• MODIS Pic of the Day 20 October 2021

    From Dan Richter@1:317/3 to All on Wed Oct 20 11:00:10 2021
    October 20, 2021 - Lake Nasser (Lake Nubia) and the Toska Lakes

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    Lake Nasser
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    On October 19, 2021, the Moderate Resolution Imaging Spectroradiometer
    (MODIS) on board NASA’s Aqua satellite acquired a true-color image of
    one of the world’s largest artificial lakes. Called Lake Nasser in
    Egypt and Lake Nubia in Sudan, the blue waters of the sprawling
    reservoir stand out in stark contrast to the tans and creams of the
    arid deserts surrounding the lake.

    Lake Nasser is named after the Egyptian President Gamal Abdul Nasser,
    who is largely responsible for the lake’s creation. President Nasser
    decided to build the Aswan High Dam across the Nile, forming a lake
    approximately 550 kilometers (340 miles) long. The construction of this
    dam was completed in 1970 after 11 years of construction.

    The Toshka Lakes, located to the northwest of Lake Nasser, were created
    in the 1980s and 1990s by the diversion of water from Lake Nasser
    through a manmade canal into the Sahara Desert. Flooding of the Toshka
    Depression created four main lakes and the opportunity to extend
    agriculture into the previously desert depression.

    Lake Nasser plays an important role in Egypt’s economy. Approximately
    one quarter of the nation’s population works in agriculture, which
    depends heavily on irrigation. With a reliable source of water from
    Lake Nasser, farmers have been able to plant more crops and to do so
    multiple times per year with the aid of fertilizers. After the
    reservoir was filled, the country was able to increase its arable land
    by 30 percent in the first few years, particularly to the west of the
    lake. Lake Nasser has also created a fishing industry and is a popular
    tourist attraction due to its crocodiles and historic monuments that
    were saved by moving them from the now-flooded areas before the
    reservoir was completed.

    Image Facts
    Satellite: Aqua
    Date Acquired: 10/19/2021
    Resolutions: 1km (174 KB), 500m (447.4 KB), 250m (239.3 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=2021-10-20

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