2010 - index
OSEI volcano products include multichannel color composite imagery showing ash clouds (VSH), hotspots from lava
flow (VIR) or both (VOL). We also create grayscale "split-window" images which use a channel differencing
technique that enhances the appearance of ash clouds in imagery (DIF). This technique is oftenuseful for
distinguishing ash clouds from water vapor clouds.
The Washington Volcanic Ash Advisory Center has real time satellite imagery and derived advisory products at:
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The following image files have recently been added to the Volcano archive...
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