22 April 1998 -- Asian Dust Over the North Pacific Ocean
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Hold any mouse button down as you move the cursor across the large GOES-9 visible image; the smaller inset window shows the corresponding GOES-9 10.7-12.0 micron split window difference IR image. In the visible image, Asian dust appears hazy against the normally dark ocean background; the highest concentrations of dust appear darkest in the split window IR image.