question:
1. The Coriolis Effect Defined: What in the World is it?
The Coriolis Effect is defined as air masses that change direction to the right in the northern hemisphere and changes to the left in the southern hemisphere (this also happens in the water).
2.Warm Air Rises and Cold Air Falls- Why?
Warm air expands, becomes less dense, and rises. While cool air cools, contracts, becomes less dense, and falls.
3.What is the general pattern of wind currents on the globe?
The general pattern of wind currents on the globe is that surface temperatures are higher at the equator (than the poles). Air heats in the tropics, expands, becomes less dense, and then rises to the poles. In the poles the air cools, contracts by spreading into space, sinks to the surface, and come back to the tropics.
4.What is a convection current?
The convention current is when warm air expands, becomes less dense. From the there the air cools, contracts, becomes denser, and falls.
5.Global circulation is driven by which two processes?
Global circulation is driven by two processes which is uneven solar heating and the rotation of the earth.
Notes:
Coriolis Effect: Since Earth is a globe rotational speed is faster at the equator and is slow at the poles (north/south). The land that is under the air masses that leaves the air poles seem to increase it's speed as it goes towards the equator.
Warm air expands, becomes less dense, and rises. While cool air cools, contracts, becomes less dense, and falls.
Global Circulation: The eastward of the earth on it's axis combines with the warming and cooling masses make it go the opposite of the moving air and water bodies. Global circulation is driven by two processes which is uneven solar heating and the rotation of the earth.
The Coriolis Effect causes the circulation cells in the northern hemisphere surface wind which is deflected towards the right clockwise. The southern hemisphere surface winds are deflected to the left clockwise. Wind direction dictates the speed and direction of the surface's current in the ocean.
Density: Temperature and water has great influences on density. Humid air is < dense than dry air. Warm air is < dense than cool air.
Pressure: At Earth's surface the air molecules are tightly packed together. When sit masses rise they become less dense, expands, and becomes cool. Cooler air masses hold less water than warm air. When air masses fall, they become compressed and heat up.
Putting it All Together: Air circulation varies from season to season. Air rises to equator and falls at the poles. There are three circuits in each hemisphere referred as cells. There are three cells are called Polar cells, Ferrel cells, and Hadley cells.
Define and explain:
Hadley Cells: This is when air rises at the equator, loses moisture by rainfall caused by expanding and cooling. When it has traveled 30 degrees north and 30 degrees south in latitude, the air becomes dense enough so it falls to the surface. The Coriolis Effect deflects this surface air to the right, with the air blowing across the surface creating the Easterly trades.
Ferrel Cells: These mid-circulation cells form a loop between 30 and 50-60 degree latitude. Air is driven by uneven heating and persuaded by the Coriolis Effect. The surface wind is deflected to the right forming the Westerly Winds.
Polar Cells: Air that is cold at the poles that is being blown towards the equator at the surface and turns to the west. When each hemisphere is between 50-60 degrees latitude, and then it has taken enough heat and moisture to ascend. Then the air turns to poleward to a complete full circuit called the Polar Cells.
Horse Latitudes: This area of high atmospheric pressure with little surface wind (the subtropical high). Which are some dry bands centered around the 30 degree mark Hadley and Ferrel cells as intersection mark.
Doldrums: A special term created by the sailors for the calm equatorial areas where two Hadley surface winds converge.
The Coriolis Effect is defined as air masses that change direction to the right in the northern hemisphere and changes to the left in the southern hemisphere (this also happens in the water).
2.Warm Air Rises and Cold Air Falls- Why?
Warm air expands, becomes less dense, and rises. While cool air cools, contracts, becomes less dense, and falls.
3.What is the general pattern of wind currents on the globe?
The general pattern of wind currents on the globe is that surface temperatures are higher at the equator (than the poles). Air heats in the tropics, expands, becomes less dense, and then rises to the poles. In the poles the air cools, contracts by spreading into space, sinks to the surface, and come back to the tropics.
4.What is a convection current?
The convention current is when warm air expands, becomes less dense. From the there the air cools, contracts, becomes denser, and falls.
5.Global circulation is driven by which two processes?
Global circulation is driven by two processes which is uneven solar heating and the rotation of the earth.
Notes:
Coriolis Effect: Since Earth is a globe rotational speed is faster at the equator and is slow at the poles (north/south). The land that is under the air masses that leaves the air poles seem to increase it's speed as it goes towards the equator.
Warm air expands, becomes less dense, and rises. While cool air cools, contracts, becomes less dense, and falls.
Global Circulation: The eastward of the earth on it's axis combines with the warming and cooling masses make it go the opposite of the moving air and water bodies. Global circulation is driven by two processes which is uneven solar heating and the rotation of the earth.
The Coriolis Effect causes the circulation cells in the northern hemisphere surface wind which is deflected towards the right clockwise. The southern hemisphere surface winds are deflected to the left clockwise. Wind direction dictates the speed and direction of the surface's current in the ocean.
Density: Temperature and water has great influences on density. Humid air is < dense than dry air. Warm air is < dense than cool air.
Pressure: At Earth's surface the air molecules are tightly packed together. When sit masses rise they become less dense, expands, and becomes cool. Cooler air masses hold less water than warm air. When air masses fall, they become compressed and heat up.
Putting it All Together: Air circulation varies from season to season. Air rises to equator and falls at the poles. There are three circuits in each hemisphere referred as cells. There are three cells are called Polar cells, Ferrel cells, and Hadley cells.
Define and explain:
Hadley Cells: This is when air rises at the equator, loses moisture by rainfall caused by expanding and cooling. When it has traveled 30 degrees north and 30 degrees south in latitude, the air becomes dense enough so it falls to the surface. The Coriolis Effect deflects this surface air to the right, with the air blowing across the surface creating the Easterly trades.
Ferrel Cells: These mid-circulation cells form a loop between 30 and 50-60 degree latitude. Air is driven by uneven heating and persuaded by the Coriolis Effect. The surface wind is deflected to the right forming the Westerly Winds.
Polar Cells: Air that is cold at the poles that is being blown towards the equator at the surface and turns to the west. When each hemisphere is between 50-60 degrees latitude, and then it has taken enough heat and moisture to ascend. Then the air turns to poleward to a complete full circuit called the Polar Cells.
Horse Latitudes: This area of high atmospheric pressure with little surface wind (the subtropical high). Which are some dry bands centered around the 30 degree mark Hadley and Ferrel cells as intersection mark.
Doldrums: A special term created by the sailors for the calm equatorial areas where two Hadley surface winds converge.
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