{"id":44892,"date":"2022-03-01T20:04:16","date_gmt":"2022-03-01T20:04:16","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=44892"},"modified":"2022-03-01T20:04:16","modified_gmt":"2022-03-01T20:04:16","slug":"gridded-nucaps-over-the-ocean-and-ifr-probability","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/44892","title":{"rendered":"Gridded NUCAPS over the ocean and IFR Probability"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/CONUSIFRProbNUCAPSTd1000-20220228_2100toggle.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"749\" height=\"450\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/CONUSIFRProbNUCAPSTd1000-20220228_2100toggle.gif\" alt=\"\" class=\"wp-image-44893\" \/><\/a><figcaption>Gridded NUCAPS estimates of low-level (1000 mb) dewpoint, and (CONUS) GOES-16 IFR Probability, 2100 UC on 28 February 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>The image above (from 2100 UTC on 28 February 2022) and below (from 0930 UTC on 1 March 2022) toggle between low-level estimates of 1000-mb dewpoint and GOES-16 IFR Probability fields.  Is there a general relationship between the two?  At first blush, it does seem like the IFR Probability fields are affected by the strong gradient in low-level temperature, where the dewpoint drops from the teens (<sup>o<\/sup>C, grey\/blue to cyan in the enhancement) to the single digits (purple and white in the enhancement).  Note that SSTs in the region where the 1000-mb dewpoints are in the single digits are between 10 and 14 C at both <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/ACSPOSST-20220228_212144.png\">~2100 UTC 28 February<\/a> and <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/ACSPOSST-20220301_094124.png\">~0930 UTC 1 March<\/a>  (ACSPO SSTs at the link are derived from Direct Broadcast data from CIMSS and are available via an LDM feed).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/CONUSIFRProbNUCAPSTd1000-20220301_0930toggle.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"749\" height=\"450\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/CONUSIFRProbNUCAPSTd1000-20220301_0930toggle.gif\" alt=\"\" class=\"wp-image-44894\" \/><\/a><figcaption>Gridded NUCAPS estimates of low-level (1000 mb) dewpoint, and (CONUS) GOES-16 IFR Probability, 0930 UC on 1 March 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>The toggle below compares gridded NUCAPS estimates of 1000-mb relative humidity with Low IFR Probability fields.  There again seems to be a relationship.  How robust that relationship is is to be determined.   This is the first in a series of blog posts that compares these two fields, as part of a way of better forecasting fog over the oceans.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/GriddedNUCAPS1000RH_LowIFRProb-20220301_0930toggle.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"948\" height=\"450\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2022\/03\/GriddedNUCAPS1000RH_LowIFRProb-20220301_0930toggle.gif\" alt=\"\" class=\"wp-image-44897\" \/><\/a><figcaption>Gridded NUCAPS estimates of low-level (1000 mb) relative humidity, and (CONUS) GOES-16 Low-IFR Probability, 0930 UC on 1 March 2022 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>AWIPS imagery in this blog post was created using the NOAA\/NESDIS TOWR-S AWIPS Cloud Instance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The image above (from 2100 UTC on 28 February 2022) and below (from 0930 UTC on 1 March 2022) toggle between low-level estimates of 1000-mb dewpoint and GOES-16 IFR Probability fields. Is there a general relationship between the two? At first blush, it does seem like the IFR Probability fields are affected by the strong [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":44899,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,74,78,83],"tags":[],"class_list":["post-44892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fog-detection","category-goes-16","category-noaa-20","category-nucaps"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44892","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=44892"}],"version-history":[{"count":2,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44892\/revisions"}],"predecessor-version":[{"id":44900,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44892\/revisions\/44900"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/44899"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=44892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=44892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=44892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}