WEBVTT FILE

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hi everyone um so this video is gonna
Center on a really cool data set that

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was collected at lone star geyser in
Yellowstone in years 2010 and 2014 and

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so this right here is the geyser cone
and what I am overlaying here is a

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representation of what the subsurface
can you pause this for a second

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alright thanks pause thanks okay so this
is a representation of what the

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subsurface plumbing system looks like
beneath the geyser or what we think it

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looks like and the main thing to take
away is that there is this cavity that's

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offset from the vent and that's we think
that's important because it allows for

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gas and pressure to build up in the
system which then leads to these

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episodic eruptions you're good so guy
lone star geyser is like many other

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geysers and that it erupts with
remarkable regularity so this is what

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the cycles look like it's showing 10
hours of data and three eruption cycles

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so at the top here this is the
temperature at the vent which is a proxy

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for the amount of water discharged so an
eruption you can tell that there's an

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eruption by this broad peak up here and
so you can see that there are these

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three eruptions in the middle I'm
showing the location of the hydrothermal

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tremor, so tremor in geyser systems is
thought to reflect bubble nucleation or

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collapse and so we see that there's this
sort of persistent location of tremor

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during the cycle and then just before an
eruption the tremor will migrate towards

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the guys event and this persistent
location corresponds to that bubble

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cavity that I showed earlier and then on
the bottom we have tilt data so this is

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showing you how the ground is deforming
and that's maybe reflecting the motion

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of subsurface fluids during the eruption
great so these time series graphs are

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kind of hard to always to figure out the
relationship between different hang-up

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okay so sometimes it can be difficult to
understand the relationships between

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different data types when you're just
looking at these time series graphs and

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so we're gonna look at a different way
of understanding that data using data

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movies that make use of sound as well as
visuals to try and understand the

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relationships between different data
types thank you so this is the key

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that's going to show us what the movie
is looks like

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so that's the water discharge or
the temperature at the vent

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no just turn it down a bit that sound

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okay great so so now that you guys know
what the different sounds and visuals

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are corresponding to now we're going to
put it all together and listen to three

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eruption cycles in 2010 and then three
eruption cycles in 2014

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okay so we wanted to look at how stable
this kind of system is over the course

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of from 2010 to 2014 so now I'm going to
play those two videos side by side so

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that you can sort of directly compare
how the eruptions line up between the

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different years

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all right um so it's really remarkable
that I don't know if you guys could pick

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out the eruptions when they were
happening but between both of the years

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the second eruption happens at exactly
the same time between the years but then

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it's it's also interesting that the last
eruption of 2010 seems delayed relative

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to the eruption in 2014 so there is
something that's making these eruptions

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extremely regular but then there is also
the ability to modulate that regularity

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and delay some eruptions so now one
other question that comes out of these

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movies is that even though the eruptions
happen very regularly the pre-play so

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there's sort of surges in activity just
before the eruptions those were really

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irregular and they seemed to happen at
completely random times in the different

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years and the different eruption cycles
so that's another question is what's

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what's causing the eruptions to be so
regular even though the sort of lead-up

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activity seems to be very irregular so
I'm for the final movie we're gonna zoom

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in on just one eruption cycles so that
we can listen to the details of the

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eruption cycle yeah

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this is that pre-play that I was talking
about

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and this is the eruption

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thanks very much everyone if anyone has any