Worsening Weather, Earthquakes, Vortices, Volcanoes, CMEs ... What's Up?

[Irene]

That reminds me of what happens on Mars, as one of the polar ice caps is much bigger than the other.

There is no land under the Arctic. Is that a possible reason? 

[Pimander]

However, a new study by the Potsdam Institute for Climate Impact Research (PIK) and the British Antarctic Survey brings the worrying news that melting ice shelves can have a knock-on effect on ice flows, accelerating inland ice melt and pushing up the sea level.

"Ice shelves are highly important. They can buttress the ice flow from the continent into the ocean," Ronja Reese, lead author of the study and researcher at PIK, told DW. Erosion of ice shelves that regulate the flow means more water ends up in the ocean.
http://www.dw.com/en/new-study-links-antarctic-ice-shelf-melt-to-global-sea-level-rise/a-41756310

More precise measurements show West Antarctica ice melt accelerating

[ArMaP]

There is no land under the Arctic. Is that a possible reason? 

I don't know, but look at Mars. Even with no liquid water (at least on the surface) it also has more ice on the south pole than on the north pole.

[Irene]

Geez, I don't know. They look about the same.

[ArMaP]

One thing I forgot and just read about Mars' polar caps and that is the same on Earth: the altitude of the north pole is lower than the altitude of the south pole, so it's natural that they have different behaviours.

[zorgon]

One thing I forgot and just read about Mars' polar caps and that is the same on Earth: the altitude of the north pole is lower than the altitude of the south pole, so it's natural that they have different behaviours.

That is actually a very valid point. Her e in Las Vegas we get summers that are over 100F (38C) yet in June we have had snow on Mount Charleston... that mountain is 7,510′

So valley floor is hooter than Hades but nice and cool up top

[zorgon]

Just a random post here...

This is from 1969  I guess FOX news is tired of the BS and is pulling up some old interesting articles  1969 was before the internet LOL

Photo of fiery bubble that stretches 65 feet in the air stuns the Internet


A "rare" lava-dome fountain spews lava in Hawaii on October 11, 1969.  (J.B. Judd/USGS)

A red-hot bubble was caught on camera spewing out steaming hot lava 65 feet in the air -- and the Internet wants to know more.

The United States Geological Survey (USGS) shared the picture on "Throwback Thursday" last week to highlight a "rare" lava-dome fountain that was spotted in Hawaii on October 11, 1969.

"Dome fountain of episode 10, October 10–13, 1969, eruption of Kilauea Volcano," USGS tweeted. "Symmetrical dome fountains such as this are rare."

Lava domes -- or volcanic domes -- vary in size and shape. They can reach up to 1,640 feet high, but typically stay within ranges of 30 to 320 feet, according to the USGS.

They're also pretty common. They're formed by viscous (gooey) magma that piles up around the opening of the volvano, also known as the "vent," according to research compiled by Oregon State.

http://www.foxnews.com/science/2018/04/04/photo-fiery-bubble-that-stretches-65-feet-in-air-stuns-internet.html

[zorgon]

Huge Bubble of Hot Rock May Be Rising Under New England

RUN FOR THE HILLS!!! 

If the findings hold up, the northeastern U.S. may be more geologically active than anyone realized.


Colorful forests fill the landscape in the Berkshires of western Massachusetts.
PHOTOGRAPH BY BERTHOLD STEINHILBER, LAIF, REDUX

By Erin Blakemore
PUBLISHED DECEMBER 5, 2017

At first glance, New England doesn't seem like a hotbed of geologic activity. The region doesn't have any rumbling volcanoes. Earthquakes are almost unheard of. And its mountains are mere hills compared to ranges like the Rockies or the Sierra Nevada in the western U.S.

But don't underestimate what's going on beneath the surface: It turns out this idyllic pocket of the northeastern U.S. may sit atop a rising mass of warm rock—a smaller, slower version of the magma pockets under well-known volcanic zones.

