EAPS 105|61 Exam III Study Guide With Answers|9 Pages
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Course
EAPS 105
Institution
EAPS 105
What provides the energy for hurricanes and what happens when they venture over land? - ️️Tropical cyclones get their energy from warm tropical waters. When hurricanes venture over land they lose their energy source, causing their winds to diminish rapidly.
-With sustained winds of 196 mph (gu...
What provides the energy for hurricanes and what happens when they venture
over land? - ✔ ✔ Tropical cyclones get their energy from warm tropical
waters. When hurricanes venture over land they lose their energy source, causing
their winds to diminish rapidly.
-With sustained winds of 196 mph (gusts up to 235 mph), Typhoon Haiyan (2013)
was the strongest cyclone ever to make landfall (hit the Philippines at full
strength)
-Longest lasting and farthest traveling: Hurricane and Typhoon John, 1994; this
cyclone lasted 31 days and covered 8,000 miles moving from a hurricane region to
a typhoon region and back
Which is heavier: dry air of moist air? - ✔ ✔ Dry air is heavier than moist air
(cold air is heavier than warm air)
Which way does the wind blow near a tornado? - ✔ ✔ Near the ground winds
blow toward a tornado, feeding the strong updraft. Wind blows outward from a
tornado about 100 feet above the ground
Why can't cyclones form on the equator? - ✔ ✔ Without rotation induced by
the Coriolis effect, groups of thunderstorms cannot organize themselves into a
cyclone. The Coriolis effect disappears at the equator so cyclones cannot form
here
Why is hail often found in front of a tornado? - ✔ ✔ Hail occurs in front of a
tornado due to a downdraft
What were the major components of the 1991 Perfect Storm? - ✔ ✔ Cold
front, Nor'easter, Hurricane Grace
, What would Earth be like if there were no greenhouse gases? - ✔ ✔
Greenhouse gases are required for the warm temperate climate that has
allowed life to flourish on Earth.
-With greenhouse gases the average temperature on Earth is 61 degrees F
-Without greenhouse gases the Earth would average only 0 degrees F and
become completely ice covered
Where should you take shelter from a tornado in various situations and what is
the biggest danger from tornadoes? - ✔ ✔ If outdoors, get indoors. If indoors,
go to the basement, if no basement, go to a small ground floor interior room
without windows. If in a car and you see a tornado, drive away at right angles to
the direction the tornado is traveling, but if stuck in traffic and no obvious shelter,
get to a low spot (ditch or culvert) and lie down to avoid flying debris. Do not hide
under an overpass.
Can the fixed Doppler radar easily measure tornado wind speeds? - ✔ ✔
Tornado wind speeds are very difficult to measure. Fixed doppler radar can only
measure wind speeds a few km above the ground; sufficient for supercells, but
not tornadoes
Can tornadoes contain multiple vortices? - ✔ ✔ Tornadoes cannot split or join
as this would disrupt the wind flow and destroy both, but multiple vortices are
common, with each rotating about a larger tornadic center
What areas have legitimate debate/uncertainty in existance regarding climate
change? - ✔ ✔ 1. How should we balance environmental and economic
concerns?: climate change is already costing our economy
2. How much will the Earth heat up?
3. What are the best strategies to fight global warming?
What causes lightning, thunder, and hail? - ✔ ✔ Lightening is a sudden
electrostatic discharge between oppositely charged regions of a cloud or between
a cloud and the ground
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