Early Identification of River Blockage Disasters Caused by Debris Flows in the Bailong River Basin, China
Abstract
:1. Introduction
2. Data and Methods
2.1. Inventory of River Blocking Disasters
2.2. Impact Factors of Debris Flow-Induced River Blockages
2.3. Modeling Methods
2.3.1. Machine Learning Algorithms
2.3.2. Data Processing
2.3.3. Model Validation and Feature Importance
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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No. | Factors | Abbr. | Unit | Data and Methods |
---|---|---|---|---|
1 | Basin area | A | km2 | DEM and GIS analysis |
2 | Basin height difference | H | m | DEM and GIS analysis |
3 | Channel relief ratio | Rr | / | DEM and GIS analysis |
4 | Circularity ratio | Cr | / | DEM and GIS analysis |
5 | Landslide density | Ld | / | Remote sensing interpretation and GIS analysis |
6 | Fault density | Fd | / | GIS analysis |
7 | Lithology index | Li | / | GIS analysis |
8 | Annual average frequency of daily rainfall >40 mm | F40 | times/yr | Rainfall data and GIS analysis |
9 | River width | Rw | m | Remote sensing interpretation and GIS analysis |
10 | River discharge | Rd | m3/s | Hydrological observation data |
11 | River gradient | Rg | / | Remote sensing interpretation and GIS analysis |
12 | Confluence angle | Ca | ° | Remote sensing interpretation and GIS analysis |
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Zeng, J.; Zhao, Y.; Zheng, J.; Zhang, Y.; Shi, P.; Li, Y.; Chen, G.; Meng, X.; Yue, D. Early Identification of River Blockage Disasters Caused by Debris Flows in the Bailong River Basin, China. Remote Sens. 2024, 16, 1302. https://doi.org/10.3390/rs16071302
Zeng J, Zhao Y, Zheng J, Zhang Y, Shi P, Li Y, Chen G, Meng X, Yue D. Early Identification of River Blockage Disasters Caused by Debris Flows in the Bailong River Basin, China. Remote Sensing. 2024; 16(7):1302. https://doi.org/10.3390/rs16071302
Chicago/Turabian StyleZeng, Jianjun, Yan Zhao, Jiaoyu Zheng, Yongjun Zhang, Pengqing Shi, Yajun Li, Guan Chen, **ngmin Meng, and Dongxia Yue. 2024. "Early Identification of River Blockage Disasters Caused by Debris Flows in the Bailong River Basin, China" Remote Sensing 16, no. 7: 1302. https://doi.org/10.3390/rs16071302