Quiz on ch. 15

Question 1

spectral reflectance sy systems collect data of the terrain in the ______ and _____ and ______

Answer 1

visible, near infared, and short wavelength infared

Question 2

reflectance =

Answer 2

target / reference

Question 3

spectralon is the most widely used material for reference because it has…

Answer 3

the highest diffuse reflectance

Question 4

__________impacts the incoming radiant flux the most

Answer 4

water vapor

Question 5

the irradiance that never reaches the ground and the reflectance from nearby features on the ground are considered to be noise called _________

Answer 5

path radiance

Question 6

clouds are ….

Answer 6

visual evidence of water vapor in the atmosphere

Question 7

best source of light for lab

Answer 7

DC powered tungsten-Quartz-Halogen

Question 8

the greater the amount of stress….the greater

Answer 8

the movement of the red-edge to shorter wavelengths. the short wavelength infared from 1050 to 2500 provides valuable info on the relative turgidity of the plant

Question 9

definition of spectral resolution

Answer 9

full-width-half-maximum of the spectroradiometer response to a monochromatic light source

OR the number and dimension of specific wavelength intervals to which a remote sensing instrument is sensitive