23.3.3. Remote Sensing and Satellite-Based Methods

Try these first

1. 1.

   What does NDVI stand for?

   Hint

   Think about what dimensions are involved in vegetation assessment.

2. 2.

   Describe how SEBAL contributes to AET estimation.

   Hint

   Focus on the purpose of SEBAL.

3. 3.

   What does NDVI primarily assess?

   • Plant health
   • Soil moisture
   • Temperature

   Hint

   Think about what NDVI directly measures in relation to vegetation.

4. 4.

   True or False: SEBAL can be used for estimating evapotranspiration with satellite data.

   • True
   • False

   Hint

   Recall our discussions about SEBAL and its capabilities.

5. 5.

   Consider a region where it is critical to monitor water resources. Discuss how you would design a remote sensing study to estimate AET using different methodologies.

   Hint

   Think about combining various tools and methodologies for a comprehensive approach.

6. 6.

   Propose a method to visualize the changes in AET over time in an agricultural area, integrating remote sensing techniques. What key data would you need?

   Hint

   Consider what changes you can track seasonally and the kind of data that could be gathered through satellite metrics.