The findings, recently published in the journal Geology, suggest that New England may not be so immune to abrupt geological change.

SHIFTING PERSPECTIVES
New England residents don't need to panic. The upwelling is likely tens of millions of years old, which would make it a relatively recent development in geological terms, and it's moving very slowly. For now, it certainly hasn't gotten close enough to the surface to shape New England's geography or create a volcano.

"Maybe it didn't have time yet, or maybe it is too small and will never make it," says Levin. "Come back in 50 million years, and we'll see what happens."

https://news.nationalgeographic.com/2017/12/magma-bubble-rising-under-new-england-volcanoes-science/

[zorgon]

yeah that time line thing is holding onto my attention in a big way
with more questions all the time cause no two folk have the same preception

All my life THIS symbols was on Ambulances 



Now they tell me that is WRONG  so I looked up ambulances and I see THIS



Yet if you do search the old one still appears on many old things like that patch at top

[space otter]

Complimentary FREE Chemistry Lesson

When water freezes it EXPANDS. Water is the ONLY substance that does this.

Ergo when the ice in the sea melts there will be no change in sea level.

You can do this at home  Take a glass of water with ice cubes  Fill it to the brin, the ice will float above the rim. Wait for it to melt... It will not over flow the glass The floating ice has already accounted for the displacement.

As the Arctic has no land mass beneath the ice there will be no sea level change

i am having a very hard time swallowing this free lesson 
the ocean isn't a glass
i need to go read stuff and figure out why your lesson isn't sitting well with me
sigh.. like i needed more things to think about...sigh

we have had so much rain that things are slippin' and slidin' around here and it's getting scary..
april 9th and i haven't been able to even put green onions in the ground..everything squishes


edit cause i can't speel  sigh

[zorgon]

i am having a very hard time swallowing this free lesson 

No your not supposed to DRINK the water, just watch it

This is basic high school chemistry  well it was in my day 


Why does ice melting not change the water level in a container?

I have read the explanation for this in several textbooks, but I am struggling to understand it via Archimedes' principle. If someone can clarify with a diagram or something so I can understand or a clear equation explanation that would be great.

Good question.

Assume we have one cube of ice in a glass of water. The ice displaces some of that water, raising the height of the water by an amount we will call hh.

Archimedes' principle states that the weight of water displaced will equal the upward buoyancy force provided by that water. In this case,

Weight of water displaced=mwater displacedg=ρVg=ρAhg
Weight of water displaced=mwater displacedg=ρVg=ρAhg
where VV is volume of water displaced, ρρ is density of water, AA is the surface area of the glass and gg is acceleration due to gravity.

Therefore the upward buoyancy force acting on the ice is ρAhgρAhg.

Now the downward weight of ice is micegmiceg.

Now because the ice is neither sinking nor floating, these must balance. That is:

ρAhg=miceg
ρAhg=miceg
Therefore,

h=miceρA
h=miceρA
Now when the ice melts, this height difference due to buoyancy goes to 0. But now an additional mass micemice of water has been added to the cup in the form of water. Since mass is conserved, the mass of ice that has melted has been turned into an equivalent mass of water.

The volume of such water added to the cup is thus:

V=miceρ
V=miceρ
and therefore,

Ah=miceρ
Ah=miceρ
So,

h=miceρA
h=miceρA
That is, the height the water has increased due to the melted ice is exactly the same as the height increase due to buoyancy before the ice had melted.

https://physics.stackexchange.com/questions/110645/why-does-ice-melting-not-change-the-water-level-in-a-container


NOTE The formulas show properly on the website

https://physics.stackexchange.com/questions/110645/why-does-ice-melting-not-change-the-water-level-in-a-container

HOWEVER  Icebergs are fresh water because the salt doesn't freeze in the water  so there would be a very slight increase in sea level to account for the Archimedes effect, but only slight

An interesting side point is that if too much ice melts into the oceans, including land ice from glaciers and mountain, it can change the salinity of the salt water by adding fresh water to the mix.

