Abstract
Multispectral scanner data were collected in two flights over ground cover plots at an altitude of 305 m. Eight ground reflectance panels in close proximity to the ground cover plots were used to normalize the scanner data obtained on different dates. Separate prediction equations were obtained for both flight dates for all eleven reflective wavelength bands of the multispectral scanner. Ratios of normalized scanner data were related to leaf area index over time. Normalized scanner data were used to plot relative reflectance versus wavelength for the ground cover plots. Spectral response curves were similar to those for bare soil and green vegetation as determined by laboratory measurements. The spectral response curves from the normalized scanner data indicated that reflectance in the 0.72 to 1.3 micron wavelength range increased as leaf area index increased. A decrease in reflectance was observed in the 0.65 micron chlorophyll absorption band as leaf area index increased.
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Claims 5
Claim · model-written summary
Separate prediction equations were obtained for both flight dates and all eleven reflective wavelength bands.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Separate prediction equations were obtained for both flight dates for all eleven reflective wavelength bands of the multispectral scanner.”
t0“maize”
Claim · model-written summary
Ratios of normalized scanner data were related to leaf area index over time.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ratios of normalized scanner data were related to leaf area index over time.”
t0“maize”
Claim · model-written summary
Spectral response curves resembled laboratory measurements for bare soil and green vegetation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spectral response curves were similar to those for bare soil and green vegetation as determined by laboratory measurements.”
t0“maize”
Claim · model-written summary
Reflectance in the 0.72 to 1.3 micron range increased as maize leaf area index increased.
- Organ / stage
- leafe0
- Outcome
- reflectancee0
- Direction
- increasede0
- Qualifier
- 0.72 to 1.3 micron wavelength rangee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reflectance in the 0.72 to 1.3 micron wavelength range increased as leaf area index increased”
t0“maize”
Claim · model-written summary
Reflectance in the 0.65 micron chlorophyll absorption band decreased as maize leaf area index increased.
- Organ / stage
- leafe0
- Outcome
- reflectancee0
- Direction
- decreasee0
- Qualifier
- 0.65 micron chlorophyll absorption bande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A decrease in reflectance was observed in the 0.65 micron chlorophyll absorption band as leaf area index increased.”
t0“maize”