Posted on 01/29/2015 9:56:43 AM PST by NormsRevenge
Listening to icebergs could help to assess the extent of glacier melt, scientists report.
Researchers in Poland, the UK and US have found different types of icebergs have their own acoustic signature as they calve away from the ice.
Monitoring this could help to determine how much ice is being lost and the effect this could have on global sea level rise.
The findings are reported in the journal Geophysical Research Letters.
Oskar Glowacki, from the Institute of Geophysics at the Polish Academy of Sciences, said: "Using acoustics, we can get very accurate data and we can collect this data continuously. We just place the hydrophones - underwater microphones - in the water and listen to the sounds."
The researchers used their kit to capture every rumble, groan and snap as ice cleaved away from the Hans Glacier in Svalbard.
Combining this with time-lapse photography, they discovered that the birth of different types of icebergs creates different sounds. The team found three acoustic signatures from this tidal glacier.
(Excerpt) Read more at bbc.com ...
Underwater acoustic signatures of glacier calving
http://onlinelibrary.wiley.com/doi/10.1002/2014GL062859/abstract?campaign=wlytk-41855.6211458333
Ima gonna sign an iceberg and take it to the SXSW Music Festival in Austin, Texas. We are going to highlight the plight of melting icebergs.
I have a record album of earthquake/plates sounds as recorded by seismic meters.
There is a warning on the LP that the low frequency rumbling and abruptness of intensity could damage your needles or speakers.
Somehow, someway, this will end up with more of my money stolen for preservation/research/recording contracts for the icebergs
“Monitoring this could help to determine how much ice is being lost and the effect this could have on global sea level rise.”
http://www.physlink.com/Education/AskExperts/ae389.cfm
Question
Assume there is an ice cube in a glass of water. When the ice cube melts, will the water level have risen, fallen, or remained the same? Why?
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Answer
Lets see now. Some intuitive center in my brain is screaming ‘it will remain the same’, but we will try to think it over.
In the first state, we have an ice cube of mass m floating in the water. If it is floating (in equilibrium), it will have to displace enough water to support its weight. How much is that? It is just Volume = m/d , where m is the mass of the ice cube, and d is the density of water.
In the second state, where the ice has melted, it turns into water of volume.... Volume = m/d! exactly the same volume as it displaced before. So the added volume is the same, so the level of the water will not change.
As a matter of fact, as long as objects are floating (i.e. they don’t rest on the bottom) they displace enough water to support their mass. Since by turning from solid to liquid, the mass of water does not change (well, maybe it does, due to mass-energy equivalence, but that’s _really_ negligible) it will keep displacing the same amount of water.
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The water level remains the same when the ice cube melts.
A floating object displaces an amount of water equal to its own weight. Since water expands when it freezes, one ounce of frozen water has a larger volume than one ounce of liquid water. A completely submerged ice cube weighing one ounce, for example, displaces MORE than one ounce of liquid water. The cube will rise until the volume remaining under the surface displaces only one ounce of water.
If you could remove the ice cube and leave a ‘hole’ in the water where the cube used to float without disturbing the surrounding water, that hole would take exactly one ounce of liquid water to fill. Let the ice cube melt. Since it is now one ounce of liquid water, putting it back into the ‘hole’ will exactly fill it and leave the remaining water undisturbed.
Water levels rise and fall with tides.
Temperatures rise and fall with fluctuations of solar activity.
The anticapitalist misanthropes behind the barking moonbat conspiracy theories that man is killing the planet are wrong.
FOREIGNER
“Cold As Ice”
You’re as cold as ice
You’re willing to sacrifice our love
You never take advice
Someday you’ll pay the price, I know
I’ve seen it before
It happens all the time
You’re closing the door
You leave the world behind
You’re digging for gold
Yet throwing away
A fortune in feelings
But someday you’ll pay
You’re as cold as ice
You’re willing to sacrifice our love
You want Paradise
But someday you’ll pay the price
I know
I’ve seen it before
It happens all the time
You’re closing the door
You leave the world behind
You’re digging for gold
Yet throwing away
A fortune in feelings
But someday you’ll pay
Cold as ice, you know that you are
Cold, (cold) as, (as) ice,
As cold as ice to me
(Cold, cold cold) (as, as, as) (ice)
(Ooh, ooh, ooh, cold as, cold as ice)
(You’re as cold as icccce)
You’re as cold as ice
(Cold as icccce),
Cold as ice I know
(You’re as cold as icccce)
You’re as cold as ice
(Cold as iccce)
Cold as ice I know
(You’re as cold as icccce)
Oh yes I know
(Cold as icccce)
(You’re as cold as icccce)
You’re as cold as ice
(Cold as icccce)
Cold as ice I know
(You’re as cold as icccce)
Oh, yes I know
(Cold as icccce)
Can’t you hear the cries of the icebergs?
Why will not humanity listen to the screams of Mother Gaia who we are torturing?
This has the beginnings of a good joke.
How many Poles does it take to listen to an iceberg?
(had to say it nicely even though I’m Polish but don’t want to get banned)
In an upcoming animated movie by Disney or Dreamworks, the
icebergs won’t just have a ‘sound signature’ they will have actual voices and dialog. The new bergs will squeak like a piccolo, the older ones will groan like a tuba or ‘laugh’ like clarinets.
It would make it a as flagship PBS begging program as well.
Add all the money spent on SOSUS etc. by the Navy. All these maroons had to do was research SONAR to study this, but that would mean no TDY funds!
National Lampoon Radio Hour: The Humpback Whale
http://www.youtube.com/watch?v=vPVRqYHVtk0
Indeed .
a HUGE..MINISERIES....replete with the normal PBS Products...such Shopping Bags. Mugs...T Shirts
STOP THE ICEBERG KILLERS NOW!!
Micro Audio. I’d like to hear the sound of a spider’s “foot” beats. May I please have a $10,000,000.00 grant?
I’m sure they’re trying to tell us something...
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