Notes
Slide Show
Outline
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Remote Sensing: On-Farm Applications
  • Tim Stombaugh
  • Biosystems and Agricultural Engineering
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What is Remote Sensing?
  • Images from satellites or airplanes?
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Any remotely sensed data
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Outline
  • General RS principles
  • Aerial imagery
  • Ground–based sensing
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How do we see color?
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Plant Reflectance
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Visible or Near-Infrared
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Remote Sensing Glasses
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Aerial Imagery
  • Whole-field perspective
  •  All data simultaneously collected
  •  Often not timely
  • Not conducive to real-time control
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Using aerial imagery?
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Using RS Imagery
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Visible and NIR
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Satellite Imagery: DOQQ
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Satellite Imagery: Color 1m
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gis.ky.gov
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Satellite Imagery: IKONOS
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Satellite Imagery
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How to get your boss to buy your toys
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Near Infrared Photography
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UAV Camera Development
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Ground-based Sensors
  • Real-time control possible
  • Expensive
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GreenSeeker
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GreenSeeker
  • Measures NIR and Red (NDVI)
  • Variable rate N in wheat
    • Reduced N with increased yield
  • Yield predictor in forages
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YARA (HYDRO) Fieldscan
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HYDRO Results
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RS also used for
  • Soil sensing
  • Grain quality sensing
  • Moisture variation
  • Yield (variation)
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RS Challenges
  • Usually difficult to identify a specific pest or problem in a crop
  • Calibrations not widely applicable
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Summary
  • Aerial and Ground-based sensing technology
  • Value in visible-light field images
  • Other imagery available (with help from experts)
  • Real-time sensors becoming reality!
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Remote Sensing: On-Farm Applications
  • Tim Stombaugh
  • Biosystems and Agricultural Engineering