During class about two weeks ago, my class preformed an experiment on water currents and El Nino. Our friends from Rutgers helped us do this experiment. This experiment was preformed using a tank filled with water, food coloring, salt and three dividers. First, we put a divider into the middle of the tank. This split the water into two halves. On one side we put no salt. On the other side we filled it with about 10 table spoons of salt, making it more dense than the other side of water. To discern the two sides we put a drop of blue food coloring into one side. When the divider was released the two sides acted as currents. Slowly, the more dense side (blue water) shifted under the less dense side (clear water). Density is based on how thick the substance is. You can find density by using the formula: mass /volume. To conclude the experiment, we split the water into thirds and added more salt to only one of the sides. Our class discussed that this is how the currents move inside an ocean.
I learned that there are two different formulas for predicting tides. One formula is (2) dh/dt = - Sum{aƒH sin[at + (Vo+u) - K]} = 0. Wow! That is crazy!I also learned that the most recent El Nino was on January 3rd, 1998.The picture above of the earths levels of warm water between normal and mild El Nino of 1995 and 1996. The highest water level is illustrated with red.
i got my information from
[http://antwrp.gsfc.nasa.gov/apod/ap980113.html]
[http://co-ops.nos.noaa.gov/predmach.html]
