Uncertainty Assessment of Soil Erosion Model Using Particle Filtering
文献类型：期刊论文
| 作者 | Yeonsu KIM ; Giha LEE ; Hyunuk AN ; Jae E YANG |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2015-07 |
| 卷号 | 12期号:4页码:828-840 |
| 关键词 | Data assimilation Particle filter Soil erosion modeling Parameter estimation Time variant parameter Mountainous catchment |
| ISSN号 | 1672-6316 |
| 通讯作者 | Giha LEE |
| 英文摘要 | Recent advances in computer with geographic information system (GIS) technologies have allowed modelers to develop physics-based models for modeling soil erosion processes in time and space. However, it has been widely recognized that the effect of uncertainties on model predictions may be more significant when modelers apply such models for their own modeling purposes. Sources of uncertainty involved in modeling include data, model structural, and parameter uncertainty. To deal with the uncertain parameters of a catchment-scale soil erosion model (CSEM) and assess simulation uncertainties in soil erosion, particle filtering modeling (PF) is introduced in the CSEM. The proposed method, CSEM-PF, estimates parameters of non-linear and non-Gaussian systems, such as a physics-based soil erosion model by assimilating observation data such as discharge and sediment discharge sequences at outlets. PF provides time-varying feasible parameter sets as well as uncertainty bounds of outputs while traditional automatic calibration techniques result in a time-invariant global optimal parameter set. CSEM-PF was applied to a small mountainous catchment of the Yongdam dam in Korea for soil erosion modeling and uncertainty assessment for three historical typhoon events. Finally, the most optimal parameter sets and uncertainty bounds of simulation of both discharge and sediment discharge at each time step of the study events are provided. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10631]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2015_Vol12 No.4 |
| 推荐引用方式 GB/T 7714 | Yeonsu KIM,Giha LEE,Hyunuk AN,et al. Uncertainty Assessment of Soil Erosion Model Using Particle Filtering[J]. Journal of Mountain Science,2015,12(4):828-840. |
| APA | Yeonsu KIM,Giha LEE,Hyunuk AN,&Jae E YANG.(2015).Uncertainty Assessment of Soil Erosion Model Using Particle Filtering.Journal of Mountain Science,12(4),828-840. |
| MLA | Yeonsu KIM,et al."Uncertainty Assessment of Soil Erosion Model Using Particle Filtering".Journal of Mountain Science 12.4(2015):828-840. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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