Term
| Which of the following gases weighs the LEAST? |
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Definition
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Term
| Which of the following atmospheric gases is the MOST abundant in the atmosphere? |
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Definition
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Term
| Which of the following atmospheric gases is the MOST variable from place to place in the atmosphere? |
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Definition
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Term
| Which of the following atmospheric gases is necessary to form Earth’s ozone layer? |
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Definition
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Term
| Which of the following air masses would have the LOWEST density? |
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Definition
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Term
| What is the cause of seasons on Earth? |
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Definition
| no changes in the tilt of Earth’s axis produces variations in heating |
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Term
| Which of the following provides the energy for All storm development? |
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Definition
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Term
| Which of the following describes atmospheric conditions around low pressure areas? |
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Definition
| rising air, condensation, and clouds |
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Term
| At what latitude would you generally expect to find the driest conditions on Earth? |
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Definition
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Term
| The boundary in the atmosphere along which we would find a strong winter jet stream is... |
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Definition
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Term
| In the northern hemisphere low pressure systems rotate_________ and high pressure areas_____ |
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Definition
| counterclockwise, clockwise |
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Term
| Which of the following occur along the polar front? |
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Definition
A) a strong winter jet stream
B) convergence between subtropical and polar air masses
C) hybrid or polar cyclones
answer= all of the above except D |
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Term
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Definition
| to the west and toward the equator |
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Term
| The temperature at which an air mass attains 100% relative humidity is called ___________. |
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Definition
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Term
| What approximate percentage of the Earth's surface is covered by water? |
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Definition
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Term
| What is the current tilt of Earth’s rotation axis? (in degrees from normal) |
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Definition
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Term
| The tendency for moving air masses to curve and rotate is called the Coriolis effect and is caused by…… |
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Definition
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Term
| Which of the following provides the energy for ALL storm development? |
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Definition
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Term
| Which winds will collide to form a polar front storm? |
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Definition
| ) polar “cold” easterlies and subtropical “warm” westerlies |
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Term
| The Sun produces well know variations related to the sunspot cycle which has an average period of…. |
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Definition
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Term
| Which of the following would produce a narrow line of intense precipitation? (line of T-storms) |
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Definition
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Term
| Deep ocean currents originate |
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Definition
| as water sinks in polar oceans |
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Term
| Surface ocean currents originate |
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Definition
| by wind blowing over the ocean |
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Term
| How would a large explosive volcanic eruption change climate on Earth? |
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Definition
| it would get cooler and drier |
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Term
| On which side of an ocean basin (not a continent) will the most hurricanes form? |
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Definition
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Term
| El Ninos are short term climate changes related to... |
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Definition
| changes in surface ocean currents |
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Term
| Which of the following can occur along the polar front? |
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Definition
| a strong winter jet stream, hyprid and polar cyclones, the largest storm systems on earth. answer = all of the above |
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Term
| What came together to form the “Storm of the Century”? |
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Definition
A) very cold air and warm humid air
B) a strong cold core low pressure and a tropical disturbance
C) water vapor and a source of lift
D) the subtropical, pacific and polar jet streams
E) all the above = answer |
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Term
| What was common to both the “Perfect Storm” and the “Storm of the Century”? |
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Definition
| they were both transitional season storms |
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Term
| What conditions would favor the formation of a strong hybrid or frontal cyclone? |
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Definition
A) strong jet stream winds
B) contrasting air masses
C) water vapor rich air
D) strong low pressure
E) all the above |
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Term
| The worst flash flood in U. S. history was a thunderstorm related to.... |
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Definition
| a stationary mountain front T-storm |
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Term
| Most thunderstorms in the U.S. are the result of collision of cooler Canadian air with........ |
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Definition
| a gulf of mexico air mass |
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Term
| What thunderstorm hazard kills the most people consistently year after year? |
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Definition
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Term
| What describes the difference between air mass thunderstorms and super cell thunderstorms? |
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Definition
A) super cell T-storms have separate areas of updrafts and downdrafts
B) super cells have much more drastic changes in wind speed and direction
C) super cells are more likely to generate tornadoes
D) super cell T-storms get bigger and last longer
E) all of the above describe difference between air mass and super cell T-storms |
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Term
| Estimating the distance to a thunderstorm can be done by assuming that.... |
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Definition
| each 5 seconds of time between the flash and the thunder equals 1 mile |
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Term
| . IF the temperature at the surface is 24º C ........what would be the freezing altitude level on an average day? |
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Definition
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Term
| Thunder is caused by........ |
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Definition
| rapid thermal expansion of air molecules |
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Term
| IF a pilot and wanted to see areas of potential wind shear it would be best to have data supplied by... |
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Definition
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Term
| Which of the following best describes gaseous H20? (water vapor molecules) |
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Definition
| individual un bounded water molecules |
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Term
| Where is the well developed ozone layer located? |
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Definition
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Term
| In what layer would you find the coldest temperatures in the atmosphere? |
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Definition
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Term
| Which of the following types of lightning would be the most common? |
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Definition
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Term
| How hot (temperature) does a bolt of lightning make the air around it? |
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Definition
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Term
| The base of thunderstorm cloud would be defined by this level in the atmosphere. |
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Definition
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Term
| What is true about the 1993 “storm of the century”? |
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Definition
| it was a powerful hybrid cyclone that hit most everyone across the eastern U.S. unexpectedly hard |
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Term
| Which of the following travel directions is not likely for frontal or hybrid cyclones? |
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Definition
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Term
| Ocean waves, or surf, that hits SD beaches everyday forms by.... |
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Definition
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Term
| Which of the following would have the least effect on the size of ocean waves? |
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Definition
| the temperature of the water |
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