• MODIS Pic of the Day 03 July 2023

    From Dan Richter@1:317/3 to All on Mon Jul 3 12:00:12 2023
    July 3, 2023 - Burn Scars in Eastern Canada

    [image07032023_main.jpg] [image07032023_rollover.jpg]

    June 29, 2023 June 2, 2023
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    After an exceptionally dry and warm May, a storm front brought intense
    lightning to the Canadian province of Quebec on June 1, 2023. According
    to a report by the Quebec provincial government, 3,024 lightning
    strikes struck in and near the province on June 1. 139 fires broke out
    that single day, with 95% attributed to lighting.

    With fire conditions high to extreme, some of these fires spread wildly
    to become true “fire giants”. With continued extreme fire weather, 144
    additional blazes broke out across Quebec during June. The government
    reported that in June alone there were 1,459,048 ha of forest burned in
    the intensive protected area and 852,523 ha in the northern area.
    That’s a total of more than 2.3 million hectares (8,900 square
    miles)—larger than area encompassed by the U.S. state of New Jersey.

    Thankfully, rain and cooler temperatures have helped reduce fire
    weather, aided firefighting efforts, and reduced the intensity of
    several forest fires. As of July 3, several communities will lift
    evacuation notices so citizens can return home. Some (but not all)
    previously closed roads and access to some forests will also reopen.
    This doesn’t mean the fires are quenched, however. The Société de
    protection des forêts contre le feu (SOPFEU) continues to battle 65
    active fires, of which 3 are out of control, and 25 of which are
    high-priority fires as of July 2.

    On June 29, prior to the recent rainy weather, the Moderate Resolution
    Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired a
    false-color image of burn scars from the recent fires in Quebec
    province. In this type of image, vegetation appears bright green, water
    is dark blue or black, smoke can look blue or gray, and clouds are
    usually white but high, cold cloud can be tinted light electric blue.
    Burn scars, which are charred land that remains after fire passes, can
    range from brick red to black. Small orange-red spots mark actively
    burning fire.

    On June 29 the province was covered by many burn scars. Some,
    especially in the north, were truly massive. Smoke billowed from the
    western edge of the largest scar and a long line of active fire was
    visible. While burn scars were abundant further south, there were very
    few signs of active fire.

    Much of the province, especially in the north, is speckled with lakes,
    streams and bogs. Because each of these appear dark, it can be a bit
    difficult to sort out some burn scar from fire. However, Aqua MODIS
    also acquired a false-color image of the same area on June 2, and this
    image can be viewed by clicking the date under the image. The
    difference between June 2 and June 29 is readily apparent. On June 2
    only a very few of the newly-ignited fires have yet grown hot enough to
    be marked with an orange hot spot or to show smoke.

    Image Facts
    Satellite: Aqua
    Date Acquired: 6/29/2023
    Resolutions: 1km (1.4 MB), 500m (3.5 MB), 250m (2.2 MB)
    Bands Used: 7,2,1
    Image Credit: MODIS Land Rapid Response Team, NASA GSFC



    https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2023-07-03

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