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OCG Chapter 1
Terms in this set (39)
Our ocean provides what percent of the air we breath?
What percent of the Earth is covered by water?
What drives surface currents E-to-W near the equator
Mid Latitude currents
What flows W-to-E and return water to the tropics, forming circular ocean currents (gyres).
The Gulf Stream
Carries warm water up the eastern coast of the U.S. and Canada and on to western Europe.
The Kuroshio Current (Known as Black or Japan Current)
What brings warm water northwards on the west side of the Pacific Ocean.
The Coriolis Effect (Force)
What named after French mathematician and physicist Gaspard-Gustave de Coriolis. It explains the motion due to the inertial of the object in a rotating system
The Coriolis effect moves the current to the BLANK on the northern hemisphere and BLANK on the southern hemisphere
What is supplied to the polar regions influences the rate of sea ice formation, which in turn affects other aspects of the climate system (e.g., albedo and solar heating)
Through what circulation, heat (and everything else in the water) is transported to all levels of the ocean, affecting ocean ecosystems far and wide
Large-scale wind patterns
What drives the major surface currents of the ocean?
As the tide rises, water moves toward the shore.
As the tide recedes, the waters move away from the shore.
Diurnal tide cycle
What cycle has one high and one low tide every lunar day (~24 hours and 50 minutes). Example: the Gulf of Mexico.
Semidiurnal tide cycle
What cycle has two high and two low tides of approximately equal size every lunar day. Example: The eastern coast of North America.
Mixed Semidiurnal tide cycle
What cycle has two high and two low tides of different size every lunar day. Example: The western coast of North America.
A spring tide ("King Tide")
What tide refers to the 'springing forth' of the tide during new and full moon, when the alignment of the sun and moon generates the highest and lowest tides.
A neap tide
What occurs seven days after a spring tide—refers to a period of moderate tides when the sun and moon are at right angles to each other.
What is a portion of the continent submerged under shallow sea water.
The continental slope
The sea floor below the break is what?
The continental rise
What is below the slope?
Active Continental Margin
What are these describing?
Oceanic plate subduct beneath the continent
Often associated with abundant earthquakes and volcanic activities
Little to no continental shelf
Erosional landforms and Depositional landforms
Two types of Coastal landforms
Which of these features is NOT considered erosional?
Which of these features is NOT considered depositional?
The state or fact of being organized in a tribe or tribes.
The behaviors and attitudes that stem from strong loyalty to one's own tribe or social group.
Yes, younger generation should be taught to not follow others, but instead have their own opinion about all matter. If people stop following groups or "tribes" that they want to belong to better discussions will be generated and more problems can be solved efficiently.
Is environmental tribalism a problem that hinders open and substantive discussion about climate change in the U.S.?
Amount of energy received by the sun,
Reflection vs absorption of sun's energy (albedo)
The amount of energy retained by the earth's atmosphere
What controls the Earth's temperature?
Sunspots and solar flares - reflect magnetic activity of the sun, and sun's brightness.
Approximately an 11 year cycle
Solar irradiance: (Solar cycles)
Lighter things reflect more light energy
Darker things absorb more light energy (heat)
Noxs (Nitrogen oxides)
Name the 5 Greenhouse gases:
Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat (infrared radiation). As the heat makes its way through the atmosphere and back out to space, greenhouse gases absorb much of it.
How Does the greenhouse gases work?
Must be able to absorb heat
Must be made of more than 3 atoms and vibrate when heat is absorbed
When vibrate heat will be produced and then be absorbed by ANOTHER greenhouse gas
What makes a greenhouse gas?
Local Sea Level
The height of the water as measured along the coast relative to a specific point on land (e.g., as measured at a tidal station)
Global Sea Level
The average height of all the Earth's oceans.
Measures the tidal range/sea level
What can now measure elevation? (deep ocean couldn't be measured until about 25 years ago)
An irregularly occurring climatic changes, characterized by a weakened trade wind and the appearance of unusually warm ocean water in the central and east-central equatorial Pacific.
The sea level is lower
What do you expect to see in the measured sea level at a tidal station in the western tropic Pacific during an El Nino event?
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