With the main streams in the middle and lower reaches of the Yangtze River as the study area, this study conducted waveform retracking for the Sentinel-3A/SRAL L2 data using the center-of-gravity offset method, the primary peak threshold retracking algorithm (thresholds: 50% and 80%...
河流水位是了解水循环和水资源变化状况的重要参数.新型雷达高度计技术是提取河流水位变化的有利工具.为了验证新型雷达高度计Sentinel-3A/SRAL数据监测河流水位的能力,提高其提取河流水位变化的精度,以长江中下游干流为研究对象,利用重心偏移法,阈值主波峰重跟踪算法(阈值取50%和80%),重心主波形重跟踪算法和多回波波峰...