ZHAOHaiyang,HUWei,WANGYu,et al.Unmanned Aerial Vehicle Remote Sensing Monitoring on Water Transparency in the Pioneer Region of the Yangtze River Delta Integrated Development[J].China Water & Wastewater,2026,42(10):62-68.
Unmanned Aerial Vehicle Remote Sensing Monitoring on Water Transparency in the Pioneer Region of the Yangtze River Delta Integrated Development
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第10期
Page:
62-68
Column:
Date of publication:
2026-05-17
- Keywords:
- Yangtze River Delta Integrated Development; water transparency; UAV; hyperspectral; remote sensing monitoring
- Abstract:
- The pioneer zone for the integrated development of the Yangtze River Delta is a benchmark for advancing eco-friendly and high-quality development. Unmanned Aerial Vehicle (UAV) remote sensing, with its flexible and efficient characteristics, can provide significant support for the ecological civilization construction in the pioneer region. By integrating in-situ measured spectral and water transparency data, a transparency retrieval model was developed for the research area. A UAV hyperspectral image covering 54 km2 was acquired to monitor the spatial distribution of water transparencyin the pioneer region. Validation results showed that the root mean square error (RMSE) of the transparency retrieval model on the validation set was 6.7 cm. Applying the transparency retrieval model to the aerial imagery revealed the spatial pattern of transparency, identifying low-transparency water bodies as aquaculture ponds and high-transparency ones as small rivers in the polder area. Spectral analysis indicated differences in turbidity-causing substances among low-transparency waters, and the turbidity agents in aquaculture ponds and lakes are algae. A transparency difference of approximately 30 cm was observed on either side of a water gate, suggesting that such hydraulic structures have reduced the impact of water from the Taipu River on the rivers inside the polder area.
Last Update:
2026-05-17