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Early season spring small grains direct proportion estimation - Development and evaluation of a Landsat based methodologyThe Inventory Technology Development (ITD) project of the Agriculture and Resources Inventory Surveys Through Aerospace Remote Sensing (AgRISTARS) program has developed an accurate, automated technology for early season estimation of spring small grains areal proportion from Landsat MSS data. The design criteria for an early season procedure included estimates available within the first 30 days of the growing season, low data processing/preprocessing requirements and no need for scene-to-scene registration. The prototype estimator which meets the design goals is based on a constrained linear model in which the observed spectral response of an entire scene is modeled as a linear combination of the major constituent elements in the scene. The procedure was evaluated over 100 sample segments collected for crop years 1976 through 1979 in the U.S. Northern Great Plains. Analysis of the test results indicated accuracy that compare favorably with both the automated at-harvest technologies tested during the FY81-82 AgRISTARS Spring Small Grains Pilot experiments and earlier analyst-intensive at-harvest technologies.
Document ID
19850035406
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Phinney, D. E.
(Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)
Trichel, M. C.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: 1983 International Geoscience and Remote Sensing Symposium (IGARSS ''83)
Location: San Francisco, CA
Start Date: August 31, 1983
End Date: September 2, 1983
Accession Number
85A17557
Funding Number(s)
CONTRACT_GRANT: NAS9-15800
Distribution Limits
Public
Copyright
Other

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