« previous next »

Author Question: Contrast density variations with depth in the high and low latitudes. Why do high-latitude waters ... (Read 83 times)

dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
on: Jul 14, 2018
Contrast density variations with depth in the high and low latitudes. Why do high-latitude waters generally lack a pycnocline?
 
  What will be an ideal response?

Question 2

What two factors influence seawater density? Which one has the greater influence on surface seawater density?
 
  What will be an ideal response?


aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 14, 2018
Answer to Question 1

Tropical lower-latitude surface waters are lower density than high-latitude surface waters. As you go deeper in the water column, density increases, so there is a pycnocline in low-latitude waters, while high-latitude deep water is only marginally denser than the water at surface, so there is no pycnocline.

Answer to Question 2

Density is influenced by temperature and salinity. Temperature has the greatest influence on surface seawater density because variations in surface seawater temperature are greater than salinity variations.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Shark in shallow waters Shark in shallow waters
a) Avoid placing the face cradle too high because it hyperextends and strains the neck. b) When the ... a) Avoid placing the face cradle too high because it hyperextends and strains the neck. b) When the ...
The level of emissions from transport in the United States is twice as high as the global average The level of emissions from transport in the United States is twice as high as the global average
Population Density versus Economic Growth Population Density versus Economic Growth
Nursing Care Plan Process: Client with High Blood Lipid Levels Nursing Care Plan Process: Client with High Blood Lipid Levels
Variations in patient response to drugs Variations in patient response to drugs
Video: Enzyme structure - Properties of enzymes

For a complete list of videos, visit our video library