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LAB QUIZ
LAB QUIZ
30
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Kindergarten
07/06/2011

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Cards

Term
CAPE: convective available potential energy
Definition
represents the amount of buoyant energy available to accelerate a parcel vertically, or the amount of work a parcel does on the environment
Term
LI: lifted index
Definition
commonly utilized measure of stability which measures the difference between a lifted parcel's temp at 500 mb and the environmental temp at 500 mb
Term
SWEAT: severe weather threat index
Definition
evaluates the potential for severe weather by combining several parameters into one index
Term
TT: total totals index
Definition
accounts for both static stability and 850 mb moisture
Term
hurricane becomes a hurricane at what mph?
Definition
74
Term
when does a hurricane become intense?
Definition
category 3 or highers
Term
what scale is used to measure hurricane category and by what?
Definition
saffir-simpson scale and it is based on wind speeds
Term
what three things are used in a longwave forecast?
Definition
sea surface temp
surface map
upper-level maps
Term
why is sea surface temps important
Definition
the warmer the ocean the better the conditions are for producing a strong hurricane
Term
how are surface maps used?
Definition
they help determine the path of the hurricane
Term
why are upper level maps used?
Definition
help determine the storms path and intensity
Term
is wind shear good or bad for hurricanes?
Definition
BAD
Term
is La Nina good or bad for hurricanes?
Definition
GOOD!
Term
QBO
Definition
measures the east west component of the wind at the 50 mb level - positive strong winds are bad and negative weak winds are good for hurricanes
Term
what is the current level of CO2?
Definition
a little over 380ppm
Term
how much has the sea level risen in the last century?
Definition
6.7 inches
Term
in the last 650,000 years there have been seven cycles of glacial advance and retreat. Why is the current warming trend of particular significance?
Definition
most of it is very likely human induced and proceeding at a rate that is unprecedented in the past 1300 years
Term
what is the greenhouse effect?
Definition
warming that results when the atmosphere traps heat radiating from earth toward space
Term
what is the most abundant greenhouse gas?
Definition
water vapor
Term
climate forcing
Definition
initial drivers of a climate shift - solar irradiance is a examples
Term
positive feedback
Definition
increases an initial warming
Term
negative feedback
Definition
reduces an initial warming
Term
Nasa says that ______ are causing the Earth's waistline to spread
Definition
melting glaciers
Term
when the Earth was formed 4.6 billion years ago, how long was a day?
Definition
6 hours
Term
why is the earths rotation slowing down
Definition
the moon is slowing down earths rotation thru the tides that it creates
Term
what is snowball earth theory?
Definition
is when scientists believe that the earth nearly or completely froze several times
Term
850 mb
Definition
Term
NHC
Definition
National Hurricane Center
Term
SPC
Definition
Storm Prediction Center
Term
National Severe Storms Lab
Definition
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