{"id":26022,"date":"2017-11-09T20:23:19","date_gmt":"2017-11-09T20:23:19","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=26022"},"modified":"2017-11-20T15:48:46","modified_gmt":"2017-11-20T15:48:46","slug":"deadly-smog-in-india-and-pakistan","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/26022","title":{"rendered":"Deadly Smog in India and Pakistan"},"content":{"rendered":"
\"\"<\/a>

Suomi NPP VIIRS Day Night Band Visible Imagery (0.70 \u00b5m) at Night, 05, 07 and 08 November 2017 (Click to enlarge).<\/p><\/div>\n

Suomi NPP VIIRS Visible Imagery at Night (the Day Night Band Visible Image (0.7 \u00b5m) from 5 November<\/a>, 7 November<\/a> and 8 November<\/a>), above, and Infrared Channel Brightness Temperature Difference\u00a0 (11.45 \u00b5m – 3.9 \u00b5m) on 5 November<\/a>, 7 November <\/a>and 8 November<\/a>), below, both show the presence of fog\/smog over northern Pakistan and northwestern India from 05-08 November 2017 (Suomi NPP VIIRS Imagery courtesy of William Straka, CIMSS). The Smog led the Government of Punjab to ban burning of stubble;<\/a> schools in Delhi<\/a> were closed.\u00a0 Vehicle crashes linked to reduced visibilities have killed at least 10 people (source<\/a>).\u00a0 Air Quality in the region is very poor as shown in this Screen Grab<\/a> from this site<\/a>.<\/p>\n

\"\"<\/a>

Suomi NPP VIIRS Infrared channel Brightness Temperature Difference (11.45 \u00b5m – 3.9 \u00b5m) on 05, 07, and 08 November 2017 (Click to enlarge)<\/p><\/div>\n

An animation of Meteosat-8 Visible Imagery, below, from 03-09 November, shows little improvement in conditions in the past week.<\/p>\n

\"\"<\/a>

Meteosat-8 Visible Imagery (0.6 \u00b5m) at 0300 UTC from 03 to 09 November 2017 (Click to enlarge)<\/p><\/div>\n

Daily composites of Suomi NPP VIIRS true-color Red-Green-Blue (RGB) images from RealEarth<\/a>, below, showed the areal coverage of the smog during the 03-09 November period. Surface observations at New Delhi’s Indira Gandhi International Airport indicated that the visibility remained below one statute mile — with zero visibility at times — during the 72-hour period spanning 07 November<\/a>, 08 November<\/a> and 09 November<\/a> (animation<\/a>).<\/p>\n

\"Daily<\/a>

Daily composites of Suomi NPP VIIRS true-color RGB images (click to enlarge)<\/p><\/div>\n

Worth noting on a nighttime comparison of Suomi NPP VIIRS Infrared Brightness Difference (11.45-3.74 \u00b5m) and Day\/Night Band (0.7 \u00b5m) images, below, was the appearance of a cloud shadow being cast by moonlight onto the top of the boundary layer smog\/fog.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS Infrared Brightness Difference (11.45-3.74 \u00b5m) and Day\/Night Band (0.7 \u00b5m) images [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Suomi NPP VIIRS Visible Imagery at Night (the Day Night Band Visible Image (0.7 \u00b5m) from 5 November, 7 November and 8 November), above, and Infrared Channel Brightness Temperature Difference\u00a0 (11.45 \u00b5m – 3.9 \u00b5m) on 5 November, 7 November and 8 November), below, both show the presence of fog\/smog over northern Pakistan and northwestern […]<\/p>\n","protected":false},"author":19,"featured_media":26031,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,23,45,49,48],"tags":[],"class_list":["post-26022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-quality","category-meteosat","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26022","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=26022"}],"version-history":[{"count":12,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26022\/revisions"}],"predecessor-version":[{"id":26148,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26022\/revisions\/26148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/26031"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=26022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=26022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=26022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}