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Rita Horfarter

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SEGES, Denmark

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Rita Horfarter

  1. 1. CROPSAT – VEGETATION INDEX ON BEHALF OF SENTINEL 2A Rita Hørfarter SEGES Denmark CAPIGI the 24. of May 2016
  2. 2. AGENDA ● SEGES and The Danish advisory system ● ESA and satellit Sentinel 2A ● CropSAT.dk ● Experience so far 2...
  3. 3. THE DANISH ADVISORY SYSTEM 3... Farmers Farmers Farmers 40,000 farmers (not all fulltime) 2,1 mill ha farm land Local agricultural advisory centre Local agricultural advisory centre Local agricultural advisory centre 26 local advisory Centres 3,000 employees SEGES650 employees Agricultural sciences: Local/Global Danish Agriculture & Food Council Ministry of Environment and Food Agricultural legislations Municipality
  4. 4. CROPSAT.DK ● CropSAT is a application for Variable Rate Application of nitrogen and pesticides based on satellite data (vegetation index) ● The purpose is to redistribute nitrogen in the field and reduce nitrogen loss to the environment ● CropSAT.dk is a free tool on the internet ● CropSAT is developed by SLU, Sweden and partners ● SEGES and the Danish Ministry of Environment and Food have bought CropSAT.dk 4...
  5. 5. SENTINEL 2: MULTISPECTRAL CAMERA  Around the planet in 90 minutes  Orbits in an altitude of 800 km  Denmark is recorded in 10 seconds  Width per picture is 290 km  Satellite Photos every seventh day in 2016/ third dag in 2017  Resolution is 10 x 10 meter The European Space Agency (ESA) Satellite programme
  6. 6. 6... CropSAT.dk
  7. 7. 7... 11111111
  8. 8. 8... Press the field polygon to see the vegetation index Fields with corresponding CVR* numbers = grey *the Central Business Register
  9. 9. 9... NDVI Kg N per ha High biomass Low biomass
  10. 10. High biomass Low biomass Kg N per ha
  11. 11. Overwrite with kg N / ha according to fertilizer plan
  12. 12. SHAPE FILE
  13. 13. CHALLENGES - CLOUDS AND SHADOWS Sentinel 2A on the 28. of April 2016 Sentinel 2A on the 8. of May 2016
  14. 14. NDVI – PICTURES FROM THE SAME FIELD ON THE SAME DAY 14...
  15. 15. Challenges: ● Clouds and shadows are a problem ● Get used to the big amount of data ● How often do we need data (time consuming) ● Witch applications will the farmers benefit from CropSAT – mainstream Precision Farming ● 5.000 different IP-adresses so far ● 6 webinars with 140 farmers ● Articles on SEGES website ● Farmers magazine ● PF technique is a challenge for both farmers and suppliers of sprayers and fertilizer spreaders ● Close contact to the suppliers EXPERIENCE SO FAR
  16. 16. THANK YOU FOR YOUR ATTENTION
  17. 17. SIDE 17 Cloud free days

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