MSGID: 1:317/3 647396c5
PID: hpt/lnx 1.9.0-cur 2019-01-08
TID: hpt/lnx 1.9.0-cur 2019-01-08
May 28, 2023 - Smoke from Canadian Wildfires over Europe

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   The Canadian wildfire season has been exceptionally severe in 2023,
   with large, fierce fires scorching huge swaths of western forest and
   pumping vast rivers of smoke into the atmosphere.

   Each spring the fire risk rises in Alberta, Saskatchewan, and the
   northeastern edge of British Columbia—naturally dry areas that lie in
   the rain shadow of the Canadian Rockies. There is a period each year,
   after snow melts but before spring growth begins, that dry forest
   undergrowth is exposed. The risk of wildfire usually increases in
   March, and the region typically suffers several handfuls of small,
   short-lived blazes for a few months after that time.

   But in May 2023, this naturally fire-prone dry period coincided with
   unusually hot and windy weather, turning what normally would have been
   scattered small fires into huge wildland blazes that raged for several
   weeks. The fires, ignited by lightning or human activity, charred more
   than 1 million hectares (400 square miles) as of May 24, and lofted
   smoke high into the atmosphere.

   The smoke blanketed the skies of North America for weeks, followed the
   curves of the jet streak, and swirled into two separate extratropical
   cyclones. By late May, streams of airborne smoke had crossed the
   Atlantic Ocean to reach Europe.

   On May 25, the Moderate Resolution Imaging Spectroradiometer (MODIS) on
   board NASA’s Terra satellite acquired a true-color image of a streak of
   smoke over Denmark and Sweden. The smoke originated in Western Canada,
   more than 4,200 miles (6,760 km) away.

   Image Facts
   Satellite:  Terra
   Date Acquired: 5/25/2023
   Resolutions:  1km (539.8 KB),  500m (1.3 MB),  250m (940.6 KB)
   Bands Used: 1,4,3
   Image Credit: MODIS Land Rapid Response Team, NASA GSFC



https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2023-05-28
 
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