Temp And Moisture

Question 1

What is temp

Answer 1

Measure of kinetic energy of particles in an object

Question 2

Kelvin

Answer 2

0° is no energy
0° C is 273°k

Question 3

Solar radiation

Answer 3

10% UV
45% Vis (visible)
45% IR (infrared)
Mostly short wave lengths .4-.5. Micro meters
Controls seasons and temp

Question 4

Terrestrial radiation

Answer 4

Emitted by earth and its atmosphere
Absorbed by CO2 water vapour and ozone
Very little escapes atmosphere
Primarily long wavelengths which carry less energy

Question 5

Coldest warmest parts of day and factors

Answer 5

Warmest around 2 pm
Coldest after sunrise
Factors
Latitude
Season
Cloud cover
Wind direction and strength
Coastal or inland location
Surface type

Question 6

Specific heat

Answer 6

Amount of heat per unit of mass required to raise temp by one degree Celsius

Question 7

Albedo

Answer 7

Percent of solar radiation reflected (snow 80% forest 5%)

Question 8

Solar insolation

Answer 8

Amount of solar a radiation reching earths surface
Noon is strongest

Question 9

Conduction

Answer 9

Heat transfer through touch

Question 10

Convection

Answer 10

Heat transfer through vertical movement of particles

Question 11

Advection

Answer 11

Horizontal heat transfer through wind

Question 12

Humidity

Answer 12

Water in the air

Question 13

Dew point

Answer 13

Temp at which air will saturate
Indicates moisture in the air
Warmer dew point means greater RH
Closer temps and dew point indicates lower cloud

Question 14

Saturation

Answer 14

100% RH
Maximum water content air can hold

Question 15

Relative humidity

Answer 15

Water vapour in air/water vapour capacity at given temp x 100/1

Question 16

Latent heat

Answer 16

Energy required or dispersed to change state maintaining temp

Question 17

Condensation

Answer 17

Vapour to liquid
Typically through cooling
Surface required (or hygroscopic nuclei)

Question 18

Evaporation

Answer 18

Liquid to gas through heating
Air has total pressure water vapour is partial pressure
Factors
Temp (warmer more Evap due to more energy)
Water content (dry air accepts more water)
Wind (more mixing means more evaporation)
Pressure (less pressure more water vapour)