You can't view this content – Adobe Flash was not detected or is too old!
Please click the "Get Adobe Flash Player" link below so you can see this content. If you are still seeing this message, please contact customer support.| Name: | Atmospheres |
| Description: | final |
| # Cards: | 42 |
| Q1: | How far inland does lake effect extend? |
| A1: | 50 miles |
| Q2: | How does wind speed change when air flows over a lake? |
| A2: | It speeds up because of decreased friction |
| Q3: | How deep are typical clouds that produce lake-effect snow? |
| A3: | 2-3 km |
| Q4: | What effect does the freezing of a lake have on lake effect snow development? |
| A4: | It makes lake effect snow less likely because it decreases moisture and heat transport to the atmosphere |
| Q5: | Whya re lake effect snow events more likely in dec/jan than when the water is warmer in oct/nov? |
| A5: | lake temperatures aren't the most contribuitng factor to formation, the lake-air temperature difference is typically the largest during dec/jan, extratrpical cyclones bring northwest winds are more frequent in dec/jan |
| Q6: | Which of the following situations is most likely to lead to a lake effect snowstorm? |
| A6: | 10 degree water -10 degree air temperature- biggest temperature difference >15 degree difference |
| Q7: | Wind parallel rows are more likely when winds are ____ and blow parallel winds along the ___axis of the lake? |
| A7: | fast, short |
| Q8: | Shore parallel bands form when winds are ___and blow parallel winds along the ____axis? |
| A8: | weak, long |
| Q9: | Why do winds from the south rarely produce lake-effect snowstorms when they occur during winter? |
| A9: | the lake-air temperature difference isn't large enough to destabilize the air |
| Q10: | Larger lakes are more likely to produce lake effect snowstorms than smaller lakes with same conditions. T or F |
| A10: | True |
| Q11: | Primary energy source for hurricanes is? |
| A11: | Latent heat release |
| Q12: | What are requirements for the formation of hurricanes? |
| A12: | surface layer of warm ocean water > 60 meters deep ocean, temperature >80 degreees f, weak vertical wind shear |
| Q13: | How strong do sustained windspeeds need to be for a tropical storm to be classified as a hurricane? |
| A13: | 74 mph |
| Q14: | Which oceanic region has the highest frequency of hurricanes? |
| A14: | WEstern Pacific Ocean |
| Q15: | Why is the eye of a hurricane typically cloud free? |
| A15: | The air is descending in the eye |
| Q16: | The most dangerous part of a hurricane is ____ |
| A16: | the storm surge |
| Q17: | – |
| A17: | – |
| Q18: | The atlantic hurricane season extends from ____ |
| A18: | june through November |
| Q19: | The strongest winds and precipitation in a hurricane are found in the spiral rainbands. T or F |
| A19: | false |
| Q20: | Why do hurricanes typically travel east to west in the tropics? |
| A20: | That is the direction that the trade winds blow |
| Q21: | Which category of hurricane is the most common? |
| A21: | CAT 1 |
| Q22: | What is a hurricane |
| A22: | an organized tropical storm, form over tropical oceans, last about 1 week, max sustained winds between 75 and 175 mph |
| Q23: | How do hurricanes transport energy? |
| A23: | transferred from warm ocean water to the atmosphere, when condensations occurs in a cloud the heat is released called latent heating |
| Q24: | How are Hurricanes measured? |
| A24: | reconnaissance aircraft, ships and bouys, ASOS, radiosondes satellite imagery, doppler radar |
| Q25: | Factors to a category 1 to 5 hurricane |
| A25: | lower pressure mb, higher wind speeds, bigger storm surge |
| Q26: | what is the eyewall? |
| A26: | surrounding the eye composed of DENSE clouds that contain the HIGHEST winds in the storm. |
| Q27: | Ingredients for hurricane formation |
| A27: | warm ocean temperature and a depth of 45 m, pre existing disturbance with thunderstorms, light upper level winds-low wind shear |
| Q28: | what is a downburst? |
| A28: | a strong downdraft that originates within the lower part of a cumulus cloud or thuderstor that descendes to the ground. does not require a strong thunderstorm, generates strong staightline surface winds up to 100 mph |
| Q29: | What is lightning? |
| A29: | a static electric discharge between -cloud to ground cloud to cloud intercloud regions transfers 15,000 to 30,000 amps of current and requires an electric field of 1-3 million volts/meter |
| Q30: | what makes the light and noise-thunder and lightning |
| A30: | The light flash is associated with the flow of electrons along whatever path has the least resistance to that flow The air molecules are excited to high temperature as a result of the electron flow Current is defined as the direction opposite to the flow of electrons Since there is an enormous amount of current in a lightning strike, there is also an enormous amount of heat A bolt of lightning is as hot as the surface of the sun leading to visible light being generated As the air around the strike is heated it expands very rapidly. The rapid expansion causes sound waves to be generated called thunder. |
| Q31: | how is thunder produced? |
| A31: | Lightning heats the air to 30,000C causing the air to rapidly expand by about a factor of 100 Expanding air collides with molecules which creates a pressure wave that we perceive as thunder Thunder travels at the speed of sound (i.e., 1 mile every 5 seconds) |
| Q32: | good conducters and insulators |
| A32: | Air – very good insulator, very poor conductor Rubber – good insulator, poor conductor Metal – very poor insulator, very good conductor |
| Q33: | Polarized radar |
| A33: | can determine the presence of hairl by identifying hydrometeors that are not flattened like raindrops |
| Q34: | why do hailstones appear white? |
| A34: | air bubbles are trapped in the ice as the supercooled cloud droplets freeze on the surface |
| Q35: | the largthe largest monetary damage caused by hailstones is to |
| A35: | crops |
| Q36: | why is an overshooting top often a good sign that a thunderstorm contains hail/ |
| A36: | the cloud will have intense updrafts |
| Q37: | why is large hail relatively rare west of the rockies? |
| A37: | supercell thunderstorms are rare in the region |
| Q38: | what is the best way to identify hail in a thunderstorm? |
| A38: | use of polarization radar to measure the shape of falling precipitation |
| Q39: | large hailstones typically form |
| A39: | on the periphery of the rotating bounded weak echo region of a thunderstorm |
| Q40: | if you experience large hail during a thunderstorm the threat of a tornado has passed t or f |
| A40: | false |
| Q41: | why are hailstones layered? |
| A41: | they go through alternating periods of wet and dry growth |
| Q42: | – |
| A42: | – |
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