[Geysers] Geyser activity gleaned from the internet

[Michael Goldberg]

Thanks, Demetri, for setting the record straight.
I drew the wrong conclusion from the available data.

>From the looks of it, the USGS temperature monitor at Constant shows 
evidence of the 16-17 minute cycles, but doesn't distinguish whether an 
eruption occurs.  I'm going to guess that what's happening is that the 
wash of hot water from an eruption is brief enough (as compared to the 
sampling frequency of the recorder) that on average only one eruption per 
day actually gets caught.

Michael Goldberg
Michael.Goldberg at uc.edu

On Wed, 24 Jul 2013, Demetri Stoumbos wrote:

> I sat on Whirligig for a few hours while at Norris on July 19th (with no 
> success) but saw many Constants.  I noticed the pool pushing every 16-17 
> minutes, and with each push it made an attempt to erupt, sometimes 
> succeeding, sometimes failing.  About 1/2 to 2/3 of the pushes resulted 
> in an eruption, and each push I saw following a failed push ended up in 
> an eruption, that is to say no two successive pushes were both failures. 
> In addition, if Constant had two successful pushes in a row, the 
> next/third push would fail.
>
> On that note, I also sat on Vixen for a couple hours.  When I first got 
> there, everything was silent and dry save for some moisture in the 
> sinter gravel around the cone, but after a couple minutes I started 
> hearing some boiling.  The next half hour of boiling building to 
> splashing reminded me of how Uncertain builds up to an eruption, except 
> on a much faster time scale.  The first eruption at 12:35 lasted about 
> half a minute, and it only took 7 minutes for me to hear first boiling, 
> by which time everything was dry again thanks to the glaring sun.  The 
> next half hour progressed much like the previous wait had, except when 
> the splashing got to the point where the last eruption had commenced, 
> Vixen just sat there giving vent-filling splashes every now and then for 
> about half an hour until a big enough one triggered the second eruption 
> at 13:39 for a duration of 2m35s and an interval of 1h04m.  Afterwards I 
> went to look at Veteran for a little while (more than 7 minutes), and 
> when I came back to Vixen, there was still no audible boiling, but a 
> couple shallow pools remained around the pool.
>
> Demetri Stoumbos
>
>
> On Mon, Jul 22, 2013 at 7:29 PM, Michael Goldberg <goldbeml at ucmail.uc.edu>wrote:
>
>> There are a few geyser events that I heard of in one place or another but
>> they haven't (as far as I know) been mentioned here.
>> In no particular order:
>>
>> East Sentinel was observed in eruption on June 27.
>>
>> North Goggles Geyser had a series of minor eruptions yesterday, July 21.
>> This is the first known activity since October 9 last year.
>>
>> At Norris, Echinus was observed in eruption on May 5.  Based on the USGS
>> temperature monitor, it had a second eruption that day, then a "false
>> start" episode, then returned to dormancy.  Constant Geyser is active but
>> not very frequent.  The temperature record suggests that it is erupting on
>> average once per day.
>>
>> Michael Goldberg
>> Michael.Goldberg at uc.edu
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>