| タイトル | Comparison of Skylab and LANDSAT images for geologic mapping in Northern Arizona |
| 本文（外部サイト） | http://hdl.handle.net/2060/19760012426 |
| 著者（英） | Gillespie, A. R.; Abrams, M. J.; Siegal, B. S.; Elston, D. P.; Goetz, A. F. H.; Schafer, F. J.; Lucchitta, I.; Sanchez, A.; Dipaola, W. D.; Wu, S. S. C. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1976-02-27 |
| 言語 | eng |
| 内容記述 | The author has identified the following significant results. It was found that based on resolution, the Skylab S190A products were superior to LANDSAT images. Based on measurements of shoreline features in Lake Mead S190A images had 1.5 - 3 times greater resolution than LANDSAT. In general, the higher resolution of the Skylab data yielded better discrimination among rock units, but in the case of structural features, lower sun angle LANDSAT images (50 deg) were superior to higher sun angle Skylab images (77 deg). The most valuable advantage of the Skylab over the LANDSAT image products is the capability of producing stereo images. Field spectral reflectance measurements on the Coconino Plateau were made in an effort to determine the best spectral band for discrimination of the six geologic units in question, and these bands were 1.3, 1.2, 1.0, and 0.5 microns. The EREP multispectral scanner yielded data with a low signal to noise ratio which limited its usefulness for image enhancement work. Sites that were studied in Arizona were Shivwits Plateau, Verde Valley, Coconino Plateau, and Red Lake. Thematic maps produced by the three classification algorithms analyzed were not as accurate as the maps produced by photointerpretation of composites of enhanced images. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 76N19514
NASA-CR-147503
E76-10206 |
| 権利 | No Copyright |
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