Sunday, December 11, 2005

Details of the glow on Mount St Helens

Now that the focus of the Volcanocam is fixed, we can see a lot more detail in the nighttime images. Including the incandescent glow being emitted by the individual hotspots in the crater - which appear as flickering lights in the animations from the night. Shown below is a composite of images from the night of 09/10 December. Clearly visible are a number of discrete hotspots from different areas of the growing lavadome. Also visible are the two defective, or "hot" pixels in the camera.

The following image consists of the hotspots from the above composite, superimposed onto a n averaged daytime image from the 10th December.

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