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Climate and Weather
Flash Cards for Ch 24 & 25
66
Science
9th Grade
11/20/2011

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Cards

Term
air mass
Definition
large unit of air in which temp and moisture content is similar; forms in different climates
cp, ct, mp, mt
Term
anticyclone
Definition
term applied to high pressure system
Term
cyclone
Definition
term applied to low pressure system
Term
maritime
Definition
moist
Term
polar
Definition
cold
Term
warm front
Definition
a front that advances in such a way that warmer air replaces colder air
Term
stationary front
Definition
a front of air mass that moves either very slowly or not at all
Term
hurricane
Definition
a severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center
Term
mid-latitude cyclone
Definition
large area storm system; an area of low pressure that is characterized by rotating wind that moves toward the rising air of the central low-pressure region
Term
continental
Definition
dry
Term
tropical
Definition
climates are the climates rain forest, desert and savanna
Term
cold front
Definition
the front edge of a moving mass of cold air, usually accompanied by heavy rain
Term
occluded front
Definition
Cold air lifts warm air completely off of the ground
Term
thunderstorm
Definition
Rain, lightening, cumulonimbus clouds
Term
typhoon
Definition
a hurricane formed in a different place
a severe tropical cyclone that forms on the western Pacific Ocean and on the China Seas; a hurricane
Term
tornado
Definition
a destructive, rotating column of air that has very high wind speeds and that may be visible as a funnel-shaped cloud
Term
anemometer
Definition
measures wind speed
Term
psychrometer
Definition
consists of two thermometers, one which is dry and one which is kept moist with distilled water on a sock or wick
Term
radiosonde
Definition
a package of instruments that is carried aloft by balloons to measure upper atmospheric conditions
Term
wind vane
Definition
wind direction
Term
weather report
Definition
a summary of weather conditions, often including predicted conditions, for an area.
Term
weather symbol
Definition
a map or chart showing weather conditions over a wide area at a particular time, compiled from simultaneous observations at different places.
Term
severe weather watch
Definition
implies that people should be alert for the possibility of severe weather
Term
severe weather warning
Definition
any dangerous meteorological phenomena with the potential to cause damage, serious social disruption, or loss
Term
barometer
Definition
an instrument measures atmospheric pressure
Term
radar
Definition
a system that uses reflected radio waves to determine the velocity and location of objects
Term
thermometer
Definition
measures temoerature
Term
isobar
Definition
lines connecting location of equal pressure wind will be fastest where they are closer together
Term
weather forecast
Definition
a forecast of the weather
Term
weather map
Definition
a map showing the principal meteorological elements at a given time and over an extended region.
Term
climate
Definition
the average weather conditions in an area over a long period of time; described by temperature and precipitation
Term
La Nina
Definition
A cooling of the water in the equatorial Pacific, which occurs at irregular intervals and is associated with widespread changes in weather patterns
Term
specific heat
Definition
the amount of energy required to change the temperature of 1 g of a substance by 1 degree Celsius
Term
El Nino
Definition
An irregularly occurring and complex series of climatic changes affecting the equatorial Pacific region and beyond every few years, characterized by the appearance of unusually warm, nutrient-poor water off northern Peru and Ecuador, typically in late December
Term
monsoon
Definition
seasonal winds that cause both floods and drought
Term
weather
Definition
Term
polar climate
Definition
Term
mid-latitude climate
Definition
Term
local climate
Definition
Term
desert
Definition
Term
savanna
Definition
Term
subarctic
Definition
Term
humid subtropic
Definition
Term
humid continental
Definition
Term
marine west coast
Definition
Term
tropical climate
Definition
Term
microclimate
Definition
the climate of a small area
Term
rain forest
Definition
Term
polar icecaps
Definition
Term
tundra
Definition
Term
mediterranean steppe
Definition
Term
marine west coast
Definition
Term
thunderstorm
Definition
a usually brief, heavy storm that consists of rain, strong winds, lightning, and thunder
Term
topography
Definition
the surface features of land
Term
ice cores
Definition
where evidence of past climate is found in concentrations of gases in ice and meltwater
Term
sea-floor sediments
Definition
where evidence of past climate is found, high isotope 18 oxygen levels in shells of microorganisms indicate cool water, while lower levels indicate warm water
Term
tree rings
Definition
where evidence of past climate is seen in their width
Term
fossils
Definition
where evidence of past climate is found in remains of plants and animals which had adaptations to a particular environment's climate
Term
temperature and precipitation
Definition
two major factors used to describe climate
Term
squall
Definition
associated with cold fronts
Term
fetch
Definition
the amount of unobstructed space that wind travels, distance wind travels without hitting something
Term
isotherm
Definition
on a map, a line that connects places of equal temperature
Term
report
Definition
happening now or in the past
Term
forecast
Definition
happening in the future
Term
watch
Definition
conditions are right so conditions can develop
Term
warning
Definition
conditions have been spotted, or found on radar
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