• MODIS Pic of the Day 07 March 2022

    From Dan Richter@1:317/3 to All on Mon Mar 7 11:00:06 2022
    March 7, 2022 - Floodwaters Reach Australia's Channel Country

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    Torrential rains over eastern Australia brought severe flooding to
    parts of Queensland and New South Wales in early March 2022. Media
    reported that tens of thousands of residents along southeastern
    Australia coast had been evacuated, with about 1,000 rescues in New
    South Wales by March 1. According to AccuWeather, the city of Brisbane
    received more than 24.1 inches (611.6 mm) of rain in a three-day period
    (February 24-27), setting the record for its wettest three-day period
    since weather data tracking begin in 1840. According to the Center for
    Disaster Philanthropy, the Insurance Council of Australia extended the
    area declared an insurance catastrophe from south-east Queensland into
    northern New South Wales in order to help prioritize handling more than
    15,000 claims that had already been lodged by March 1.

    While the floods were nothing short of catastrophic across the coastal
    regions, the flooding has brought water trickling inland, even to
    Australia’s Channel Country—an area so named because of the dry
    riverbeds (channels) that mark the arid interior area. The region is
    also known for its ephemeral lakes, which are dry (or nearly so) most
    of the year. Channel Country flooding is a fairly common occurrence at
    the end of summer, but this year’s massive flooding has brought large
    amounts of water to the region.

    On March 3, the Moderate Resolution Imaging Spectroradiometer (MODIS)
    on board NASA’s Aqua satellite acquired a false color image of flooding
    in the Channel Country of southwestern Queensland. This type of
    false-color image is particularly useful to separate out deep water
    (deep blue) and shallow water or moist salt flats (light blue) from dry
    land (brown) and vegetation (bright green). This image shows water in
    Lakes Machattie, Mipia and Koolivoo. The floodplains of the Georgina
    River and Eyre Creek are flushed with green vegetation far northward,
    heading into the Northern Territory.

    While this one image is useful to show the amount of water in the
    region on this particular day, to better understand the change over
    time it is best to compare two images. Thanks to the NASA Worldview
    app, it is easy to view two Aqua MODIS images of the same area
    collected on two different days. A roll over comparison of this image,
    acquired March 3 and another acquired before the flooding, on January
    24 can be viewed by clicking here

    Worldview: Explore Your Dynamic Planet The NASA Worldview app provides
    a satellite's perspective of the planet as it looks today and as it has
    in the past through daily satellite images. Worldview is part of NASA’s
    Earth Observing System Data and Information System. EOSDIS makes the
    agency's large repository of data accessible and freely available to
    the public.

    Image Facts
    Satellite: Aqua
    Date Acquired: 3/3/2022
    Resolutions: 1km (33.7 KB), 500m (73.4 KB), 250m (187 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=2022-03-07

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