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VIRIS VIrIS Visible/Infrared Intelligent Spectrometer.

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Presentation on theme: "VIRIS VIrIS Visible/Infrared Intelligent Spectrometer."— Presentation transcript:

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2 VIRIS VIrIS Visible/Infrared Intelligent Spectrometer

3 White Pine Spectral Curve & Landsat Band Regions TM1 (Blue) TM2 (Green) TM3 (Red) TM4 (NIR) TM5 (MIR) TM7 (MIR) Water Absorption Cellulose Red Edge NIR 3 NIR 1 Leaf Pigments Cell StructureWater Content Lignin

4 Red Edge Inflection Point (REIP)

5 Relationship Between Chlorophyll Concentration and REIP Values (Taken From Moss and Rock, 1991)

6 Chlorophyll Absorption http://www.chm.bris.ac.uk/motm/chlorophyll/chlorophyll_h.htm

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8 Spectral Indices

9 REIP – The Red Edge Inflection Point, a strong indicator of Chlorophyll Content (the higher the number, the greater the amount);

10 Spectral Indices REIP – The Red Edge Inflection Point, a strong indicator of Chlorophyll Content (the higher the number, the greater the amount); NDVI – The Normalized Difference Vegetation Index, an indicator of Greenness (the higher the number, the greener the foliage);

11 Spectral Indices REIP – The Red Edge Inflection Point, a strong indicator of Chlorophyll Content (the higher the number, the greater the amount); NDVI – The Normalized Difference Vegetation Index, an indicator of Greenness (the higher the number, the greener the foliage); TM 5/4 Ratio – An indicator of Wetness or Dryness (the higher the number, the drier the foliage);

12 Spectral Indices REIP – The Red Edge Inflection Point, a strong indicator of Chlorophyll Content (the higher the number, the greater the amount); NDVI – The Normalized Difference Vegetation Index, an indicator of Greenness (the higher the number, the greener the foliage); TM 5/4 Ratio – An indicator of Wetness or Dryness (the higher the number, the drier the foliage); The NIR 3/1 Ratio – An indicator of Seasonal Development (the higher the number, the older the foliage).

13 Tree #SenescentHealthyUnhealthy REIP697.6728.5706.9 NDVI0.4010.8420.825 TM540.6320.4990.451 NIR310.9530.850.781

14 Tree #MapleOak Pine- 1st yr Pine- 2nd yr REIP728.5723.9722.3720.8 NDVI0.880.8970.8210.797 TM540.640.5650.4750.533 NIR310.8770.830.8130.865

15 Chlorotic Mottle Stomatal Rows

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