{"id":6893,"date":"2010-09-27T23:11:50","date_gmt":"2010-09-27T23:11:50","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=6893"},"modified":"2010-09-28T18:51:06","modified_gmt":"2010-09-28T18:51:06","slug":"fog-and-stratus-over-the-upper-midwest-region","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/6893","title":{"rendered":"Fog and stratus over the Upper Midwest region"},"content":{"rendered":"
\"GOES-13<\/a>

GOES-13 night-time fog\/stratus product + daytime visible imagery<\/p><\/div>\n

AWIPS images of the night-time 4-km resolution GOES-13 fog\/stratus product and the daytime 1-km resolution GOES-13 visible images (above)<\/strong><\/em> showed two features of interest on 27 September 2010<\/strong><\/a>: (1)<\/em> narrow fingers of river valley fog forming during the overnight hours — and then burning off during the early morning hours — over parts of the Mississippi River valley and the Wisconsin River valley, and (2)<\/em> a larger patch of stratus cloud that lingered over southern Lake Michigan and the Chicago region.<\/p>\n

Note the improvement in the detection of the actual structure of the river valley fog features with the change from the 4-km resolution fog\/stratus product images to the 1-km resolution visible images — the importance of spatial resolution for detecting river valley fog is also obvious on a comparison of the 1-km resolution MODIS fog\/stratus product image with the corresponding GOES-13 fog\/stratus product image (below)<\/strong><\/em>.<\/p>\n

\"1-km<\/a>

1-km resolution MODIS vs 4-km resolution GOES-13 fog\/stratus product images<\/p><\/div>\n

==========================================<\/strong><\/p>\n

\"POES<\/a>

POES AVHRR Cloud Top Height product<\/p><\/div>\n

Other satellite products that could be utilized to further characterize the large patch of stratus cloud over southern Lake Michigan and the Chicago region are the 1-km resolution POES AVHRR Cloud Top Height (CTH) product (above),<\/strong><\/em> which showed CTH values of around 3 km, and the 1-km resolution POES AVHRR Cloud Top Temperature (CTT) product (below)<\/strong><\/em>, which depicted CTT values of 0\u00c2\u00ba C to -2\u00c2\u00ba C across much of the feature.<\/p>\n

\"POES<\/a>

POES AVHRR Cloud Top Temperature product<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

AWIPS images of the night-time 4-km resolution GOES-13 fog\/stratus product and the daytime 1-km resolution GOES-13 visible images (above) showed two features of interest on 27 September 2010: (1) narrow fingers of river valley fog forming during the overnight hours — and then burning off during the early morning hours — over parts of the […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,13,11,12,26],"tags":[],"class_list":["post-6893","post","type-post","status-publish","format-standard","hentry","category-avhrr","category-fog-detection","category-goes-13","category-modis","category-poes"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6893","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=6893"}],"version-history":[{"count":4,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6893\/revisions"}],"predecessor-version":[{"id":6898,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6893\/revisions\/6898"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=6893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=6893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=6893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}