Tsumani churning of oceans

[sigurdur]

The tsumani from the Chiliean earthquake should provide quit a churning of the Pacific. It will be interesting to see if there is any quick temp change in the water.

[nautonnier]

Let's hope that the Chileans are not to harmed by the earthquake. They are a very friendly people and it is an advanced country. Most of their newer structures are built to withstand earthquakes. But once you get much above 7 on the exponential scale then there is not a lot you can build to survive just limit the damage.

I recommend their red wines or perhaps a Pichuncho or Pisco sour

[sigurdur]

I wish the Chilean people the best in this as well. An 8.8 is so strong.

The energy of a tsumani reaching Japan etc tho.....think of the speed of this as well as the ocean floor. I can't imagine that it won't have some churning/upwelling effect on the whole Pacific.

[curiousgeorge]

Feb 27, 2010 17:38:20 GMT sigurdur said:

I wish the Chilean people the best in this as well. An 8.8 is so strong.

The energy of a tsumani reaching Japan etc tho.....think of the speed of this as well as the ocean floor. I can't imagine that it won't have some churning/upwelling effect on the whole Pacific.

Depending on the energy and landstrike waves on Hawaii I'm also wondering if it could trigger some significant landslides from sudden erosion. Take a look at the topography around there on Google Earth. Very steep ascent from the ocean floor to the dry land on the SE of the big island.

[wiscman]

Interesting article from 2005 about this very topic in regards to Indian Ocean tsunami

www.hindu.com/2005/02/02/stories/2005020203041200.htm

NEW DELHI, FEB. 1. Could the tsunami that hit the Indian coast impact global climate? Scientists at ISRO have found that the temperature over a vast stretch of the Indian Ocean had cooled significantly around the same time the tsunami struck, raising the question whether it could have a cascading impact on the atmosphere and consequently the climate across the world.

Speaking to The Hindu , Vijay K. Agarwal of ISRO's Space Application Centre in Ahmedabad, said data collected by a satellite operated by the U.S. and Japan, which were consequently corroborated by information from a data buoy on the surface of the Indian Ocean, have shown that the sea surface temperatures had come down by between one and 2.5 degree Celsius around the same time the tsunami struck. The temperature change was found over a large block of the Indian Ocean from the central Bay of Bengal to the Equator, which would be about 200 million sq.km. The anomaly had persisted for about a week.

Wind speed doubled


The scientists at SAC, he said, have also found that the wind speed on the surface of the Indian Ocean had doubled from 20 km to 40 km an hour around the same time as the tsunami waves sped across the sea. The findings, however, need to be further analysed to know whether the cooling of the sea surface and doubling of the wind speed had been caused by the tsunami or whether any other factor was involved, he said. "... The findings are interesting as this is for the first time there has been a report of any change in temperature or wind speed about the same time as a tsunami anywhere in the world.''

[Ratty]

Can we expect to see a "mixing" in the Pacific which may have an effect on global climate?

If the answer is "yes" we'd better start educating the population that it isn't anthropogenic.

[nautonnier]

Feb 28, 2010 23:03:09 GMT Ratty said:

Can we expect to see a "mixing" in the Pacific which may have an effect on global climate?

If the answer is "yes" we'd better start educating the population that it isn't anthropogenic.

Too late Ratty - didn't you know that the earthquakes and volcanic eruptions are CAUSED by anthropogenic global warming [cough] climate change?

Therefore any tsunami is also caused by human activity... QED

www.livescience.com/environment/070830_gw_quakes.html



(you have to admit that the entire edifice has a certain religious fundamentalism about it)

[Ratty]

I'm sorry ..... I forgot that everything has its cause in human mis-behaviour.

[gridley]

Well, at least one scientist says the quake has shortened the day... though they admit it will be difficult to measure accurately enough to confirm this.

www.businessweek.com/news/2010-03-01/chilean-quake-likely-shifted-earth-s-axis-nasa-scientist-says.html

[Ratty]

Mar 1, 2010 22:20:30 GMT gridley said:

Well, at least one scientist says the quake has shortened the day... though they admit it will be difficult to measure accurately enough to confirm this.

www.businessweek.com/news/2010-03-01/chilean-quake-likely-shifted-earth-s-axis-nasa-scientist-says.html

I remember the same issue being raised after the 2004 Indian Ocean tsunami.

Shorter days must mean less sunshine and will obviously lead to a cooling of the planet.

Problem solved!

[okgal]

Could/will the Tsunami churning have an effect on an El Nino or La nina.

[sigurdur]

Mar 1, 2010 23:46:18 GMT okgal said:

Could/will the Tsunami churning have an effect on an El Nino or La nina.

I think this is something that bears watching. That was one of my questions, as for sure there should have been upwelling etc from the very bottom of the ocean. Not the "normal" wave pattern at all.

[karlox]

"How fragile we are..."

Sad to watch how even much more politically and socially developped countries -even consolidated democracies, still so scarce in our world- collapse once nature´s forces strike so hard...
Someone´s got any founded data establishing some type of connection between current Earth´s sismic and volcanic activity and current trend-status of our Magnetic field and shield and/or Solar activity in the past recent years?
I remember reading through this forums theories pointing in that direction. Now my perception is that both sismic and volcanic events are hitting harder lately, including related phenomena such as Tsunamis, we would now be perhaps -saddly enough- in the right time to measure and evaluate this possibility more deeply; but for this ´personal perceptions´ are not valid nor scientific, I think.
Would like to have someone´s more founded opinion than mine...

[Ratty]

If there was a proven correlation between rising CO2 levels and seismic activity, I could become a warmer. Fickle, I know .......

[nautonnier]

Mar 2, 2010 8:44:23 GMT karlox said:

"How fragile we are..."

Sad to watch how even much more politically and socially developped countries -even consolidated democracies, still so scarce in our world- collapse once nature´s forces strike so hard...
Someone´s got any founded data establishing some type of connection between current Earth´s sismic and volcanic activity and current trend-status of our Magnetic field and shield and/or Solar activity in the past recent years?
I remember reading through this forums theories pointing in that direction. Now my perception is that both sismic and volcanic events are hitting harder lately, including related phenomena such as Tsunamis, we would now be perhaps -saddly enough- in the right time to measure and evaluate this possibility more deeply; but for this ´personal perceptions´ are not valid nor scientific, I think.
Would like to have someone´s more founded opinion than mine...

Yes this has been postulated...

Earthquakes

www.springerlink.com/content/753717276h869880/

and
Volcanoes

www.agu.org/pubs/crossref/1989/JB094iB12p17371.shtml

Discussion on the 'old board' went over this - briefly....

Sun has an epitrochoid orbit around the barycenter (center of mass of the Solar System - see Rhodes Fairbridge). As the Sun and the barycenter move so the Earth's orbit is also distorted leading to earthquakes and volcanoes where the stresses in the crust are already close to the edge.