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- Title
基于遥感的鄱阳湖丰水期悬浮泥沙数值模拟预测.
- Authors
张鹏; 陈晓玲; 陆建忠; 张伟; 肖雄武
- Abstract
Suspended sediment s one of the important factors of water quality and aquatic ecosystem for lakes. A two-dimensional sediment transport model of Poyang Lake was established in the wet season. The lake substrate data obtained from remote sensing image was used to perform parameter sensitivity analysis of the sediment transport model, and then the model parameters were calibrated based on the insitu measured sediment concentration in the area with different lake substrate type. The model was used to forecast the sediment transport of Poyang Lake during ts high water period in 2013. Model validation showed the square root mean error s 19. 8 mg/L and the R2 s 0. 78 for the emulated sediment concentration, revealing a good performance of the model. Spatial distribution of sediment concentration from the model results and remote sensing images showed a satisfactory spatial consistence, further indicating the ability of the model to simulate the sediment transport of Poyang Lake. This study provides a reliable method to monitor the water environment dynamic of lakes and makes a foundation for further studying the water environment dynamic of Poyang Lake.
- Publication
Geomatics & Information Science of Wuhan University, 2017, Vol 42, Issue 3, p369
- ISSN
1671-8860
- Publication type
Article
- DOI
10.13203/j.whugis20140880