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    Whiting of Lake Erie: Natural Hazards

    Whiting of Lake Erie: Natural Hazards

    WASHINGTON, D.C., UNITED STATES

    07.21.2011

    Courtesy Photo

    NASA

    A ''whiting event'' was ongoing in Lake Erie in late April and early May 2002. The bright turquoise color of Erie's surface waters is probably caused by elevated levels of calcium carbonate (basically chalk) sediment in the water. Lake Erie generally has a lot of calcium carbonate in it because the floor of the lake is limestone. During most of the year the calcium carbonate remains dissolved in the cold water, but as the lake warms up, the solubility of calcium carbonate is lowered. As a result, the calcium carbonate precipitates out of the water, forming clouds of very small solid particles that appear as bright swirls from above.

    This true-color image was acquired by the modarch.gsfc.nasa.gov/ Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA's terra.nasa.gov/ Terra satellite, on May 4, 2002.

    Image courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA GSFC



    NASA Identifier: LakeErie_M2002124

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    IMAGE INFO

    Date Taken: 07.21.2011
    Date Posted: 02.08.2013 10:24
    Photo ID: 844415
    Resolution: 1998x1362
    Size: 1.99 MB
    Location: WASHINGTON, D.C., US

    Web Views: 17
    Downloads: 2
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    Whiting of Lake Erie: Natural Hazards