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Listar por autor "Chen, Zi"

Mostrando ítems 1-6 de 6

A comparison between ES-MDA and restart EnKF for the purpose of the simultaneous identification of a contaminant source and hydraulic conductivity

Xu, Teng; Gómez-Hernández, J. Jaime; Chen, Zi; Lu, Chunhui (Elsevier, 2021-04)

[EN] Understanding a contaminant source may help in a better management and risk assessment of a polluted aquifer. However, contaminant source information may not be available when a pollutant is detected in a drinking ...
Contaminant source and aquifer characterization: An application of ES-MDA demonstrating the assimilation of geophysical data

Chen, Zi; Zong, Leli; Gómez-Hernández, J. Jaime; Xu, Teng; Jiang, Yuehua; Zhou, Quanping; Yang, Hai; Jia, Zhengyang; Mei, Shijia (Elsevier, 2023-11)

[EN] Contaminant source and aquifer characterization (CSAC) is critical in groundwater pollution evaluation and remediation. The ensemble smoother with multiple data assimilation (ES-MDA) is utilized to jointly identify ...
Contaminant Spill in a Sandbox with Non-Gaussian Conductivities: Simultaneous Identification by the Restart Normal-Score Ensemble Kalman Filter

Chen, Zi; Xu, Teng; Gómez-Hernández, J. Jaime; Zanini, Andrea (Springer-Verlag, 2021-10)

[EN] The joint identification of the parameters defining a contaminant source and the heterogeneous distribution of the hydraulic conductivities of the aquifer where the contamination took place is a difficult task. Previous ...
Joint identification of contaminant source and aquifer geometry in a sandbox experiment with the restart ensemble Kalman filter

Chen, Zi; Gómez-Hernández, J. Jaime; Xu, Teng; Zanini, Andrea (Elsevier, 2018-09)

[EN] Contaminant source identification is a key problem in handling groundwater pollution events. The ensemble Kalman filter (EnKF) is used for the spatiotemporal identification of a point contaminant source in a sandbox ...
Non-point contaminant source identification in an aquifer using the ensemble smoother with multiple data assimilation

Xu, Teng; Zhang, Wenjun; Gómez-Hernández, J. Jaime; Xie, Yifan; Yang, Jie; Chen, Zi; Lu, Chunhui (Elsevier, 2022-03)

[EN] Proper identification of groundwater contaminant sources is vital to assess groundwater contamination. However, the majority of previous studies focuses on point source identification; only a few works have been ...
Stochastic Identification of Pollutant Sources in Aquifers by the Ensemble Kalman Filter

Chen, Zi (Universitat Politècnica de València, 2021-02-01)

[ES] Como parte de los métodos de asimilacíon de datos, los métodos basados en conjuntos han ganado popularidad en hidrogeología dada su capacidad para manejar grandes cantidades de datos observados simultáneamente. ...