3.4.2. Vegetation and Water Indices

Try these first

1. 1.

   What does NDVI stand for?

   Hint

   Think of the focus on vegetation.

2. 2.

   Which bands are used in calculating NDWI?

   Hint

   Consider the colors in the spectrum.

3. 3.

   What does NDVI measure?

   • Vegetation health
   • Water bodies
   • Soil density

   Hint

   Think about what is important for plant life.

4. 4.

   True or False: NDWI uses Red and NIR bands.

   • True
   • False

   Hint

   Remember the purpose of NDWI.

5. 5.

   Describe a case where NDVI would yield skewed results due to atmospheric interference.

   Hint

   Consider how weather can affect light.

6. 6.

   Propose a multi-index approach to monitor changes in wetland areas, incorporating NDWI with another index.

   Hint

   Think about how different indices can complement each other.