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- W2914378397 abstract "Abstract. Studies about landslide modeling and monitoring are becoming more diverse. Data assimilation is an approach to combine mechanism models and observations. In this study, an improved particle filtering algorithm is used to assimilate the transient rainfall infiltration and grid-based regional slope-stability analysis (TRIGRS) model and landslide surface deformation monitoring data observed with GPS and InSAR. After assimilation calculation, FS has been effectively corrected, rather than continuously decreasing as the background model output. The root mean square difference (RMSD) tends to decrease from a maximum of 0.084 to a minimum of 0.026 in the process of assimilation, which means the assimilation process makes the model output FS closer to the actual observations. The friction angle (φ), which is an investigated parameter, can be updated and fed back in each step of assimilation. The value of the investigated parameter makes the model output closer to the observation. The groundwater pressure head is output as an assimilation result simultaneously." @default.
- W2914378397 created "2019-02-21" @default.
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- W2914378397 date "2019-02-12" @default.
- W2914378397 modified "2023-10-16" @default.
- W2914378397 title "Landslides Data Assimilation Using TRIGRS Based on Particle Filtering" @default.
- W2914378397 doi "https://doi.org/10.5194/nhess-2019-16" @default.
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