{"id":28041,"date":"2018-05-15T23:16:04","date_gmt":"2018-05-15T23:16:04","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=28041"},"modified":"2018-05-21T14:25:23","modified_gmt":"2018-05-21T14:25:23","slug":"fires-in-saskatchewan","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/28041","title":{"rendered":"Fires in Saskatchewan"},"content":{"rendered":"
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GOES-16 ABI Band 1 (“Blue Visible”, 0.47 \u00b5m, top), Band 2 (“Red Visible”, 0.64 \u00b5m, middle) and Band 7 (“Shortwave Infrared”, 3.9 \u00b5m, bottom) from 1345 to 2230 UTC on 15 May 2018 (Click to animate);\u00a0 Note that the yellow enhancement in the shortwave infrared starts at 305 K.<\/p><\/div>\n

Fires that developed over the plains of Saskatchewan, near Meadow Lake<\/a> in west-central Saskatchewan, and near Prince Albert<\/a> in central Saskatchewan, showed up well in Visible and Infrared imagery, shown above.\u00a0 A wind shift that occurred as the fires burned changed the direction of the smoke plume.\u00a0 Prince Albert<\/a> had visibilities that dropped to 3 statute miles.\u00a0 Meadow Lake<\/a> had visibilities down to 4 statute miles.<\/p>\n

True-Color imagery (Source: (Link<\/a>), imagery provided by Paul Ford, ECC Canada), also shows the distinct smoke plumes from the fires.<\/p>\n

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True-Color imagery over Saskatchewan, 1730-2000 UTC<\/p><\/div>\n

The Dual-Pol S-band radar at Radisson<\/a> captured the plume north of Prince Albert at 1900 UTC (See below; click here<\/a> for the satellite imagery at that time).\u00a0 Very small Cross-Correlation coefficients are apparent in the smoke plume. The radar at 2010 UTC (link<\/a>) suggests 3 separate fires, which agrees with the satellite imagery. (Click here for 2015 UTC<\/a> Satellite Imagery).<\/p>\n

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Cross-Correlation Scan from the dual pol, S-band at Radisson, Saskatchewan, 1900 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

Many Thanks to Paul Ford, ECC Canada<\/a>, for the radar imagery, and for alerting us to this event. Saskatchewan fires can be tracked at this website<\/a>. Most of Saskatchewan is currently under a fire ban<\/a>.<\/p>\n


\n========== ADDED ============<\/center>AWIPS imagery of this fire were collected. Click here<\/a> to see the towns of the region. Full-disk imagery is available from GOES-16 at 15-minute increments. The 3.9\u00a0\u00b5m imagery is shown from 1200 to 2345 UTC, followed by the Fire RGB Imagery. The Fire RGB image combines the 3.9 \u00b5m (Red), 2.2 \u00b5m (Green) and 1.6 \u00b5m (Blue) imagery. The wavelength of the radiation emitted by the fire decreases as the temperature of the fire increases; a relatively cool fire will emit mostly 3.9 \u00b5m energy and will be red in the RGB. A very hot fire will emit all three wavelengths and will appear whiter in the RGB.<\/p>\n
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GOES-16 ABI Band 7 (“Shortwave Infrared”, 3.9 \u00b5m) from 1200 to 2345 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

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GOES-16 ABI Fire RGB, combining 3.9 \u00b5m, 2.2\u00a0\u00b5m and 1.6\u00a0\u00b5m imagery, from 1200 to 2345 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

The imagery below is zoomed in on the region of the three fires.\u00a0 (Map<\/a>).\u00a0 The 3.9 \u00b5m is shown first, then the Fire RGB.<\/p>\n

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GOES-16 ABI Band 7 (“Shortwave Infrared”, 3.9 \u00b5m) from 1200 to 2345 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

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GOES-16 ABI Fire RGB, combining 3.9 \u00b5m, 2.2 \u00b5m and 1.6 \u00b5m imagery, from 1200 to 2345 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

 <\/p>\n

The RGB — like many — gives an excellent qualitative estimate of the fire.\u00a0 Quantitative estimates are available that more define the fire more comprehensively. The 1845 UTC Fire RGB<\/a> suggests a very hot fire (the 3.9 \u00b5m imagery at 1845 UTC<\/a> suggests the same thing). What do the Baseline fire products show? The Fire Temperature, Fire Power, and Fire Area products for 1845 UTC are shown below.\u00a0 (Animations are here:\u00a0 Fire Temperature<\/a>, Fire Power,<\/a> Fire Area<\/a>)\u00a0\u00a0 Hotter fire pixels are apparent at 1745<\/a> and 2015<\/a> UTC.\u00a0\u00a0\u00a0 Click for toggles of Band 7 (3.9 \u00b5m), Fire RGB and Baseline Fire Temperature at 1745 UTC<\/a>, 1845 UTC<\/a>, and 2015 UTC<\/a>.\u00a0 These products might facilitate resource allocation in a way that single channels or RGB combinations cannot.<\/p>\n

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GOES-16 Baseline Fire Temperature Product 1845 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

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GOES-16 Fire Power Baseline Product, 1845 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n

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GOES-16 ABI Fire Area Baseline Product at 1845 UTC on 15 May 2018 (Click to enlarge)<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Fires that developed over the plains of Saskatchewan, near Meadow Lake in west-central Saskatchewan, and near Prince Albert in central Saskatchewan, showed up well in Visible and Infrared imagery, shown above.\u00a0 A wind shift that occurred as the fires burned changed the direction of the smoke plume.\u00a0 Prince Albert had visibilities that dropped to 3 […]<\/p>\n","protected":false},"author":19,"featured_media":28043,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,6,74],"tags":[],"class_list":["post-28041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-quality","category-fire-detection","category-goes-16"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/28041","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=28041"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/28041\/revisions"}],"predecessor-version":[{"id":28120,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/28041\/revisions\/28120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/28043"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=28041"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=28041"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=28041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}