Unit 3: The Ocean
APES Period 4
Ocean StructureDifferent layers of the ocean and what’s in them.
Ocean CurrentsThe water flow patterns around the ocean.
Thermohaline CirculationOne of the largest and most important currents in the ocean.
Ocean Circulation and Climate CyclesHow the ocean changes and how it affects us.
Biological Activity in the Upper Ocean PartAnimal and plant life the upper layers of the ocean.
The "Biological Pump"The transportation of carbon in the ocean
Ocean Structure
Katrina Moore
Ocean Currents Part 2
Cierra Bordwine
Thermohaline Circulation Part 1

Karis Heidebrecht
What is Thermohaline Circulation?

The thermohaline circulation is the flow of
ocean water caused by changes of its density.
It is one of the major forces that affects climate.
How Is a Thermohaline Current
Formed?
● Water becomes denser the saltier it gets and
the cooler it gets.
● This can occur as the ocean is warmed or
cooled at the surface by sunlight and contact
with the atmosphere, or by the addition of
freshwater or salt to the water.
Continued...
● Since water is warmer near the equator and
cooler near the poles, the cold water sinks and
the warm water floats. Water is also saltier near
the equator due to evaporation, which leaves salt
behind. The process of warming, cooling, and
changing salt levels propels water in currents,
causing thermohaline circulation.
● This process, plus others, fuels the multiple
Thermohaline currents that are found around the
world. The result is the Thermohaline circulation.
Thermohaline Circulation Part 2
Maribeth Villanueva
Salty Water.
Masses that help the CirculationNorth Atlantic Deep Water
● (NADW)
● Biggest Water Mass
● Helps pull Gulf
Stream were North
Atlantic Steam ends.
Masses that help the CirculationAntarctic Bottom Water
● (AABW)
● Coldest & Densest
● Carries nutrients
● Northwards
Ocean Circulation and Climate
Cycles Part 1
Geoffrey Ashton
Ocean Circulation and Climate
Cycles Part 2
McKenna Chase
Compensation
Compensation depth - The
depth at which energy
produced for photosynthesis
equals the amount used for
respiration. It varies from 20 110 meters and occurs when
light is 1% of what it is at the
ocean's surface.
Compensation Zone - Where
there is just enough light for
photosynthetic life.
Biological Activity in the Upper
Ocean Part 2
Victoria Owen
Further Reading
National Academy of Sciences El Nino and La
Nina: Tracing the Dance of an Ocean and
Atmosphere.
National Weather Service Climate Prediction
Center: https://vimeo.com/76557382
Woods Hole Oceanographic Institute: Ocean
Instruments like Tow Cam
TowCam is a specially designed digital
camera system that photographs the
seafloor as it is towed above the
ocean bottom behind an
oceanographic research vessel. A
regular underwater camera would not
work in such an extreme environment,
where it must take pictures in total
blackness, crushing pressure, and
freezing temperatures.
Key Terms
Michaela Brost

Unit 3 The Ocean

  • 1.
    Unit 3: TheOcean APES Period 4
  • 3.
    Ocean StructureDifferent layersof the ocean and what’s in them. Ocean CurrentsThe water flow patterns around the ocean. Thermohaline CirculationOne of the largest and most important currents in the ocean. Ocean Circulation and Climate CyclesHow the ocean changes and how it affects us. Biological Activity in the Upper Ocean PartAnimal and plant life the upper layers of the ocean. The "Biological Pump"The transportation of carbon in the ocean
  • 4.
  • 14.
    Ocean Currents Part2 Cierra Bordwine
  • 19.
    Thermohaline Circulation Part1 Karis Heidebrecht
  • 20.
    What is ThermohalineCirculation? The thermohaline circulation is the flow of ocean water caused by changes of its density. It is one of the major forces that affects climate.
  • 21.
    How Is aThermohaline Current Formed? ● Water becomes denser the saltier it gets and the cooler it gets. ● This can occur as the ocean is warmed or cooled at the surface by sunlight and contact with the atmosphere, or by the addition of freshwater or salt to the water.
  • 22.
    Continued... ● Since wateris warmer near the equator and cooler near the poles, the cold water sinks and the warm water floats. Water is also saltier near the equator due to evaporation, which leaves salt behind. The process of warming, cooling, and changing salt levels propels water in currents, causing thermohaline circulation. ● This process, plus others, fuels the multiple Thermohaline currents that are found around the world. The result is the Thermohaline circulation.
  • 23.
    Thermohaline Circulation Part2 Maribeth Villanueva
  • 24.
  • 25.
    Masses that helpthe CirculationNorth Atlantic Deep Water ● (NADW) ● Biggest Water Mass ● Helps pull Gulf Stream were North Atlantic Steam ends.
  • 26.
    Masses that helpthe CirculationAntarctic Bottom Water ● (AABW) ● Coldest & Densest ● Carries nutrients ● Northwards
  • 27.
    Ocean Circulation andClimate Cycles Part 1 Geoffrey Ashton
  • 33.
    Ocean Circulation andClimate Cycles Part 2 McKenna Chase
  • 40.
    Compensation Compensation depth -The depth at which energy produced for photosynthesis equals the amount used for respiration. It varies from 20 110 meters and occurs when light is 1% of what it is at the ocean's surface. Compensation Zone - Where there is just enough light for photosynthetic life.
  • 42.
    Biological Activity inthe Upper Ocean Part 2 Victoria Owen
  • 52.
    Further Reading National Academyof Sciences El Nino and La Nina: Tracing the Dance of an Ocean and Atmosphere. National Weather Service Climate Prediction Center: https://vimeo.com/76557382 Woods Hole Oceanographic Institute: Ocean Instruments like Tow Cam
  • 54.
    TowCam is aspecially designed digital camera system that photographs the seafloor as it is towed above the ocean bottom behind an oceanographic research vessel. A regular underwater camera would not work in such an extreme environment, where it must take pictures in total blackness, crushing pressure, and freezing temperatures.
  • 55.