Introduction

Question 1

What is resolution?

Answer 1

It refers to the pixel size of an image and it clarity

Question 2

Data depth refers to _________.

Answer 2

Precision.

Question 3

What is the difference between real and integer storage?

Answer 3

Real uses more bit storage than integer.
Real: 32 bit
Integer: 8 bit

Question 4

Remote sensing systems record __________ energy.

Answer 4

Electromagnetic

Question 5

Different types of sensors record different _________.

Answer 5

Wavelengths

Question 6

What is an active system?

Answer 6

A system that generates its own energy, it can emit energy and record the return signal.

Question 7

What is the advantage of active sensing?

Answer 7

It doesn’t rely on sunlight so it isn’t limited by daylight.

Question 8

What are some examples of remote sensing, and what wavelengths do they use? (3)

Answer 8

LIDAR- uses visible and infrared
RADAR- microwave
SONAR and seismic- long sound waves

Question 9

What is a passive system?

Answer 9

Systems that rely on outside energy sources. The most common energy source is the sun. Usually using visible wavelengths .

Question 10

What are some examples of a passive system.

Answer 10

Aerial photography, multi spectral scanners, thermal sensors

Question 11

Remote sensing is an important tool in ____________.

Answer 11

Resource management

Question 12

What are four examples of resource management?

Answer 12

Population spread and development
Aral Sea
Fisheries
Forestry

Question 13

Define Remote Sensing.

Answer 13

A form of collecting information about an object without coming into physical contact with it.