Whats going on at yellowstone?

reply to post by starlitestarbrite


I know, I haven't seen one animal lately.
Do they ever clean off the screen? Someone said that the dark stuff on the screen was just dirt, but I don't see any black dirt on the ground. I see a white and sandy colored ground. So darker appearance in the steam and black dirt on the screen, hmmmmm

YLT and LKWY are just switching off, one after the other, with little spikes today.

Something is definitely bumping around down there.

reply to post by sickofitall2012


I don't remember where I read this, but dirt on the transparent screen in front of the camera is due to silica deposits coming from geyser steam and it's apparently a normal thing.

reply to post by questioningall
Interesting, that. Here's a screenshot I took back on Jan 9 2009 for comparison (I liked the bison) :



(Image is cropped to save space. Original image supplied by stardot-tech.com.)

It looks as if it was darker then than it is now, but it's hard to say as we have to allow for variations in lighting and so on. But the shot above was late morning with similar skies to your image, so the available lighting shouldn't be that much different. No argument, though, than OF's steam/water appears darker than the other ones in the background in your pic. I don't know if that might partly be a function of the volumes ejected or their source water's quality. I'm not qualified to say.

I'd like to note that I haven't seen any signs of animals around OF lately either, but as wild animals like bison move to where the forage is, maybe they just found somewhere with better pickings. I hope that's all it might mean, anyway.

EDIT to add: Just had another look at your pic for comparison. Yours has brighter lighting so that's likely why in mine the eruptive steam looks darker. If we balanced the lighting in both on photoshop or something it would be interesting to see if there's any effective change.

Mike


[edit on 21/1/09 by JustMike]

reply to post by alysha.angel


www.intlvrc.org...

Originally posted by geogeek
reply to post by alysha.angel

 

www.intlvrc.org...

its a bit pricey but ill save the link for later......

thank you

One thing I have noticed today is that OF has erupted the last 2 times about 4 minutes early; I'm sure that's within the bounds of normality but.. it's a small flux in activity. The last steam plume looked nice and white..

On GEE, TA.H17A is showing frequent activity which has very low amplitude on YLT (these two stations are just a few hundred meters far from each other). This means that fast (high-frequency) but small ground movement (since TA.H17A reports ground movement velocity, while YLT ground movement amplitude) is occurring. What could be causing this?

reply to post by akjen
Plus or minus a few minutes is well within normality. And as you say, the just-completed eruption looked very nice and white. And that makes me wonder: could it be that Old Faithful is fed by two different sources, with variations in quality? It apparently has both "long" and "short" eruptions, but is there any information that says its eruptions derive only from one aquifer? I haven't read that this is the case (and I haven't read that it isn't, either). So I'm just wondering if the "white" eruptions may derive from one source and the "dirty" ones from another. It kind of makes sense to me, and might account for its variability in eruptive power/volume as well.

Edited to correct "it's" to "its". Sorry about that. Bad hair day.



[edit on 21/1/09 by JustMike]

reply to post by Shirakawa
Forgive me if I misunderstood as it's getting late here, but do you mean that this movement is in the z axis (ie up and down)? And what sort of frequency are we looking at, in cycles/sec?

Thanks,

Mike

Originally posted by JustMike
And that makes me wonder: could it be that Old Faithful is fed by two different sources, with variations in quality?

I've read (sorry, I don't remember where) that it's possible to predict the eruption time of Old Faithful because it's fed by its own (single?) source of water, while with other geysers in the surroundings it's not possible because they share multiple ones.

Originally posted by JustMike
reply to post by Shirakawa
Forgive me if I misunderstood as it's getting late here, but do you mean that this movement is in the z axis (ie up and down)? And what sort of frequency are we looking at, in cycles/sec?

I mean that TA.H17A detects the speed (microns/second) of ground movement, while YLT its amount (microns), and that clear spikes on TA.H17A show only as very small bumps on YLT. This means (in my opinion) that what is occurring at the moment near these stations is frequent fast movement, but of very small entity.

[edit on 2009/1/21 by Shirakawa]

reply to post by Shirakawa
Thanks for that info. I'll do some more research on it to see if it's actually somehow been proved OF has only a single source, or if alternatively that's simply assumed to be the case. But I take your point that having its own source doesn't have to mean it's from only one aquifer.

Edit: darn, just posted the above then saw you'd added an edit to reply to my query to you!

Okay, so as the movements are very small and they are occurring at this time of day (time there now is a little after 2pm MT), we can't exclude the possibility of cultural noise. Even some local vehicular traffic could be the cause. However, if they're still showing in around ten or 12 hours from now then we'd have to consider other sources.

Regards,

Mike



[edit on 21/1/09 by JustMike]

Really weird looking thing coming in at YLA right now.

Looks like it has to be a technical glitch because on GEE it's just one big solid block of about 014 nanometers. (teeny)

Right between two spikes, the larger later one registering in the micrometers range at YLT.

reply to post by quakewatcher

Now that's funky!

reply to post by quakewatcher
Yep, looks weird, doesn't it? Didn't we see something like this on a few of them just a couple or three days ago, but larger and of longer duration? It sure doesn't look very natural so as you say, may be a glitch.

At OF Webcam they have the next prediction time followed by +/- 10 minutes.. Was that there before??

reply to post by Hx3_1963


We should be grateful this is not happening at YS

reply to post by akjen


No it was not there before its just gone like that today.

reply to post by PuterMan


The smallest of those ones has the energy of every earthquake occurred during the first December 2008 swarm, summed.

Originally posted by quakewatcher
Really weird looking thing coming in at YLA right now.

Looks like it has to be a technical glitch because on GEE it's just one big solid block of about 014 nanometers. (teeny)

Right between two spikes, the larger later one registering in the micrometers range at YLT.

YMV also?