Sunday, December 24, 2006

A Xmas mystery on Mount St Helens



Mount St Helens has been quietly active over the last few days, with two hot-spots visible in the crater last night - as shown in the stacked set of images above - and intermittently over the last week or so.

However, at 18:47 yesterday evening a large bright light appeared above and to the left of the crater as seen in this enhanced image which was superimposed over a daylight image of Mount St Helens for reference.


This bright spot only appeared on this one image, and no others. So it is likely that it is nothing more than a glitch or due to noise - however, the spot is much larger than the usual noise spikes that I have seen in the images from the Volcanocam over the last two years.

Below is the original image, and beneath that a b&w image with that had the noise filtered out - so you can see that I'm not making this up!


Any thoughts as to what it may be?

3 Comments:

Anonymous Bob Harrington said...

Hi Daz,

When the camera switches to IR mode after dark, the visible light image goes a tad fuzzy. I'm going to make a guess that the 'mystery light' is the out-of-focus image of a navigation or anti-collision strobe on a passing aircraft.

Whether the source is a bit of Boeing or Airbus flying tubework - or perhaps a reindeer afterburner - is left for the reader to decide...

Thanks for all the work you have done to bring us all the glows that's fit to print!

Bob ^,,^

2006-12-30, 3:02 a.m.  
Anonymous Anonymous said...

Oncoming aircraft headlight?

2007-01-08, 9:33 a.m.  
Blogger Daz said...

No idea - we haven't seen anything else like it before or since ...

2007-06-27, 10:59 p.m.  

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