final exam review

Question 1

Spectralon demonstrates the highest ______ reflectance of any known substance

Answer 1

diffuse

Question 2

2 absorption bands in nanometers

Answer 2

1400 nm and 1850 nm (1.4um and 1.85 nm)

Question 3

the spectrum of florescent light is characterized by _____ which are not seen in the quartz-halogen lamp

Answer 3

spikes

Question 4

Can white light be created by mixing colored light?

Answer 4

yes

Question 5

This person was the first to use a prism to disperse colored light

Answer 5

newton

Question 6

three types of platforms used to take arial photos before airplanes

Answer 6

pigeon, hot air ballon, kite

Question 7

First satellite to be launched into space

Answer 7

sputnik

Question 8

The first photograph , invented by Niepce had to be exposed for how many hours to record an image?

Answer 8

8 hours

Question 9

Daguerre improved on Niepce’s design. Thus photographs developed using his method were known as …

Answer 9

Daguerreotypes

Question 10

the first photos recorded positive or negative images?

Answer 10

positive

Question 11

what type of aerial platform was used during the civil war

Answer 11

balloons

Question 12

type of aerial platform used by the US to try to spy on Russia and China before the U2 aircraft

Answer 12

high altitude balloons

Question 13

what type of platform was Corona

Answer 13

satellite

Question 14

UAV stands for

Answer 14

unmanned aerial vehicle

Question 15

Landsat 4 and 5 have ______ quantization levels

Answer 15

8 bit

Question 16

type of orbit of landsat

Answer 16

sun-synchronous

Question 17

T or F: The GOES satellite is useful for weather monitoring

Answer 17

True

Question 18

Remotely sensed multispectral bad data is stored in a matrix of

Answer 18

rows and columns

Question 19

DPI

Answer 19

dots per inch

Question 20

swath width of landsat platforms 1,2,3,4,5

Answer 20

185 km

Question 21

year the first version of landsat was launched

Answer 21

1972

Question 22

both sound and light exhibit properties of

Answer 22

waves

Question 23

sound cannot travel through a

Answer 23

vacuum

Question 24

sound is faster in air or water?

Answer 24

water

Question 25

reflection that occurs in a smooth mirror-like surface is

Answer 25

regular

Question 26

electromagnetic radiation is generated when an electric charge is...

Answer 26

accelerated

Question 27

sound is transmitted via

Answer 27

compression waves

Question 28

reflection that occurs from a rough irregular surface is referred to as

Answer 28

diffuse

Question 29

what is the SI unit of power?

Answer 29

watt, which is one joule per second

Question 30

speed of light in a vacuum

Answer 30

300,000,000 m/s

Question 31

in regular reflection the angle of reflection is equal to the angle of

Answer 31

incidence

Question 32

visible spectrum

Answer 32

0.4 - 0.7 um

Question 33

units of W m^-2 are used to express

Answer 33

exitance and irradiance

Question 34

fraction of incident radiant energy absorbed by a surface is given the quantity termed

Answer 34

absorptance

Question 35

considering the scattering of light in the atmosphere, which color is scattered the most?

Answer 35

blue

Question 36

true or false: differences in wavelength among different types of EMR result from differences in manner of production

Answer 36

true

Question 37

radiant flux per unit solid angle leaving an extended source in a given direction per unit projected source area in that directionsd (W m^-2 sr^-1 is called the _____ of the source

Answer 37

radiance

Question 38

the direction in which scattered light travels is unpredictable, whereas the direction is ______

Answer 38

predicable

Question 39

type of scattering when the diameter of the matter (usually air molecules) is many times smaller than the wavelength of the incident electromagnetic radiation

Answer 39

rayleigh

Question 40

type of scattering when there are essentially spherical particles present with diameters approximately equal to the wavelength of radiation being considered

Answer 40

mie

Question 41

type of scattering produced when there are particles in the atmosphere several times the diameter of the radiation being transmitted

Answer 41

non-selective

Question 42

range of wavelengths (or frequencies) int he electromagnetic spectrum within which radiant energy is absorbed by substances such as water carbon dioxide, oxygen, ozone, and nitrous oxide

Answer 42

absorption band

Question 43

RADAR pulse length measured in

Answer 43

micro seconds

Question 44

planimetrically-uncorrrected RADAR imagery displayed in

Answer 44

slant-range geometry

Question 45

planimetrically-corrected RADAR imagery displayed in

Answer 45

ground-range geometry

Question 46

thermal _____ measure of tendency of material to transfer energy to another substance

Answer 46

conductivity

Question 47

thermal ____is a measure of tendency of a material to store energy

Answer 47

capacity

Question 48

thermal ______is a measure of the tendancy of a material to remain at the same temp as external temp is changed

Answer 48

inertia

Question 49

______ period of the day after sunrise and near sunset when the radiant temp of many materials is the same

Answer 49

crossover

Question 50

most thermal investigations tryu to achieve a high spatial res by flying the sensor at a ______

Answer 50

low alt.

Question 51

thermal infrared spectrum

Answer 51

3 um to 14 um

Question 52

infrared discovered by

Answer 52

herschel

Question 53

correlation of object's kinetic temp and ____ is basis of thermal infr. remote sensing

Answer 53

radiant

Question 54

emissivity is the ratio between the radiant flux exiting a real-world object and the radiant flux that would exit a blackbody at the same _____

Answer 54

wavelength

Question 55

we can det. the dominate wavelength of emission from a blackbody using Wein's Displ. Law if we know the ______ of the blackbody

Answer 55

temp

Question 56

true or false: the emmisivities of polished metal tend to be much less than the emissivityof pure liquid water

Answer 56

true

Question 57

the Russ. physicist Kirchoff found that in the infra. port. of the spect. , the spectral emmissivity of an object generally equals its spectral ___

Answer 57

aborptivity

Question 58

LIDAR systems utilize wavelengths in the ____ spectral region for topographic mapping

Answer 58

1040-1060 nm

Question 59

LIDAR systems utilize wavelengths in the ____ spectral region for bathymetric mapping

Answer 59

532 nm

Question 60

when using a 1064nm laser in LIDAR remote sensing, would you be able to measure signal from bottom of a clear pond

Answer 60

no

Question 61

instantaneous laser _____

Answer 61

footprint

Question 62

uses roll, pitch, and yaw gyroscopes and accelerometers to measure the orien. of the LIDAR antenna at the exact moment every pulse is transmitted and received

Answer 62

inertial measurement unit