Electromagnetic Radiation
Landsat 4 and 5
Units
Radiometric Variables
Paths
100

generated when an electrical charge is accelerated

What is electromagnetic radiation?

100

0.45 to 0.52

What is blue?

100

joules

What is radiant energy?


100

E

What is solar irradiance?

100

exitance

What is the amount of radiant flux?

200

speed of light equals wavelength times frequency

What is the speed of light?

200

0.52 to 0.60

What is green?

200
watts

What is radiant flux?

200

E

What is spectral solar irradiance?

200

Path 1

What contains spectral solar irradiance?

300

the sun

What is a blackbody?

300

0.63 to 0.69

What is red?

300

watts per square meter

What is radiant flux?

300

Ed

What is diffuse sky irradiance?

300

Path 2

What contains spectral diffuse sky irradiance?

400

wavelength equals K over temperature

What is Wien's displacement law?

400

0.76 to 0.90

What is near-infrared?

400

watts per square meter

What is radiance?
400

Edu

What is upward reflectance?

400

Path 3

What contains energy from the sun?

500

electric and magnetic field

What are the two electromagnetic wave fields?

500

1.55 to 1.75

What is SWIR?

500

dimensionless

What is hemispherical reflectance?

500

Eg

What is global irradiance indicent?

500

Path 4

What contains reflected radiation?

M
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