Question

How many bands does LANDSAT 8 have?

• A. 10
• B. 5
• C. 11
• D. 7

Hint:

• Landsat 8 carries two sensors: OLI and TIRS.
• OLI (Operational Land Imager) has 9 spectral bands:
  • Coastal/Aerosol, Blue, Green, Red, NIR, SWIR1, SWIR2, Panchromatic, Cirrus.
• TIRS (Thermal Infrared Sensor) has 2 thermal bands.
• Total bands for Landsat 8 = 9 (OLI) + 2 (TIRS) = 11 bands.

Answer 1

The Correct Option is C

To determine the number of spectral bands that Landsat 8 has, we need to understand the design and capabilities of the Landsat 8 satellite.

1. Understanding the Concepts:

- Landsat 8: A satellite launched as part of the Landsat program, providing continuous observation of the Earth's surface. It carries two main instruments: the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS).
- Spectral Bands: Different ranges of wavelengths within the electromagnetic spectrum that the satellite sensors can detect. Each band provides unique information about the Earth's surface.

2. Landsat 8 Instruments and Bands:

Landsat 8's OLI sensor captures data in nine spectral bands in the visible, near-infrared, and shortwave-infrared portions of the spectrum. The TIRS sensor captures data in two thermal infrared bands.

3. Determining the Total Number of Bands:

Combining the bands from both the OLI and TIRS sensors: 9 (OLI bands) + 2 (TIRS bands) = 11 bands.

Final Answer:

LANDSAT 8 has 11 bands.