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The different between "Puterman" and myself, beyond my being a geologist and not finding any sort of self-importance in misplaced references to "spectrograms" and "Fourier transforms" in a long, drawn-out post involving nothing but a terminal case of posturing ...
I may be mistaken, but earlier weren't you claiming the offered "harmonic tremors" were telemetry noise?
Microseisisms from storms, pressure drops, and other things, look nothing like harmonic tremors.
Furthermore the only instruments able to register such microseisisms, would be broad-band stations .. such as YMR, which is both broadband and strong-motion.
Seismic noise spectra contains two prominent peaks at 0.05-0.1 and 0.1-0.3 Hz called primary and secondary microseisms, respectively. The primary microseism originates from direct forcing of strong oceanic waves while the secondary microseism which is characterized by stronger amplitudes is produced at double frequency by a nonlinear interaction of these waves as suggested by Longuet-Higgins [1950].
Although there is little doubt that a part of the ambient noise is related with the interaction of oceanic waves with the coast, it is not the only situation where waves propagating in opposite directions are encountered. Kedar et al. [2008] used a wave action model to implement Longuet-Higgins theory and found that particular regions in the deep oceans are potential sources of secondary microseism excitation. This is related to specific conditions of meteorological forcing associated with resonances of the water column. Their results indicate that secondary microseisms can be generated in specific deep-water areas with one example in the Atlantic ocean south of Greenland.
We compute noise cross correlations for three seismic arrays located within continents in the Northern hemisphere. During summer months, when most of strong storms are located in the Southern hemisphere, the observed noise cross correlations are dominated by arrivals at near!zero times. Polarization analysis clearly indicates that these arrivals are composed of teleseismic P waves. We then use a beam-forming analysis to determine precisely back azimuths and slowness corresponding to these arrivals and to back project them to the regions where the energy was generated based on ray tracing in a global spherically symmetric Earth model.
These observations confirm that the source of secondary microseisms are not confined in the coastal areas as it is often accepted by seismologists. On average, the excitation of P waves by oceanic waves is stronger in the deep oceans. It does not mean, however, that there is no excitation along the coast, particularly when storms hit the shoreline.
And for future reference, water is not the key in big eruptions.
This is why I was able to sleep a quarter mile from the Kilauea eruption for months, without concern.
While Kilauea is currently known for its largely non-explosive eruptions, it has had large explosive eruptions in the past.[11] The most recent of such explosive eruptions occurred in 1924, when magma interacted with groundwater as the long-standing lava lake in Halema'uma'u Crater drained.
In the early morning of March 19, 2008, Halema'uma'u experienced its first explosive event since 1924 and the first eruption in the Kilauea caldera since September 1982. A steam vent that had recently opened near the overlook area exploded, generating a magnitude 3.7 earthquake, and scattering rocks over a 75-acre (300,000 m2) area. A small amount of ash was also reported at a nearby community. The explosion debris covered part of Crater Rim Drive and damaged Halema?uma?u overlook. The explosion did not release any lava, which suggests to scientists that it was driven by hydrothermal or gas sources.
These are things that armchair geophysicists don't think about. There are a great many real interpretive implications involve here. I've not spent any a whole lot of time sitting on volcanos(sic), but I'm damn sure I've spent a lot more than you. And I periodic harmonic tremors on Hawaii, which shouldn't be a surprise due to the fractures and lava tubes. I've also done a lot of seismic refraction work. Similarly GPR involves the same principles and filter processes.
That is why having a "box of rocks" does not make one a geologist.
Is Puterman a volcanologist? A geologist? Does he have a "box with rocks" somewhere?
I wouldn't have gone with the HTs for absolute certainty if I had not myself gotten absolute, positive verification from an on-site PhD volcanologist. See, this, along with my own education and extensive background,are why your little forum posturings don't really make any sort of impression of me. You've got a great echo chamber going in this thread though.
Originally posted by Ear-Responsible
Anyone know how to get equake to work w/ the latest version of firefox?
Any help is greatly appreciatededit on 25-2-2011 by Ear-Responsible because: (no reason given)
Originally posted by Trip3
reply to post by PuterMan
C'mon, malign Lowenstern? He's obviously not leading the field work. I have had someone on-site in many places I do extended field work. The last time I let them wander into that fieldwork that degreed jackass was rolling an m-48 grenade in his hand and saying "hey, guys!". Even though it was only a paint grenade, for target practice, one little servo-gear going one tooth over would be enough to take off his hand. My point here is that Lowenstern is not involved in the ongoing analysis of Yellowstone, and was not involved in the investigations. He's a public relations "face" guy. Stop with the melodrama.
I've got news for you, this isn't about you, nor I, nor any one of the reputations of those intimately involved. This is about the reality of what's going on at Yellowstone. This isn't an ego game. Your ego does not need to be given wing with every post, and does not need to be so vested in this discussion. You might consider toning it down "just a tad"
As far as I understand, if you want to make an assertion that microseisisms, or other signatures look like the signature(s) under consideration here, then you make your case yourself. You don't play "fetch" with a gofer list of things. That's not the way a discussion, nor a counter argument, is made here, nor any forum I've ever been on.
And answer what question? As far as I know my response was not verbatim from anywhere, with the exception of the "Two Events' post. If you imagine I'm going to go on a fishing trip for you, when you don't even provide "a claim" of what appears like the signatures on the 25th, you're seriously deluded.
Originally posted by PuterMan
How exactly is it that you reconcile all this? You understand of course that all we are interested in doing is establishing your credentials. We all accept that we are not experts, however you are categorically stating that you are. Is it unreasonable therefore for us to ask you to clarify some points?
Originally posted by PuterMan
That is why having a "box of rocks" does not make one a geologist.
And yet you suggested that as a point to attempt to prove I was not a geologist.
Is Puterman a volcanologist? A geologist? Does he have a "box with rocks" somewhere?
In the context of that particular post the inference was that a lack of a box of rocks disqualified me as a geologist or volcanologist. Now all of a sudden the possession of such a box does not make one a geologist, presumably because I indicated that I do possess one.
Originally posted by PuterMan
It should not be difficult for you to provide the workings of that verification then without divulging the name of the "on-site PhD volcanologist" in that case. You have to realise that you are making a very serious allegation here and no one is going to believe you without proof. Deny ignorance is our motto and whilst on some of the forums on ATS things may be a bit more "way out" shall we say, on this science based forum we require evidence.