Dynamic Planet B/C

[windu34]

The form of the equation of state is:
o AS + BS^3/2 CS^2

Where A, B, and C are functions of temperature (ºC) and S is salinity. The coefficients
for the combined data are:
A = 8.24493 x 10-1 – 4.0899 x 10-3 t + 7.6438 x 10-5 t2
– 8.2467 x 10-7 t3 + 5.3875 x 10-9 t4
B = -5.72466 x 10-3 + 1.0227 x 10-4 t – 1.6546 x 10-6 t2
C = 4.8314 x 10-4

Here's probably what you're looking for but I doubt you'll ever need to use this formula. Most density calculations on tests I've taken comes in the form of a T-S diagram.

Source: http://ocean.stanford.edu/courses/bomc/ ... ure_03.pdf (Page 10)

As for my question...
What are the differences between El Niño and La Niña. Make sure to also compare with "normal" conditions.

They are essentially opposites: La Nina is the "normal" condition is which trade winds weaken and upwelling occurs off the coast of South America. El Nino occurs when trade winds near the equator are exceptionally strong and warm water is pushed into South American coast (Pacific) resulting in the impedence of upwelling and damages to their fishing industry

[liberalartslover]

Hmm... not quite.
During La Niña, trade winds (blow towards the west) increase and cause the water to upwell, bringing cold water and a lot of biological productivity so lots of fishing. During El Niño, the trade winds reverse (blow towards the east). This causes the water to be warmer on top, have a more well developed, deeper thermocline, and a lack of biological productivity. However, this does result in more rainfall on land because there is a low pressure system in South America. La Niña is basically an amplification of "normal" conditions while El Niño is the opposite.

[windu34]

Hmm... not quite.
During La Niña, trade winds (blow towards the west) increase and cause the water to upwell, bringing cold water and a lot of biological productivity so lots of fishing. During El Niño, the trade winds reverse (blow towards the east). This causes the water to be warmer on top, have a more well developed, deeper thermocline, and a lack of biological productivity. However, this does result in more rainfall on land because there is a low pressure system in South America. La Niña is basically an amplification of "normal" conditions while El Niño is the opposite.

ahh ok gotcha

[brayden box]

windu34 wrote "ahh ok gotcha

you forgot a question.

[UTF-8 U+6211 U+662F]

Close! You got the classes of estuaries correct, however, the four main types of water mixing in estuaries are:
1) Vertically Mixed
2) Slightly Stratified
3) Highly Stratified
4) Salt Wedge

and if you could teach me how to use hide that would be great

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[ampy1234567]

No one's posted in a while so...

What happens to a wave as it approaches the shoreline in terms of period, wavelength, speed, frequency, and amplitude?

[windu34]

No one's posted in a while so...

What happens to a wave as it approaches the shoreline in terms of period, wavelength, speed, frequency, and amplitude?

Period and wavelength decrease, frequency and amplitude increase?

[ampy1234567]

No one's posted in a while so...

What happens to a wave as it approaches the shoreline in terms of period, wavelength, speed, frequency, and amplitude?

Period and wavelength decrease, frequency and amplitude increase?

I didn't remember this either (Click to Show Hidden Text)

Amplitude increases, period and frequency stay the same, and wavelength and speed decreases. I forgot to mention steepness in the problem; that increases until the wave breaks.

Alright your turn.

[windu34]

How does an arch form in a headland?

[amydata123]

I think... (Click to Show Hidden Text)

The ocean erodes the land until an arch is formed. First it would turn into a cave, though, which is just creating a hole that does not go till the other side. Then the ocean would erode it completely so it is seen from the other side.

to previous question... I do not know how to reply