Final Quizz 3

Signals in the _______wavelength range have a higher penetration depth into the soil.

• microwave

• optical

Which Copernicus service would you go to to search for data on air quality and atmospheric composition?

• The Copernicus Marine Environment Monitoring Service

• Sentinel-3

• The Copernicus Atmosphere Monitoring Service

• The Copernicus Climate Change Service

For which region in the electromagnetic spectrum, 1mm - 1m is a reasonable convention?

• Reflected Infrared

• Thermal Infrared

• Microwave region

• Visual region

______ signals are less sensitive to clouds

• Optical

• Microwave

Sentinel-1 satellites are in polar, Sun-synchronous obit at altitude of 693m.

• True

• False

______ signals have a shorter wavelength. Thus carrying more energy, signals from a smaller area can be detected at the sensor.

• Optical

• Microwave

How many bands and at which resolutions are acquired by the Sentinel-2 satellites?

• 15 bands with following resolutions: 10m for VIS and wide NIR bands, 20m for NIR red edge and SWIR bands and 60m for atmosphere and cloud discrimination bands

• 13 bands with following resolutions: 10m for VIS and wide NIR bands, 20m for NIR red edge and SWIR bands and 60m for atmosphere and cloud discrimination bands

• 13 bands with following resolutions: 30m for VIS and wide NIR bands, 60m for NIR red edge and SWIR bands and 100m for atmosphere and cloud discrimination bands

• 15 bands with following resolutions: 10m for VIS and wide NIR bands, 20m for NIR red edge and SWIR bands

______ satellites do exist with their own energy source for illuminating the observed area.

• Optical

• Microwave

For which region in the electromagnetic spectrum, 0.4µm - 0.7µm, is a reasonable convention?

• Reflected Infrared

• Thermal Infrared

• Microwave region

• Visual range

What instrument is carried on board of the Sentinel-1 satellite?

• C-band Synthetic Aperture Radar (C-SAR)

• TROPOspheric Monitoring Instrument (TROPOMI)

• High resolution optical Multispectral Instrument (MSI)

• Sea and Land Surface Temperature Radiometer (SLSTR)