PRESSURE SYSTEM AND WIND SYSTEM Flashcards
ATM P
WEIGHT OF COLUMN OF AIR IN UNIT AREA
ATM P @ SEA LEVEL
1034 GRAM PER SQ CM
INTERNATIONAL UNIT
ATM
ATM
ATMOSPHERE
METEROLOGICAL UNIT
mb & Pa
mb & Pa
MILLIBARS AND PASCAL
NORMAL PRESSURE AT SEA LEVEL
1013.25 MILLIBARS
1 atm=
1013.25 millibars
1013.25 millibars
101325 pascals
heated air
LP
COOLED NAIR
HIGH PRESSURE SYSTEM
WINTER CONTINENT
HP
SUMMER CONTINENT
LP
EQUAL PRESSURE LINES
ISOBARS
PRESSURE GRADIENT
RATE OF PRESSURE CHANGE
CLOSED SPACING ISOBARS
STRONG PRESSURE GRADIENT
WIDE SPACING ISOBARS
WEAK PRESSURE GRADIENT
PRESSURE GRADIENT IS
DECREASE IN PRESSURE PER UNIT AREA
CLOSED ISOBARS
ENCLOSED BY ISOBARS
NO STRONG UPWARD WINDS BCZ
GRAVITATIONAL FORCE
WIND
HORIZONTAL MOVEMENT OF AIR
CURRENTS
VERTICAL MOVEMENT OF AIR
WIND MOVEMENT FACTORS PBFCGC
PRESSURE GRADIENT FORCE
BUOUANT FORCE
FRICTION FORCE
CORIALIS FORCE
GRAVITATIONAL FORCE
CENTRIPETAL ACCELERATION
GREATER THE PRESSURE DIFFERENCE
GREATER THE WIND SPEED
RISING AIR
CYCLONIC CONDITION
SINKING AIR
ANTICYCLONIC CONDITION
CYCLONIC CONDITION
CONVERGENCE AND UNSTABLE WEATHER
ANTICYCLONIC CONDITION
DIVERGENCE AND STABLE WEATHER
CYCLONE
LP CENTER
ANTICYCLONE
HP CENTER
CYCLONE IN NH
ANTICLOCKWISE
CYCLONE IN SH
CLOCKWISE
ANTICYCLONE IN NH
CLOCKWISE
ANTICYCLONE IN SH
ANTICLOCKWISE
FARRELL LAW
RIGHT IN NH
NH WIND
RIGHT
SH WIND
LEFT
WIND VELOCITY AND CORIOLIS FORCE
DIRECTLY PROPOTIONAL
CORIALIS FORCE AND LATITUDE
DIRECTLY PROPORTIONAL
CORIOLIS FORCE @0 DEG
O
CORIOLIS FORCE @90 DEG
MAX
CORIOLIS FORCE ONLY
MOVING AIR(WIND)
CORIOLIS EFFECT
APPARENT DEFLECCTION OF OBJECT IN STRAIGHT PATH RELATICVE TO EATH SURFACE
EARTH ROTATION DIRECTION
ANTICLOCKWISE
MAXIMUM EARTH SPEED
EQUATOR
MINIMUM EARTH SPEED
POLES
VELOCITY AND CORIOLIS FORCE
DIRECTLY PROPORTIONAL
CONDITION FOR GEOSTROPHIC WIND
STRAIGHT ISOBARS
NO FRICTION
STRAIGHT ISOBAR
NO FRICTION====>
PRESSURE GRADIENT FORCE BALANCE BY CORIOLIS FORCE AND RESULTANT WIND BLOWS PARALLEL TO ISOBARS
GEOSTROPIC WINDS
PRESSURE GRADIENT FORCE BALANCE BY CORIOLIS FORCE AND RESULTANT WIND BLOWS PARALLEL TO ISOBARS
CENTRIPETAL ACCELERATION ACTS
ONLY CIRCULATING AIR
CENTRIPETAL ACCELERATION
INWARD AND RIGHT ANGLES TO WIND MOVEMENT
VORTEX
CIRCULAR PATTERN OF FLOW
CIRCULAR FLOW CREATED BY
CENTRIPETAL ACCELERATION
CENTRIPETAL ACCELERATION PRODUCES
CIRCULAR FLOW
NO TROPICAL CYCLONES AT EQUATOR
ZERO CORIOLIS FORCE
PRESSURE BELTS
EQUATORIAL LOW
SUB TROPIICAL HIGH
SUBPOLAR LOW
POLAR HIGH
NATURE OF PRESSURE BELT
NOT PERMANENT
PB IN SUMMER
MOVE NOTHards
PB IN WINTER
SOUTHWARDS
ELPB/
DOLDRUM
ELPB LAT
10-10 NS
ZONE OF CONVERGENCE OF TRADE WINDS=
INTER TROPICAL CONVERGENCE ZONE
INTER TROPICAL CONVERGENCE ZONE=
ZONE OF CONVERGENCE OF TRADE WINDS=
DOLDRUM=
EXTREMELY CALM AIR MMOVEMENT
EXTREMELY CALM AIR MMOVEMENT
DOLDRUM
ELPB FEATURE
CLOUDS AND THUNDERSTORMS
ELPB FORMED BY
THERMAL EFFECT
ELPB WINDS
ONLY VERTICAL CURRENTS
NO SURFACE WINDS
WHY DOLDRUM CALM
NO SURFACE WIND
EXTREMELY LP YET
CALM WEATHER CONDITION
EQUATORIAL RF
CONVENTIONAL
EQUATORIAL CLOUDS
CUMULONIMBUS THUNDERSTORMS
NEGLIGIBLE CORIOLIS FORCE
NO CYCLONE