Pacific Systems

Are there any paleoclimatologists in here? I am very curious about something.?

If I am not mistaken, weather is partially determined by land formation and land formation changes very slowly.

Now please look at the map below:

http://rgh.cc/displayimagetempo.php?pos=-4752

As you can see, places like South China and the Americas currently experiences typhoons/cyclones/hurricanes far more than the Europe (which is practically zero).

Would it be a valid and a sound thing to say that it was the same situation 2000 to 3000 years ago, a very short time geographically speaking?

Thank you

Tropical system development and the track they take will depend on the location of the land masses and its effect on the air currents as well and the sea currents. The air currents are important because places that have warm enough waters to support tropical systems may have little, if any, tropical systems due to strong mid to upper level wind shear. That is the reason why you see almost no tropical activity in the tropics south of the equator off south America in the Atlantic Ocean. For Europe, the warm current will start to mix with the cold current dropping south of the polar region/ This would rapidly cool the sea surface temperatures to temperature that will be too cool to support tropical systems that move into this area. Even though the sea surface temperature will not support these systems, tropical systems that curve around the eastern Atlantic would usually travel at a relatively fast speed as it moves along the warm current that flows northward over the Eastern Atlantic. Because it takes time for a well organized system to wind down and dissipate or to lose its tropical characteristics, they tend to move survive farther away in distance after leaving an area of warmer waters support than Pacific systems.

To better see all of this, here are some links to look at.

This is the animation of the sea surface temperature over time.

http://staff.orecity.k12.or.us/steve.tebor/atm%20currents/current/html/surface_temp.html

This link will show you the warm gulf stream over the eastern Atlantic and is part of the reason why tropical systems tend to survive and move farther to the north than over the eastern Pacific.

http://staff.orecity.k12.or.us/steve.tebor/atm%20currents/index.htm

This link will show you the warm and cold currents. Note how the cold and warm current merges near Europe over the Atlantic.

http://staff.orecity.k12.or.us/steve.tebor/atm%20currents/current/html/sst_simulation.html

This satellite animation based on the 2005 hurricane season which shows how tropical systems would curve around the Atlantic and speed up towards Europe, but will dissipate as it gets near Europe.

This links tells why hurricanes are extremely rare over the south tropical Atlantic.

http://www.aoml.noaa.gov/hrd/tcfaq/G6.html

Since both atmospheric currents and oceanic currents and their interactions are complex and any minor changes can have significant effects on the movement of water and air and the location of both kinds of currents, I would think it would be very difficult to say how valid and sound your statement is without doing or looking over some major research work

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