Application of UAV Push-Broom Hyperspectral Images in Water Quality Assessments for Inland Water Protection: A Case Study of Zhang Wei Xin River in Dezhou Distinct, China

A water quality parameter retrieval scheme based on the UAV push-broom hyperspectral images was designed and validated for assessing ecological health of Zhang Wei Xin River in Dezhou distinct, China. First, a carrying imager that is lightweight has small size used to acquire high spatial resolution images. Then, mosaicked reflectance data whole river were produced by seamless image mosaicking method with geometrical accuracy spectral fidelity. Next, in-field measurements different parameters corresponding from at sampling points build models total phosphorus (TP), chlorophyll (Chla), suspended solids (TSS). To validate model, results testing compared measured parameters. The coefficients determination R2 TP, Chla, TSS 0.886, 0.918, 0.968, respectively. retrieved maps showed pollution serious, exceeds standard, body state eutrophication. UAV-based remote sensing technique provides cost-effective inland monitoring local scale accuracy.