VIRIS VisibleInfrared Intelligent Spectrometer TM 7 MIR Water

VIRIS Visible/Infrared Intelligent Spectrometer

TM 7 (MIR) Water Absorption Cell Structure TM 5 (MIR) Water Absorption NIR 3 NIR 1 Leaf Pigments Lignin TM 4 (NIR) Red Edge TM 1 (Blue) TM 2 (Green) TM 3 (Red) White Pine Spectral Curve & Landsat Band Regions Water Content Cellulose

Red Edge Inflection Point (REIP)

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

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

Spectral Indices

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

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);

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);

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).

Chlorotic Mottle Stomatal Rows

Tree # Senescent Healthy Unhealthy REIP 697. 6 728. 5 706. 9 NDVI 0. 401 0. 842 0. 825 TM 54 0. 632 0. 499 0. 451 NIR 31 0. 953 0. 85 0. 781

Tree # Maple Oak Pine 1 st yr Pine 2 nd yr REIP 728. 5 723. 9 722. 3 720. 8 NDVI 0. 88 0. 897 0. 821 0. 797 TM 54 0. 64 0. 565 0. 475 0. 533 NIR 31 0. 877 0. 83 0. 813 0. 865