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Phenology satellite experiment (Document No: 19730019494)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dethier, B. E. Blair, B. Hopp, R. J. Ashley, M. D. |
| Copyright Year | 1973 |
| Description | The detection of a phenological event (the brown wave-vegetation senescence) for specific forest and crop types using ERTS-1 imagery is described. Data handling techniques included computer analysis and photo interpretation procedures. Computer analysis of ERTS-1 multispectral scanner digital tapes in all bands was used to give the relative changes of spectral reflectance with time of forests and specified crops. These data were obtained for a number of the study's twenty-four sites located within four north-south corridors across the United States. Analysis of ground observation photography and ERTS-1 imagery for sites in the Appalachian Corridor and Mississippi Valley Corridor indicates that the recession of vegetation development can be detected very well. Tentative conclusions are that specific phenological events such as crop maturity or leaf fall can be mapped for specific sites and possibly for entire regions. |
| File Size | 771828 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730019494 |
| Archival Resource Key | ark:/13960/t73v4bk7x |
| Language | English |
| Publisher Date | 1973-01-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Forests Mississippi Earth Resources Program Phenology Photointerpretation Aerial Photography Landsat 1 Rocky Mountains North America Great Plains Corridor North America Satellite-borne Photography Crop Identification Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
