Retrieval Method for Estimating Snow Depth Using Hyperspectral Data in Snowmelt Period
文献类型：SCI/SSCI论文
| 作者 | Xu Q. ; Liu Z. H. ; Fang S. F. |
| 发表日期 | 2013 |
| 关键词 | Hyperspectral Melt period Snow depth ANN-BP cover |
| 英文摘要 | The snow surface reflectance spectra with different depth in snowmelt period and snow depth data were measured and its correlation was analyzed. The characteristic absorption band data of the valley with higher correlation were used to establish a single band snow depth regression model. The highest contribution rate of the band was selected as the input variable of the neural network model to retrieve snow depth. The results show that in Juntang Lake area, near 1 022, 1 241 and 1 492 nm exists characteristic absorption valley of snow, and compared to estimation accuracy of the single-band inversion of snow depth model (R-2=0. 53), ANN-BP model has a higher inversion level, and determination coefficient (R-2 = 0. 86, RMSE = 0. 67) was obtained with 4 nodes in hidden layers, indicating that ANN-BP model can greatly improve the ability of inversion of snow depth with hyperspectral data. |
| 出处 | Spectroscopy and Spectral Analysis |
| 卷 | 33 |
| 期 | 7 |
| 页 | 1927-1931 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1000-0593 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30134]  |
| 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 | Xu Q.,Liu Z. H.,Fang S. F.. Retrieval Method for Estimating Snow Depth Using Hyperspectral Data in Snowmelt Period. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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