| タイトル | Quantitative Mapping of Reflected and Emitted Energy Patterns Over a City |
| 著者（英） | Estes, M.; Quattrochi, D.; Rickman, D.; Luvall, J.; Arnold, James E. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2002-01-01 |
| 言語 | eng |
| 内容記述 | There are major variations in energy flux within and across the region of a large city. These variations have impacts in disparate areas, such as human health, environmental monitoring and mitigation, and energy consumption. Knowledge of the variations also has utility to urban and regional planners, and climate modelers. The authors have developed a system which permits robust measurement of both the magnitude of the energy flux variation and the absolute value of energy flux over regions of the size of large cites. The technique uses properly acquired and processed multispectral imagery with bands in the visible, near-IR and thermal portions of the electromagnetic spectrum. With proper knowledge of the atmosphere and geometries of acquisition it is possible to compute the energy budget for individual pixels. The reality of this technique is demonstrated using data acquired over Salt Lake City, Utah. The deficiencies in the results emphasize the critical nature of various design and engineering features usually ignored in airborne and satellite imaging systems. |
| NASA分類 | Instrumentation and Photography |
| 権利 | No Copyright |
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