LICK OBSERVATORY, 1888. 4200-ft. MT. HAMILTON 120-inch REFLECTOR.
Image courtesy: Mt. Washington Observatory
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Transcript of Image courtesy: Mt. Washington Observatory
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Image courtesy: Mt. Washington Observatory
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Québec fires – air quality & monitoring via satellites
31 May, 2010 event
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At least 54 fires in southern Québec – NASA MODIS image – 30 May 2010
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MODIS close-up of the smoke from the Quebec fires – 31 May, 2010
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31 May 2010 - MODIS
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31 May 2010 – MODIS false color
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Sunglint in Gulf of Mexico – 31 May
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How do we know where the smoke originated?
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Ground observations
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Webcam view of downtown Burlington on the morning of May 31, 2010 showing visibility reduced to below 2 miles in smoke.
National Weather Service Burlington
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Mt. Washington – 31 May, 2010
Images courtesy: Mt. Washington Observatory
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Brian Clark – Observer and Meteorologist (Mt. Washington) “We actually started to see effects from these wildfires
earlier in our shift last week. Ryan commented on the red moon he saw a few days ago, which in retrospect, was most certainly caused by smoke or ash aloft. Yesterday morning, we saw the first signs of significant amounts of smoke with what I have been calling a "smoke undercast", for lack of better term, below the summit. We often see cloud undercasts, which are simply clouds that we are looking down on the tops of below the mountain. In this case, there was a distinct layer of smoke filling the valleys below and blocking our view of anything below about 5,000 feet.” 22:17 31 May, 2010
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Why was this episode relatively short-lived?
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Jet stream (500-mb) map from Environment Canada – 1 June 2010
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Jet stream (500-mb) map from Environment Canada – 2 June 2010
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Why should we be interested in Quebec forest fires?
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Quebec forest fires 6 July, 2002
smoke shown in light blue
heat signatures in red
GOES imagery thermal and visible
bands
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View from Here through Clean Air: http://www.hazecam.net/burlington.html
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Quebec Forest Fire, 7/7/02
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MODIS: The Fine-Scale Picture The Fires and the Smoke Transport of Smoke from N. Quebec to SE Canada and NE US.
7/5/02 MODIS 7/6/02 MODIS
MODIS Land Rapid Response System
7/7/02 MODIS
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Forest fire impacts
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Forest fire impacts tropospheric ozone
particulate matter
aviation hazard
human health
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View of the Boston Skyline by automated CAMNET on 7/16/99
(a few hours before JFK Jr’s plane went Down near Martha’s Vineyard)
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Ozone injury
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Smoke Produces Particulate Matter that Adversely Affects Human Health
increased premature deaths aggravation of respiratory or
cardiovascular illness lung function decrements increased work loss changes in lung function/structure/natural
defense
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Criteria Pollutants Carbon Monoxide
Particulate Matter
Ozone
Nitrogen Oxide
Lead
Sulfur Dioxide
National Air Quality Standards
Key criteria pollutants generated by fire
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Image (or graphic) obtained from the U.S. Air Quality Smog Blog (http://alg.umbc.edu/usaq).
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Image (or graphic) obtained from the U.S. Air Quality Smog Blog (http://alg.umbc.edu/usaq).
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