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Sampling system for wheat (triticum aestivum l) area estimation using digital landsat mss data and aerial photographs. [brazil]
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Moreira, M. A. Chen, S. C. Batista, G. T. |
| Copyright Year | 1984 |
| Description | A procedure to estimate wheat (Triticum aestivum L) area using sampling technique based on aerial photographs and digital LANDSAT MSS data is developed. Aerial photographs covering 720 square km are visually analyzed. To estimate wheat area, a regression approach is applied using different sample sizes and various sampling units. As the size of sampling unit decreased, the percentage of sampled area required to obtain similar estimation performance also decreased. The lowest percentage of the area sampled for wheat estimation with relatively high precision and accuracy through regression estimation is 13.90% using 10 square km as the sampling unit. Wheat area estimation using only aerial photographs is less precise and accurate than those obtained by regression estimation. |
| File Size | 6552113 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840018019 |
| Archival Resource Key | ark:/13960/t2r54gb72 |
| Language | English |
| Publisher Date | 1984-04-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Statistical Analysis Multispectral Band Scanners Image Processing Earth Resources Program Crop Inventories Crop Calendars Digital Data Aerial Reconnaissance Thematic Mapping Phenology Brazil Landsat 3 Wheat Data Sampling Color Infrared Photography Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
