Weather Flashcards
Convection currents
Daytime – air Overland heats up more quickly than air over water air rises, cool air over water moves in to replace air Overland convection currents form equal Seabreeze
Night time – air Overland coolest done more quickly than air over water air over water rises and replaces air overwater convection currents farm tools land breeze
Latitude
Imaginary lines that run across the earth from east toWest, measures distance in degrees from the equator
Longitude
Merry lines that run from north to south measured in degrees east or west of the prime radian
Three fundamental processes affect the wind currents on earth
Number one convection number to Coriolis effect number three jet streams
The Coriolis effect
As wind moves toward equator and is moving more quickly than air air will twist west as air moves away they quit it it is moving more quickly than the gun any air will twist East
Northern hemisphere in the Coriolis effect
Winds tend to move clockwise, north of 60° north the winds blow West these winds are called polar easterlies
Southern hemisphere and the Coriolis
In southern hemisphere winds 10 to move counterclockwise across southern Canada 49° north the wind blow primarily to the east these Windsor called the prevailing westerly’s
Jet streams
Jet streams are ribbons of extremely fast moving air between 100 and 300 km an hour
El Niño
I weather phenomenon that has indirect effect on most areas of the globe
What is El Niño
Trade winds in Pacific when’s reversible causes upwelling to stop coastlines these openings usually bring cool nutrient waters to coastal regions
Effects of El Niño
Temperatures of coastal waters rise several degrees coastal waters can’t support fish populations, causes dramatic change in local weather patterns
Thermometer
Measures how hot it is by the mound of liquid it takes up in the tube
How thermometer works
Density is defined as the ratio of mass to the density of any liquid is consistent at a given temperature
Hygrometer
When some materials get wet there’s characteristics property changeshygrometer uses these changes to measure moisture in the air