[Geomag-daily] [EXTERNAL] RE: [Ext] Re: Daily bad Total Field Values at Deadhorse Observatory

[Sauter, Edward]

Karen,
Thanks for thinking about this and making us consider other posible sources
of corruption.

The disturbance may not be man caused, but after looking over the
BGS/Haliburton data from their observatory, there is some kind of a
disturbance taking place.  Because the BGS/Haliburton data has only minute
values, and we see minimal evidence in our variation data, it is difficult
to say for certain, but Abe Claycomb, Josh Rigler and I looked over data
plots from the disturbed period on 9/25, and there is obviously a
disturbance to the BGS/Haliburton data during the same period.

As for wildlife or wind, I would expect it would have happened before now,
and been noticed.

I guess we will just have to keep looking and hopefully we find the source
of the interference, or it goes away.  Regardless, at this point, I will
keep monitoring and sending out the status of missing Total Field 1 second
values from Deadhorse, but until I have something else to investigate, I
won't be looking at equipment malfunction as the source of the problem.

Next week. we will look at the disturbed data periods to see when (date
wise) this disturbance started to see if that lends anything.

Ed Sauter

On Fri, Sep 28, 2018 at 1:16 PM Karen Remick <kjoutflow2004 at yahoo.com>
wrote:

> Ed,
> I don't think it's caused by human activity due to the remoteness. There
> just isn't any activity out there. In addition, the instruments are far
> enough from the pad that even the heavy duty loader clearing the snow in
> winter doesn't cause a blip. So a human cause would need to involve huge
> amounts of metal or getting something large and metal close to the
> building. At this time of year anything heavy would sink and it would be a
> steady problem not intermittent. Would the disturbance happen if the
> building was shaken? Then it could be wildlife or wind that's responsible.
> Other than that I'd look for a technical issue.
> Karen
>
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