The ERTS-1 Investigation (ER-600). Volume 3: ERTS-1 Forest Analysis PDF Download
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Author:
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Category :
Languages : en
Pages : 116
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Author:
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ISBN:
Category :
Languages : en
Pages : 116
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Author: R. Bryan Erb
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Category : Aerial photography in agriculture
Languages : en
Pages : 116
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Category : Aeronautics
Languages : en
Pages : 1056
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Author: R. Bryan Erb
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Category : Aerial photography in agriculture
Languages : en
Pages : 122
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Book Description
The Agriculture Analysis Team of the Johnson Space Center conducted a 1-year-long investigation of ERTS-1 multispectral data to evaluate how well features of agricultural importance could be detected, identified, and located; and their areal extent measured. Six study areas were selected in cooperation with the U.S. Department of Agriculture. Two basic analytical approaches were used to meet the objectives. The conventional image interpretation technique revealed that a particular color was an indication of the density of vegetative cover, not an indication of crop classification. Computer-aided techniques were used to classify crop types (i.e., small grains, truck farm crops, grasses, summer fallow) to accuracies as high as 95 percent on large (12 hectares or more) well-defined fields. A further breakdown into crop species (wheat, barley, soybeans, oats, corn) reduced the accuracy to 70 to 80 percent for single-date observations.
Author: R. Bryan Erb
Publisher:
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Category : Aerial photography in agriculture
Languages : en
Pages : 132
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Category : Astronautics in earth sciences
Languages : en
Pages : 910
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Author: United States. National Aeronautics and Space Administration
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Category : Aeronautics
Languages : en
Pages : 1068
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Category :
Languages : en
Pages : 188
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Category : Research
Languages : en
Pages : 848
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Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: United States. Superintendent of Documents
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Category : Government publications
Languages : en
Pages : 1478
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