Since Ocean Ships are designed for a specific salinity to determine their bouyancy, any drastic change in that salinity and they can sink 

[Pimander]

i am having a very hard time swallowing this free lesson 
the ocean isn't a glass

http://www.thelivingmoon.com/forum/index.php?topic=1141.msg142684#msg142684

[ArMaP]

i am having a very hard time swallowing this free lesson 
the ocean isn't a glass
i need to go read stuff and figure out why your lesson isn't sitting well with me
sigh.. like i needed more things to think about...sigh

Think of the opposite situation:
You have a body of water and some of it freezes. How much water does that body of water has?
Exactly the same, as no water was added or removed. Because of that, when that ice melts everything remains the same.

[zorgon]

http://www.thelivingmoon.com/forum/index.php?topic=1141.msg142684#msg142684

Yes but we are talking of SEA ICE not changing the level  and ArMaP's layman example is PERFECT as I forgot that the fresh water ice comes from salt water so it would not change at all Good one ArMaP 

IF you count all the ice and snow on LAND melting into the oceans then yes, naturally there would be an increase

But that is not happening

Antarctic Sea Ice Reaches New Record Maximum

Antarctica and the Arctic are two very different environments: the former is a continent surrounded by ocean, the latter is ocean enclosed by land. As a result, sea ice behaves very differently in the two regions. While the Antarctic sea ice yearly wintertime maximum extent hit record highs from 2012 to 2014 before returning to average levels in 2015

https://www.nasa.gov/content/goddard/antarctic-sea-ice-reaches-new-record-maximum

They did however add THIS  (can't say the Global Warming is a sham )

both the Arctic wintertime maximum and its summer minimum extent have been in a sharp decline for the past decades. Studies show that globally, the decreases in Arctic sea ice far exceed the increases in Antarctic sea ice.

[space otter]

lots of interesting reading..and even some pictures 

http://www.bbc.com/news/science-environment-43713719
Climate change dials down Atlantic Ocean heating system
By Victoria Gill
Science correspondent, BBC News
11 April 2018

WHOI

A significant shift in the system of ocean currents that helps keep parts of Europe warm could send temperatures in the UK lower, scientists have found.

They say the Atlantic Ocean circulation system is weaker now than it has been for more than 1,000 years - and has changed significantly in the past 150.

The study, in the journal Nature, says it may be a response to increased melting ice and is likely to continue.

Researchers say that could have an impact on Atlantic ecosystems.

Scientists involved in the Atlas project - the largest study of deep Atlantic ecosystems ever undertaken - say the impact will not be of the order played out in the 2004 Hollywood blockbuster The Day After Tomorrow.

But they say changes to the conveyor-belt-like system - also known as the Atlantic Meridional Overturning Circulation (Amoc) - could cool the North Atlantic and north-west Europe and transform some deep-ocean ecosystems.

rest at link

.........................................


https://www.sciencealert.com/bottom-ocean-literally-sinking-under-weight-melting-glaciers-climate-change
The Bottom of The Ocean Has Started Sinking Under The Weight of Melting Glaciers
Jeez.

PETER DOCKRILL 8 JAN 2018
Decades of measurements and predictions of sea level rise could have underestimated the scale of the problem, experts warn, due to scientists not accounting for the weighty, warping effects of our ever burgeoning oceans.

https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017GL075419

............................

https://www.livescience.com/62275-new-ocean-current-madagascar.html

New Ocean Current Discovered Off the Coast of Madagascar
By Sarah Wild, Live Science Contributor | April 11, 2018 10:05am ET


A previously unknown ocean current was recently discovered "by accident" off the coast of Madagascar, a rare find in the 21st century.

.......................................

https://www.livescience.com/62277-ocean-tides-magnetic-field.html
Oceans' Mysterious Magnetic Field Is Mapped in Stunning Detail from Space
By Laura Geggel, Senior Writer | April 11, 2018 01:20pm ET