1 / 14

Precision Agriculture through Remote Sensing: Understanding Indices & Performance Measures

Explore the world of precision agriculture through remote sensing techniques. Learn about electromagnetic energy, spectral resolution, NDVI, and spatial resolution. Discover how remote sensing platforms like satellites, aircraft, and mobile systems improve farm efficiency and productivity.

davidgreen
Download Presentation

Precision Agriculture through Remote Sensing: Understanding Indices & Performance Measures

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Remote Sensing

  2. What is Remote Sensing? • “The acquisition of information about an object without being in physical contact with it." (Charles Elachi) • Value is the Ability to • Acquire a lot of information • In a very short time • With minimal labor input

  3. Platforms • Done with many different platforms • Satellites • Aircraft • Mobile Platform Precision Agriculture – Lesson 4

  4. Interaction Precision Agriculture – Lesson 4

  5. Electromagnetic Energy • Involves the measurement of electromagnetic energy Precision Agriculture – Lesson 4

  6. Electromagnetic Spectrum Precision Agriculture – Lesson 4

  7. Indices • Normalized Difference Vegetation Index (NDVI) • (NIR - VIS)/(NIR + VIS) • Calibrated Vegetation Map • Enhanced Vegetation Index (EVI) • Vegetation Change Map • Greenness Index • Soil Color Map

  8. Indices Precision Agriculture – Lesson 4

  9. Measures of Performance • Spatial Resolution • Spectral Response • Spectral Resolution • Frequency of Coverage Precision Agriculture – Lesson 4

  10. Spatial Resolution • The size of the smallest object that can be distinguished in an image. Precision Agriculture – Lesson 4

  11. Spectral Response • The ability to respond to radiation measurements within a spectral band. Precision Agriculture – Lesson 4

  12. Spectral Resolution • The ability to differentiate between electromagnetic radiation of different wavelengths. Landsat TM image (bands 6-4-2) Alto Image (comparable bands Precision Agriculture – Lesson 4

  13. Frequency of Coverage • How often a sensing system is available to collect data.

  14. Other Considerations • Timeliness of Provider • Cost of Service • Projection and Coordinate System Used • Ground Truthing

More Related