Dynamic Planet B/C

Test your knowledge of various Science Olympiad events.
User avatar
windu34
Moderator
Moderator
Posts: 1339
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Dynamic Planet B/C

Postby windu34 » September 26th, 2015, 2:05 pm

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
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

liberalartslover
Member
Member
Posts: 26
Joined: April 25th, 2015, 1:18 am
Division: C
State: CA

Re: Dynamic Planet B/C

Postby liberalartslover » October 1st, 2015, 11:29 pm

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.

User avatar
windu34
Moderator
Moderator
Posts: 1339
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Dynamic Planet B/C

Postby windu34 » October 2nd, 2015, 8:17 am

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
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

brayden box
Member
Member
Posts: 90
Joined: September 21st, 2015, 7:43 am
Division: B
State: NY
Contact:

Re: Dynamic Planet B/C

Postby brayden box » October 7th, 2015, 9:51 am

windu34 wrote "ahh ok gotcha
you forgot a question.
BBOX

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » November 1st, 2015, 2:50 pm

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 :)

Code: Select all

[hide]Shown Text|Hidden Text[/hide]
Hidden Text

ampy1234567
Member
Member
Posts: 38
Joined: March 31st, 2015, 6:11 pm
Division: C
State: MN

Re: Dynamic Planet B/C

Postby ampy1234567 » December 29th, 2015, 9:20 pm

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?
Mounds View High School, 10th grade

2016 Nationals: Dynamic (2), Disease (6), Crave (8), Fossils (22)
2017 Nationals: Disease (1), Dynamic (2), Optics (5)

User avatar
windu34
Moderator
Moderator
Posts: 1339
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Dynamic Planet B/C

Postby windu34 » December 30th, 2015, 5:34 am

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?
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

ampy1234567
Member
Member
Posts: 38
Joined: March 31st, 2015, 6:11 pm
Division: C
State: MN

Re: Dynamic Planet B/C

Postby ampy1234567 » December 30th, 2015, 9:45 am

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?
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.
Mounds View High School, 10th grade

2016 Nationals: Dynamic (2), Disease (6), Crave (8), Fossils (22)
2017 Nationals: Disease (1), Dynamic (2), Optics (5)

User avatar
windu34
Moderator
Moderator
Posts: 1339
Joined: April 19th, 2015, 6:37 pm
Division: Grad
State: FL
Location: Gainesville, Florida

Re: Dynamic Planet B/C

Postby windu34 » December 30th, 2015, 6:21 pm

How does an arch form in a headland?
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

amydata123
Member
Member
Posts: 26
Joined: December 30th, 2015, 10:04 am
Division: B
State: FL

Re: Dynamic Planet B/C

Postby amydata123 » December 31st, 2015, 1:56 pm

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 :?: :?:
Last edited by amydata123 on December 31st, 2015, 2:11 pm, edited 1 time in total.
"The road to success comes through hard work, determination, and sacrifice"
- Dolzinski


Return to “2016 Question Marathons”

Who is online

Users browsing this forum: No registered users and 0 guests

cron