165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=26165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}