Components of remote sensing

What is remote sensing?

The acquisition of information about an object or phenomenon without making physical contact with it.

Using a remote control to operate a device from a distance.

Sending signals through the air to control a device.

The process of sending data wirelessly over long distances.

What is passive remote sensing?

The detection of natural energy that is reflected or emitted by objects.

The use of active sensors to emit energy and measure the response.

The process of collecting data using satellites.

The analysis of data collected from a distance.

What is the purpose of image interpretation in remote sensing?

To extract meaningful information from remotely sensed images.

To enhance the visual quality of images.

To transmit images wirelessly.

To analyze data collected from a distance.

What is hyperspectral imaging used for in remote sensing?

To capture detailed information about the spectral characteristics of objects.

To create high-resolution images.

To measure temperature variations.

To detect radio waves.

What is the main advantage of using satellite-based remote sensing?

Global coverage and the ability to collect data over large areas.

Higher spatial resolution compared to other platforms.

Lower cost of data acquisition.

Greater flexibility in sensor selection.

What is LiDAR commonly used for in remote sensing?

Generating highly accurate elevation models and mapping terrain.

Capturing high-resolution aerial photographs.

Detecting changes in vegetation health.

Measuring ocean currents and temperatures.

What is the role of GIS in remote sensing?

To analyze and manage spatial data collected through remote sensing.

To capture remotely sensed images.

To interpret satellite imagery.

To develop new remote sensing technologies.

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