Table of Contents
- 1 What are the three looping patterns of air flow in each hemisphere called?
- 2 Which of the following is not an air pattern on the earth?
- 3 What are the 3 types of atmospheric circulation cells called?
- 4 Which statement describes the general pattern of winds near the equator?
- 5 Which factor causes global wind patterns?
- 6 Why is there always a breeze at the beach?
- 7 What is the flow volume loop in pulmonary function testing?
- 8 What causes flattening of the flow volume loop during inspiration?
What are the three looping patterns of air flow in each hemisphere called?
Each hemisphere contains three looping patterns of flow called convection cells. surface, called a wind belt, that is characterized by winds that flow in one direction. These winds are called prevailing winds. Like all winds, trade winds are named according to the direction from which they flow.
In what pattern does air near Earth’s surface generally flow?
In what pattern does air near Earth’s surface generally flow? From the poles to the equator. Where do high pressure regions form? When warm air rises away from Earth’s surface.
Which of the following is not an air pattern on the earth?
Air that rose just north of the equator flows north. Air that rose just south of the equator flows south. When the air cools, it drops back to the ground, flows back towards the Equator, and warm again. The, now, warmed air rises again, and the pattern repeats.
What kind of wind blows cool air from water to land?
A sea breeze or onshore breeze is any wind that blows from a large body of water toward or onto a landmass; it develops due to differences in air pressure created by the differing heat capacities of water and dry land. As such, sea breezes are more localised than prevailing winds.
What are the 3 types of atmospheric circulation cells called?
The global circulation In each hemisphere there are three cells (Hadley cell, Ferrel cell and Polar cell) in which air circulates through the entire depth of the troposphere.
What are Hadley and Ferrel cells?
Hadley cells, Ferrel (mid-latitude) cells, and Polar cells characterize current atmospheric dynamics. Hadley Cells are the low-latitude overturning circulations that have air rising at the equator and air sinking at roughly 30° latitude. First, the Hadley Cell circulation is constant.
Which statement describes the general pattern of winds near the equator?
Which statement describes the general pattern of winds near the equator? Winds are generally weak because the equator is a region of mostly low air pressure. The wind in a certain area is blowing from east to west.
What blows exclusively in one direction throughout the year?
Ch. 13 climate vocabulary
| A | B |
|---|---|
| prevailing winds | winds that blow predominantly in one direction throughout the year |
| trade winds | A wind blowing steadily toward the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea. |
Which factor causes global wind patterns?
Global Winds The Earth has consistent wind patterns when looked at from a global scale. Global winds are created by both the spin of the Earth (Coriolis effect) and the differences in temperature between the equator and the polar areas. These winds are often grouped together as trade winds, easterlies, and westerlies.
What are the three convection cells?
The wind belts and the jet streams girdling the planet are steered by three convection cells: the Hadley cell, the Ferrel cell, and the Polar cell. While the Hadley, Ferrel, and Polar cells are major players in global heat transport, they do not act alone.
Why is there always a breeze at the beach?
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air. This is the sea breeze and can be seen at the top of the following image.
What causes a breeze?
Breezes are the result of differences in air temperature. Warm air rises, leaving behind low pressure near the ground. Cold air creates high pressure and sinks to compensate; wind then blows from areas of high pressure to areas of low pressure to try to equalize pressures.
What is the flow volume loop in pulmonary function testing?
Obtaining a flow volume loop in the pulmonary function laboratory is a simple and effective method of noninvasively evaluating a patient for the presence of an upper airway obstruction. Fixed lesions cause plateaus in both the inspiratory and expiratory limbs of the flow volume loop.
What is the purpose of the contour of a flow-volume loop?
The contour of a flow-volume loop is a useful and often critical component in the interpretation process. It is also useful in assessing test quality. A flow-volume loop can sometimes be diagnostic by itself but it is most often useful as a way to confirm or fine-tune a diagnosis that is evident from the numerical results.
What causes flattening of the flow volume loop during inspiration?
During inspiration the obstruction is sucked into the trachea with partial obstruction and flattening of the inspiratory part of the flow-volume loop. This is seen in cases of vocal cord paralysis, extrathoracic goiter and laryngeal tumors.
What is the difference between The spirogram and the flow-volume loop?
In contrast to the spirogram, which displays airflow (in L) over time (in sec), the flow-volume loop (see Figure: Flow-volume loops ) displays airflow (in L/second) as it relates to lung volume (in L) during maximal inspiration from complete exhalation (residual volume [RV]) and during maximum expiration from complete inhalation (TLC).