基于GF-1 WFV影像的浑河悬浮物浓度和浊度遥感反演研究

摘要

综合利用高分一号(GF-1)卫星WFV影像和地面同步水质实测数据,以沈阳浑河为实验区,分别建立悬浮物浓度和浊度反演经验模型.经验证分析GF-1WFV数据可有效反映浑河悬浮物浓度和浊度,且反演精度较好,结果均符合常规水质监测规律.同时基于浊度数据模拟的悬浮物浓度也具有较高的精度,拟合度达到0.68,可为今后简化浑河悬浮物浓度反演流程提供经验.将反演模型应用于GF-1卫星WFV数据,得到2016年9月浑河悬浮物浓度和浊度分布图,反映了浑河流域悬浮物浓度和浊度的空间变化规律.对GF-1卫星WFV数据和Thermo便携式浊度计综合运用进行中小尺度河流水质遥感监测有一定的参考价值.%The experimental models of the suspended solidsconcentration and turbidity inversion are based on the GF-1 WFV satellite images and the actual synchronous data from the Shenyang Hunheriver.The GF-1 WFV data effectively reflect the suspended solids concentration and turbidity in the Hunheriver well with better precision in the simulation with the fitting degree of 0.68.This result can simplify Hunhe river suspended solids concentration inversion process.The model to GF-1 WFV data given by the distribution diagram of Hunheriversuspended solids concentration and turbidity in September in 2016 reflects the spatial change law of suspended solids concentration and turbidity.This study offers a valuable example for remote monitoring of river water quality by GF-1 WFV and Thermo portable turbidimeter.