[Geysers] Long-term periodicities at Steamboat (& elsewhere)?

[Bruce Jensen]

Wow, thanks for pointing this out, Brian.  Not only does the temp vary on a pretty regular period, it also appears to have a variation pattern (at least on the December graph) that might repeat regularly.
It would be interesting to see if this pattern persists during a disturbance.

Bruce Jensen,

California, USA

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"[Yellowstone] is a fabulous country, the only fabulous country; it is the one place where miracles not only happen, but where they happen all the time." ~ Thomas Wolfe

--- On Sun, 1/2/11, Davis, Brian L. <brdavis at iusb.edu> wrote:

From: Davis, Brian L. <brdavis at iusb.edu>
Subject: [Geysers] Long-term periodicities at Steamboat (& elsewhere)?
To: "geysers at lists.wallawalla.edu" <geysers at lists.wallawalla.edu>
Date: Sunday, January 2, 2011, 4:37 PM

Looking at the Steamboat temperature log here:

http://volcanoes.usgs.gov/yvo/activity/monitoring/norris/steamboat.php

I noticed something I'd never known before (I know, there's a LOT I don't know) - Steamboat seems to have a nicely periodic 4.5 day cycle (most easily seen in the monthly graph). That surprised me, and got me thinking about what could do that, as well as when in the cycle a major is most likely to happen. Is there any information on this?

While on the subject of long-term cycles, what others are known? I realize Giant hot periods might fit in this category, but I'm not sure what else might? Annual cycles might be related to seasonality, but certainly this doesn't explain things like a 4.5 day cycle.

-- 
Brian Davis
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