Global Warming?

[Egon]

If you have ever seen a glacier the streaks in the ice are sections of the flow traveling at different speeds. The center of the flow travels fastest. The uneven travel speed creates crevasses. Opening and closing at different travel speeds./QUOTE]

Sure have seen a glacier or two. Even travelled across/up/over them on ski's. Even tied up to other fellows with rope's when doing this. Fortunetly the oportunity to see the ice varving in a crevice never occured. If'n I was at home with access to my pictures there would be lot's of pictures available.

Flow impedments and Boundary layer friction make for a myriad of unique crevase forming situations.

 

[Egon]

In Canahoidian Popycock is equatable to Oompa.:thumbsup:

 

[Short Game]

In Canahoidian Popycock is equatable to Oompa.:thumbsup:

I believe it's also related to bull-pucky.

 

[Egon]

Actually, sir, you are not correct when you say, "that ice is composed of salt water." Au contaire, mon ami... If you melt some of that ice the water is almost pure! It is NOT composed OF salt water. It was made FROM salt water and that is NOT the same thing.
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This will explain why there are people that talk about moving Ice Bergs to Cities requiring fresh water!

 

[EE_Bota]

I believe it's also related to bull-pucky.

Well, if it is soft bull-pucky, you are very close to defining the more technical meaning of the word. When I looked it up, it comes from the Nordic parts of Europe, and translates to roughly "soft excrement."

 

[powerpace]

Actually, sir, you are not correct when you say, "that ice is composed of salt water." Au contraire, mon ami... If you melt some of that ice the water is almost pure! It is NOT composed OF salt water. It was made FROM salt water and that is NOT the same thing.

As the ocean water begins to freeze, small needle-like ice crystals called frazil form. These crystals are typically 3 to 4 millimeters in diameter. Because salt doesn't freeze, the crystals expel salt into the water, and frazil crystals consist of nearly pure fresh water.

I was on Viet Nam GI bill when I took 14 upper division semester hours of physical oceanography in the physics department at San Diego State University so consider the above mini-tutorial as yet another federal tax rebate.

It has been years since I had an opportunity to dredge up those old memories. Thanks...

Oh, if anyone want some interesting reading (real science not hyperbole) then Icelights: Your Burning Questions About Ice & Climate

Pat

Frazil crystals are correct but don't forget Spicules starting the process.
Your partially right about the salt water freezing. In the process of cooling the salinity of the top layers increases the convective currents. The more rapid the freezing the more sea water is trapped between the ice crystals. The actual brine content depends on the age of the ice, temperature changes and how fast it freezes. Sea ice that has made ridges by compression will drain most of the salt crystals out and can be used for fresh water. Sea ice that has remained flat will be soggy and deteriorate and retain the brine.

U.S.M.C. Meteorology 1968-1975. With special assignments and TAD. Been there done it.

 

[powerpace]

Actually, sir, you are not correct when you say, "that ice is composed of salt water." Au contaire, mon ami... If you melt some of that ice the water is almost pure! It is NOT composed OF salt water. It was made FROM salt water and that is NOT the same thing.
---------
-----------

This will explain why there are people that talk about moving Ice Bergs to Cities requiring fresh water!

Ice bergs start out as fresh water. They are a result of land based ice streams "Glaciers" breaking off into the ocean. Sea ice is a different animal.

 

[powerpace]

Manmade? Well, that is always going to be in doubt in the minds of a few until we quit dumping CO2 into the atmosphere and then see a temperature decline. That won't happen. But climate change. How about the Gulf Stream quits flowing?

The CO2 has been higher in past cycles of climate changes. Ocean currents are dependent on the Rotation of the Earth, the Salinity of the water and Cyclic periods of heating and cooling of the ocean surface.
Last I heard the Gulf Stream was still moving quite well.

Everytime a Volcano erupts the temperature decreases because of the particles in the atmosphere. Several periods of "no summer" have occurred in the last 200 years. Krakatoa and Mt Pinatubo come to mind.

 

[EE_Bota]

Ice bergs start out as fresh water. They are a result of land based ice streams "Glaciers" breaking off into the ocean. Sea ice is a different animal.

I think this is correct. I have heard it that way. I think you made many points that are correct in regard to this discussion.

 

[powerpace]

I think this is correct. I have heard it that way. I think you made many points that are correct in regard to this discussion.

Thanks.
In regards to patrick_g. The information in this site is very informative. Icelights: Your Burning Questions About Ice & Climate If you read the various sidebars and posts you will see we are a long way from total disaster. If people and governments get past the panic and realize a warm cycle is happening adaptations can be made. In ten thousand years we can adapt for a cold cycle. The Earth will never be stable. It never was in the past, why should it be in the future.

For you volcanoligists. Why would you ever bomb a volcano? | Eruptions | Big Think
This gives a much better idea on how man has tried to alter nature and the futility in the long run. I remember the Etna bombings. If I remember correctly the original plan was to bomb the volcano into submission. The plan was changed to divert the lava flow.