REVIEW:
ATMOSPHERE
AIR MASSES
WINDS
Most pictures are not to scale.
Please excuse this, Will.
THE EARTH’S ATMOSPHERE IS MADE
OF 4 MAIN LAYERS.
LIST THEM IN ORDER FROM EARTH’S SURFACE.
THERMOSPHERE
(IONOSPHERE & EXOSPHERE)
MESOSPHERE
STRATOSPHERE
TROPOSPHERE
“SHOOTING STARS” OR METEORS CAN BE SEEN
MOVING THROUGH THIS LAYER.
MESOSPHERE
THIS IS THE
THICKEST LAYER
WITH THE
HIGHEST
TEMPERATURES.
THERMOSPHERE
THE OZONE LAYER IS FOUND
WITHIN THIS LAYER.
{DAMAGE TO THE OZONE LAYER MAY
BE DUE TO SMOG & CHEMICALS CALLED
CFC’S (THAT COME FROM SPRAY CANS
& REFRIGERATOR COOLANTS UNDER
PRESSURE!}
SMOG & CFCS
STRATOSPHERE
THIS IS THE
LAYER WHERE
WE LIVE &
BREATHE.
ITS WHERE IT
RAINS &
SNOWS, TOO!
TROPOSPHERE
Earth
THIS LAYER OF THE
ATMOSPHERE IS THE
LAST STOP BEFORE
ENTERING “OUTER
SPACE”.
EXOSPHERE
TRUE OR FALSE?
THE ATMOSPHERE IS
MADE OF GASES
ONLY.
FALSE!
THE MOST ABUNDANT GASES IN
DRY AIR ARE
A. CARBON DIOXIDE & OXYGEN
B. NITROGEN & OXYGEN
C. CARBON DIOXIDE & ARGON
B. NITROGEN & OXYGEN
WHICH IS HEATED FASTER BY
THE ENERGY FROM THE SUN,
LAND OR WATER?
LAND
IT TAKES LESS ENERGY TO HEAT THE LAND.
REMEMBER: SAND FEELS VERY HOT WHEN YOU WALK
ON IT DURING THE DAY, SO YOU RUN TO COOLER
WATER!
WHICH AREA OF EARTH RECEIVES
MORE DIRECT SOLAR RADIATION?
A. THE EQUATOR
B. THE POLES
C. NEITHER OF THESE
A. THE EQUATOR
WIND IS CAUSED BY
A. DIFFERENCES IN AIR PRESSURE
(CAUSED BY COOL & WARM TEMPS)
B. MOVEMENT OF CLOUDS AT
DIFFERENT LEVELS OF THE
ATMOSPHERE
C. CHANGES IN THE WATER CYCLE
A. DIFFERENCES IN AIR PRESSURE
COOL (SINKS) & WARM (RISES)
WHICH PICTURE SHOWS A LAND BREEZE
&
WHICH SHOWS A SEA BREEZE?
SEA BREEZE
• DURING THE DAY
• BREEZE BLOWS FROM THE COOLER SEA
TOWARDS THE WARMER LAND
LAND BREEZE
• AT NIGHT
• BREEZE BLOWS FROM THE COOLER LAND
OUT TOWARDS THE STILL-WARM SEA
WHAT IS THE NAME OF THE WINDS SHOWN
IN THE RED AREA BELOW?
(THEY MOVE STORMS ACROSS THE U.S.)
JET STREAM
HOW WOULD
YOU LABEL EACH
AIR MASS IN THE
DIAGRAM?
(REMEMBER:
EACH AREA
NEEDS A TEMP &
A HUMIDITY
DESCRIPTION)
REMEMBER: EACH
NEEDS A TEMP
(POLAR OR
TROPICAL)
&
HUMIDITY
DESCRIPTION
(CONTINENTAL OR
MARITIME)
THE AIR MASSES ARE
THE “BOXES”, THE
ARROWS SHOW
WHERE THEY ARE
MOVING
cP
mP
cP
mP
mT
cT
mT
mT
LABEL THE GLOBAL WINDS
Remember…
mirror image
GLOBAL WINDS
POLAR
EASTERLIES
PREVAILING
WESTERLIES
TRADE WINDS
TRADE WINDS
PREVAILING
WESTERLIES
POLAR
EASTERLIES