gsp 216 4/25

Front

In radar imagery, what color does smooth water tend to appear?

Back

Black

Front

What is radar imagery?

Back

Radar imagery is a type of remote sensing that uses radar signals to detect and visualize objects and surfaces on the Earth.

Front

What are the main components of a radar system?

Back

The main components of a radar system include a transmitter, receiver, antenna, and signal processor.

Front

How does radar detect objects?

Back

Radar detects objects by sending out radio waves and measuring the time it takes for the waves to bounce back after hitting an object.

Front

What is the significance of the color black in radar imagery?

Back

In radar imagery, black typically indicates smooth surfaces like water, which reflect radar signals differently than rough surfaces.

Front

What factors can affect radar imagery interpretation?

Back

Factors include surface roughness, moisture content, vegetation, and atmospheric conditions.

Front

What is the difference between active and passive remote sensing?

Back

Active remote sensing involves sending out signals (like radar), while passive remote sensing detects natural radiation (like sunlight) reflected from surfaces.

Front

What is the role of the antenna in a radar system?

Back

The antenna transmits radar signals and receives the echoes reflected from objects.

Front

What is the purpose of signal processing in radar systems?

Back

Signal processing enhances the received signals to improve the quality and accuracy of the radar imagery.

Front

What is the effect of surface roughness on radar imagery?

Back

Rough surfaces scatter radar signals, which can result in lighter colors in the imagery, while smooth surfaces reflect signals more uniformly.