Appreciation of Earth Observing Systems

 

GSAR X3

Page history last edited by Avril Behan 2 yrs ago

GSAR x3, Geophysical & Environmental Research Corp

Question 1

Into what category of EOS does this instrument fall?

This instrument is a synthetic aperture radar

 

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Question 2

What capture technology is used?

Scanning Mechanism

 

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Question 3

Is the sensor active or passive?

The sensor is active

 

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Question 4

At what wavelength(s) does the sensor function?

X-band frequency

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Question 5

What resolution does the sensor have? – temporal & spatial

Temporal

N/A as the instrument is airborne

Spatial

Stripmap mode – 8 m

Spotlight mode – 1.8 m

Ground Moving Vehicle Indicator – 6 m

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Question 6

Is the sensor carried on an airborne or spaceborne platform? What is that platform - typically?

The sensor can be used in several ways. It is usually attached to the underside of an aircraft but it is also regularly used while positioned on a ground moving vehicle. A crane is extended around 35-40 feet in the air and the sensor scans the surrounding area.

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Question 7

Who developed, launched and manages the sensor?

The sensor was jointly developed by Instaar, SpectroTech & Geophysical and Environmental Research Corp. SpectroTech provides the aircraft and remote sensing equipment, as well as assistance with ground operations, including ground truthing and data processing.

 

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Question 8

Can data be purchase from service provider?

No

 

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Question 9

What products are available from service providers?

Real-time SAR imagery (1 & 4-look data)

Interferometric SAR DTMs

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Question 10

At which main application areas is the sensor aimed?

• Surveillance & Detection

• Forestry

• Fire Monitoring

• Topographical Mapping

• Crop Status and Classification

• Search and Rescue

• Water Resources

• Flood Assessment

• Marine monitoring

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