2.5. Platforms and Sensors

Try these first

1. 1.

   What are ground-based platforms used for?

   Hint

   Think about their role in ensuring data accuracy.

2. 2.

   What is the main difference between passive and active sensors?

   Hint

   Consider the source of energy for data collection.

3. 3.

   What type of platform is used for calibration and validation?

   • Ground-based
   • Airborne
   • Spaceborne

   Hint

   Think about where data validation typically occurs.

4. 4.

   True or False: Passive sensors emit their own energy.

   • True
   • False

   Hint

   Recall how passive sensors capture data.

5. 5.

   Evaluate the differences in data quality between active and passive sensors in terms of spatial and temporal resolutions.

   Hint

   Think about how environment affects data capture.

6. 6.

   Design a hypothetical study that utilizes both airborne and spaceborne platforms to monitor urban growth. Describe the advantages of your chosen platforms and sensors.

   Hint

   Consider what data each type of platform can best provide.