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Introduction to Visible Remote Sensing

Discover the basics of visible remote sensing, the NDVI concept, and how it aids in assessing plant health. Explore electromagnetic radiation, surface reflectance, and plant physiology. Engage in discussions and Q&A sessions.

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Introduction to Visible Remote Sensing

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  1. Introduction to Visible Remote Sensing Jeff Davids TU Delft | S4W | H2oTech

  2. Outline • Introduction to Visible Remote Sensing • NDVI - Normalized Difference Vegetation Index • Questions and Discussion

  3. Outline • Introduction to Visible Remote Sensing • NDVI - Normalized Difference Vegetation Index • Questions and Discussion

  4. Electromagnetic Radiation (EMR) Source: https://www.e-education.psu.edu/geog160/sites/www.e-education.psu.edu.geog160/files/7-3_1.png

  5. Source:https://landsat.gsfc.nasa.gov/wp-content/uploads/2016/10/all_Landsat_bands.pngSource:https://landsat.gsfc.nasa.gov/wp-content/uploads/2016/10/all_Landsat_bands.png

  6. Reflectance of Different Surfaces • Vegetation absorbs most visible red light but reflects lots of near infrared (NIR) Source: http://www.seos-project.eu/modules/remotesensing/images/Reflexionskurven.jpg

  7. Outline • Introduction to Visible Remote Sensing • NDVI - Normalized Difference Vegetation Index • Questions and Discussion

  8. Plant Physiology • Plants need to “breath” carbon dioxide • They breath through little “mouths” call stoma • Water is transpired through stoma Source: https://thumbs.dreamstime.com/z/leaf-anatomy-vector-diagram-photosynthesis

  9. Source: https://media.licdn.com/mpr/mpr

  10. Source: https://sentera.com/wp-content/uploads/2017/05/NDVI-Values-and-Plant-Health.png

  11. Source: https://dronemapper.com/sites/default/files/dm_ag_ndvi_class1.png

  12. Questions and Discussion

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