Development of the adjoint model of a canopy radiative transfer model for sensitivity study and inversion of leaf area index
文献类型：SCI/SSCI论文
| 作者 | Qin J. ; Liang S. L. ; Li X. W. ; Wang J. D. |
| 发表日期 | 2008 |
| 关键词 | adjoint model automatic differentiation inversion leaf area index (LAI) radiative transfer sensitivity study trust region method land-surface imagery trust-region method automatic differentiation atmospheric correction reflectance spectra fpar algorithm validation vegetation simulation satellite |
| 英文摘要 | Many canopy reflectance models have been developed in the last decades and used for estimating land surface bio-geophysical variables, such as leaf area index (LAI), from satellite observations through optimization procedures. In most studies, the derivative information of the canopy reflectance model has not been used effectively, which limits this approach for regional and global applications. The final solutions are often converged to the local minima. To address these issues, the adjoint model of a canopy radiative transfer model is developed in this study through the automatic differentiation technique. The developed adjoint model is used for sensitivity study, and a combination of the adjoint model with the trust region global optimization method is performed to retrieve LAI from the Enhanced Thematic Mapper Plus (ETM+). This study demonstrates that this method can be reliably used for inverting LAI efficiently and is suitable for global applications. |
| 出处 | Ieee Transactions on Geoscience and Remote Sensing |
| 卷 | 46 |
| 期 | 7 |
| 页 | 2028-2037 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0196-2892 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23177]  |
| 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 | Qin J.,Liang S. L.,Li X. W.,et al. Development of the adjoint model of a canopy radiative transfer model for sensitivity study and inversion of leaf area index. 2008. |
入库方式： OAI收割
来源：地理科学与资源研究所
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