TEMPERATURE AND HEATING CAP2 Flashcards
CELSIUS TO FAHRENHEIT ? (SIMPLIFIED FORMULA)
FAHRENHEIT = 1.8 X C + 32
FAHRENHEIT TO CELSIUS? (SIMPLIFIED FORMULA)
C = ( F-32) X 0.56
HEIGHT above ground where THE TEMP IS MESURED?
4FT
WHAT DEOS MEAN TO HAVE AN HIGH OR LOW ALBEDO?
IS THE PROPERTY OF AN OBJECT TO REFLECT RADIATION (HEAT) HIGH ALBEDO LIKE SNOW REFLECTSS ALMOST ALL,AND LOW ALBEDO OBJECTS LIKE DARK SURFACES ABSORBES A LOT
WHAT IS THE HEAT CAPACITY ?
THE AMOUNT OF ENERGY (JOULE) TO INCREASE OR DECREASE THE TEMP OF AN OBJECT.AND IS EXPRESSED IN JOULE/KG/KELVIN
HOW DOES THE WAVE LENGHT OF RADIANTION OF AN OBJECT CHANGE?
THE MORE HOTTER IT’S THE OBJ , THE SHORTER THE WAVE LENGHT AND VICEVERSA.
HOW DOES THE RADIATIATION WHICH REACH THE EARTH SURFACE CALLED?
(85% REACH THE SURFACE AND 15% ITS ABSORBED BY THE OZONE)
INSOLATION
WHAT IS CONDUCTION?
TRANSFER OF ENERGY BY DIRECT CONTACT
IS THE TEMP COLING LAPSE RATE AT NIGHT LARGER AGAINST THE NORMAL 2C/1000FT LAPSE RATE? (DUE TO CONDUCTION)
YES ,AT NIGHT THE SURFACE DIRECTLY ABOVE THE SURF COOLES MUCGH FASTER THAN THE NORMAL LAPS RATE DURING THE DAY
WHAT IS CONVECTION?
VERTICAL TRANSFER OF HEAT
WHAT IS ADVECTION?
HORIZONTAL TRANSFER OF HEAT
EX MOIST HOT AIR FROM SEA MOVES TO THE COLD GROUND SURF.
TO ADVECTION TO EXISTS WIND MUST BE PRESENT.
WHAT IS LATENT HEAT?
HEAT RELEASED OF ABSORBED BY A BODY WITHOUT ANY CHANGE IN ITS TEMP.
EX. WATER FROM LIQUID TO GAS NEEDS TO EVAPORATE,TO EVAPORATE IT NEEDS ENERGY WHICH IS TAKEN BY ITS SURROUNDINGS,WHICH LOWS THE TEMP OF THE LATTER .
WHAT IS THE ECLIPTIC?
THE EARTH’S ORBITAL PLANE AROUND THE SUN.THE EARTH IS 23,5 DEGREES TILTED
PERIHELION?
OCCURS ON 4TH JAN AND WHEN THE EARTH IS CLOSEST TO THE SUN. 91 MILLION AWAY
APHELION?
OCCURS IN 4TH JULY AND IS WHEN THE EARTH IS FURTHEST FROM THE SUN. 95 MILLION MILES AWAY
EQUINOX AND SOLSTICE DAYS ?
EQUINOX 23 SEP
SOL 21 DEC SOL 21 JUNE
EQUINOX 21 MARCH
WHAT IS THERMAL INERTIA?
THE DELAY OF THE MAX TEMP FROM THE MOMENT THE SUN PASSES ITS PEAK .
WHAT HAS THE HIGHEST HEAT CAPACITY ? SEA OR SURFACE?
SEA ,ITS TAKE TIME TO ABSORBS AND RELEASE HEAT
WHat can reduce the diurnal variation of temp ?
Clouds and winds
What is a subsidence inversion?
Cold air sinking from above and due to been compressed the air warmed and some air at the bottom remains colder creating an inversion
Frontal inversion?
When cold front been heavier and denser moving beneath the warm front creaiting and inversion
Valley inversion?
When the air surrounding the mountains cools and sink to the valley. Called katabatic wind which is faster than anabatic win ( when air rises) because gravity helps to sink.
6 TYPES OF ENERGY TRANSFER PROCESSES?
> CONDUCTION. BY CONTACT
CONVECTION. BY VERTICAL MOVEMENT OF AIR
ADVECTION. BY HORIZONTAL MOVEMENT OF AIR
RELEASE OF LATENT HEAT. WHEN CONDENSATE
RADIATION. ABSORPTION OF LONG WAVE RADIATION ( SUN EMMITS SHORT WAVE LENGHT WHICH ARE ABSORBED BY EARTH AND RELEASE LONG WAVE LENGHT WAVE RADIOATION)
TURBULENCE. BY MIXING OF AIR OF TURBALANCE
WHAT IS A DIURNAL VARIATION?
It is the variation of the surface temperature over a 24 hour period Subject to the amount of energy received from the sun verse the amount of energy released from the earth.
MINIMUM TEMPERATURE AT JUST AFTER SUNRISE AND MAXIMUM 2HOURS AFTER NOON. LMT
TYPES OF DIURNAL VARIATION?
CLOUDS EFFECT
WIND EFFECT
TYPES OF TEMPERATURE INVERSION?
1 GROUND INVERSION 2 VALLEY INVERSION 3 FRONTAL INVERSION 4 SUBSIDENCE INVERSION 5 FRICTIONAL LAYER INVERSION 6 TROPOPAUSE INVERSION 7 WINDSHARE INVERSION
