SENSITIVE ANALYSIS OF VARIOUS MEASUREMENT ERRORS ON TEMPEARTURE AND EMISSIVITY SEPARATION METHOD WITH HYPERSPECTRAL DATA
文献类型：会议论文
| 作者 | Ouyang X. Y. ; Wang X. H. ; Tang B. H. ; Li Z. L. ; Ieee |
| 出版日期 | 2009 |
| 关键词 | Sensitive analysis Hyperspectral thermal infrared data Land surface temperature land surface emissivity |
| 页码 | 933-936 |
| 英文摘要 | Land surface temperature (LST) and emissivity are required for many applications. Several methods have been proposed to retrieve these two parameters from hyperspectral data, some of which are based on the spectral smoothness of emissivity. To analyze the sensitivity of those methods to various measurement errors, hyperspectral TIR data are first simulated using radiative transfer model 4A/OP (Operational Release for Automatized Atmospheric Absorption Atlas) with different atmospheric profiles and surface parameters, and then the sensitivity of the Downwelling Radiance Residual Index method to different sources of error is analyzed. In terms of resulting errors in LST, results show that 1) the method is not very sensitive to the uncertainties of atmosphere. An error of 1 47 g/cm(2) on water vapor content for a sub-arctic summer atmosphere (2.1g/cm(2)) only leads to an error of 1 8K for rock2 (the worst case) 2) Satisfactory results are obtained by this method over heterogeneous land surface. LST retrieval error is less than 0.3K for all atmospheres. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee |
| 语种 | 英语 |
| ISBN号 | 978-1-4244-3394-0 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25235]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Ouyang X. Y.,Wang X. H.,Tang B. H.,et al. SENSITIVE ANALYSIS OF VARIOUS MEASUREMENT ERRORS ON TEMPEARTURE AND EMISSIVITY SEPARATION METHOD WITH HYPERSPECTRAL DATA[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
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