Equations

Question 1

Density altitude

Answer 1

DA = (actual temp - assumed ISA temp) x 120 + PA

Question 2

Atmospheric density equation

Answer 2

0.3484x (P/T)
T in Kelvin’s (c + 273.15)
P hPa

Question 3

Pressure lapse rate

Answer 3

96T/ρ
T in Kelvin’s +273.15
ρ in hPa

Question 4

Temp conversions

Answer 4

C° to F° (c x 9/5) + 32
F to c (f - 32 ) x 5/9
For k to f just get rid of 273.15

Question 5

Stefan Boltzmann

Answer 5

Ρ = ε Α σ T^4
P is energy radiated
ε emissivity of substance
A surface area
σ Stefan Boltzmann constant (5.67 x 10^-8 w/m^2K)
T temp in Kelvin

Question 6

CCL LCL

Answer 6

LCL is forced lifting of dry air (dalr)
LCL= (400 x (st - dp) x 0.85
St= surface temp
Dp= dew point

CCL is convective lifting of unstable air ( start at higher temp and therefore must travel higher before cloud forms)
CCL = 400 x (st - dp)