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1

Wavelength of maximum energy emittance

λmax = (2897μm·K)/ T

- remember to convert temp to K

2

How to turn °C into K

K = °C + 273.15

3

Solar noon

time of the day when the solar elevation is greatest. Sun is at its highest position in the sky

- Solar Azimuth will be 180° north of tropic of cancer
- Solar azimuth will be 0° south of topic of capricorn

4

Solar declination

Latitude of the sub-solar point

5

Perihelion

January 3rd

6

Aphelion

July 4th

7

Calculating solar noon

90° - lat + solar declination

8

Extra-terrestrial irradiance formula

(Kext)

Eo is the eccentricity correction factor, sol is the solar elevation

9

QH

sensible heat