Comparison of leaf and canopy reflectance of subarctic forests
Near-surface and aerial reflectance of foliage and canopies of subarctic forests were measured in central Alaska near Fairbanks. Bi-directional and hemispherical radiometric data were recorded over wavelengths ranging from 0.285 to 2.8 μm with emphasis on Landsat TM (Thematic Mapper) bands. Comparis...
| Main Authors: | , , |
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| Format: | Text |
| Language: | unknown |
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Hosted by Utah State University Libraries
1986
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| Subjects: | |
| Online Access: | https://digitalcommons.usu.edu/aspen_bib/3705 https://www.asprs.org/wp-content/uploads/pers/1986journal/jun/1986_jun_809-811.pdf |
| Summary: | Near-surface and aerial reflectance of foliage and canopies of subarctic forests were measured in central Alaska near Fairbanks. Bi-directional and hemispherical radiometric data were recorded over wavelengths ranging from 0.285 to 2.8 μm with emphasis on Landsat TM (Thematic Mapper) bands. Comparison of near-surface and aerial data indicates that the canopy of some species such as black spruce and aspen have reflectance values similar to their respective foliage. Other species such as birch have large differences. Canopy structure and understory vegetation appear to be the primary factors that control whether the reflectance of canopy and foliage are similar or different. The results suggest that radiation reflected from the canopy of some forest species will be close to laboratory measurements of foliage after atmospheric corrections. |
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