NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Temporal spectral response of a corn canopyTechniques developed for the prediction of winter wheat yields from remotely sensed data indicating crop status over the growing season are tested for their applicability to corn. Ground-based spectral measurements in the Landsat Thematic Mapper bands 3 (0.62-0.69 microns), 4 (0.76-0.90 microns) and 5 (1.55-1.75 microns) were performed at one-week intervals throughout the growing season for 24 plots of corn, and analyzed to derive spectral ratios and normalized spectral differences of the IR and shortwave IR bands with the red. The ratios of the near IR and shortwave IR bands are found to provide the highest and most consistent correlations with corn yield and dry matter accumulation, however the value of band 5 could not be tested due to the absence of water stress conditions. Integration of spectral ratios over several dates improved the correlations over those of any single date by achieving a seasonal, rather than instantaneous, estimate of crop status. Results point to the desirability of further tests under other growth conditions to determine whether satellite-derived data will be useful in providing corn yield information.
Document ID
19820029351
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Markham, B. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kimes, D. S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tucker, C. J.
(NASA Goddard Space Flight Center Earth Resources Branch, Greenbelt, MD, United States)
Mcmurtrey, J. E., III
(Science and Education Administration, Field Crops Laboratory, Beltsville MD, United States)
Date Acquired
August 10, 2013
Publication Date
November 1, 1981
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 47
Subject Category
Earth Resources And Remote Sensing
Accession Number
82A12886
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available